„Made for Motion‘ is

more than a slogan.

It is a commitment
driving us every day.“
Prof. Dr. h.c. Josef Gerstner, CEO of KTR

For continuously updated data please refer to our online catalogue at www.ktr.com 3
4
Those who value KTR as a manufacturer will love
us as a partner.

It goes without saying that KTR supplies sophisticated Working on the future: the new Power
products. It may be less obvious that we already supply Transmission Center
quality when the product does not yet exist: that is to say
as a competent consulting partner and/or sparring partner. To make sure that today’s drive technology will not be out-
On request KTR is there for the customers already during dated already tomorrow, it must be continuously devel-
the design stage reverting to the know-how and experience oped: This is done in the Power Transmission Center. It was
gained from thousands of applications in the field. No mat- opened in Rheine, the location of KTR’s headquarters, in
ter which question our customers may have: We also advise April 2015, combining the fields of innovation management,
on site and support you with designing. measuring technology, mechatronics and quality manage-
ment.
An up-to-date R & D center along with a multifunctional as-
sembly hall was built on a total surface of approx. 8,800
square metres. Drive components such as mechanical cou-
plings, torque limiters and torque measuring shafts are de-
veloped, assembled and continuously tested here as well
as hydraulic components like bellhousings, oil tanks and
damping elements.

„We provide for strong

connections.
In particular with
We do not conceive ourselves as
suppliers, but as solution providers.
our customers.“
Martin Platt, Sales Manager
Standstill in an industry dealing with motion? That is defi-
nitely a no-go for KTR. Although our product portfolio com-
prises more than 20,000 different couplings and other drive
components including brakes and coolers, it only shows
part of the options. Specifically with the development of in-
dividual solutions KTR makes full use of its strenghts. On To ensure a smooth operation, the products are tested and
behalf of the customer KTR realizes more than 20,000 new further developed by KTR. For this purpose more than 25
developments and product variants some of which become hydraulic and electric test benches are available to the en-
industrial standard every year. Be assured: Together with gineers in the PTC. And since nothing is harder than reality,
our sales engineers and the sales team you will always find KTR is testing its products under realistic conditions, i. e.
a tailor-made, cost-effective solution for your application. conditions similar to operation.
Anyway, KTR’s products meet with special demands with
external testing, too. One proof for that are the numerous
certifications and standards our products were confered in
many different fields.

That is how we see ourselves: You can rely on KTR. We

disapprove standstill – with us and our customers.

5
Index of subjects

A O
All-steel gear couplings 104 et seqq. Overload coupling 224 et seqq.

B P
Backlash-free couplings 114 et seqq., 144 et seqq., 158 et seqq., Permanent-magnetic couplings 210 et seqq.
 160 et seqq., 166 et seqq., 176 et seqq. Pin & bush couplings (torsionally flexible) 73 et seqq.
Ball ratchet couplings 234 et seqq. Precision couplings 114 et seqq., 144 et seqq.,
Basic programme 32, 86  158 et seqq., 160 etseqq.
Bellow-type couplings 144 et seqq. Precision joints 296 et seqq.

C R
Cam couplings 26 et seqq., 61 et seqq., 118 et seqq. Rigid shaft couplings 292
Clamping hubs 42, 126, 128, 148, 150, 154, 159, 190
Clamping nuts  295 S
Clamping ring hubs 41, 130 et seqq., 152
Clamping sets  258 et seqq. Safety couplings 224 et seqq.
Clamping sleeves  270 Safety couplings with retaining elements 234 et seqq.
Coatings39 Servo couplings 114 et seqq., 144 et seqq.,
Corrosion protection 38, 39, 87, 100  158 et seqq., 160 et seqq.
Crowned gear couplings 80 et seqq., 182 et seqq. Servo lamina couplings 158 et seqq.
Curved-tooth gear couplings 80 et seqq., 182 et seqq. Shaft couplings 26 et seqq., 61 et seqq. 69 et seqq., 73 et seqq.,
  84 et seqq., 104 et seqq., 118 et seqq., 144 et seqq.,
D  158-161, 166 et seqq., 176 et seqq., 214 et seqq.
Shaft couplings made of steel 104 et seqq., 148 - 151, 162 et seqq.
Distance couplings 47 et seqq., 68, 71, 108, 140 et seqq., Shaft encoder couplings 126, 146, 160
 170 et seqq. Shaft-hub-connections 258 et seqq.
Double-cardanic shaft couplings 47 et seqq., 87 et seqq., Shear pin couplings 58
 104 et seqq., 138 et seqq., Shear type couplings 46, 47, 69
 160, 162 et seqq.176 et seqq. Shell drop-out center design couplings 44, 45, 47, 48, 96, 136, 140
Drop-out center design coupling 47 et seqq., 68, 71, 108, Shifting hubs 55, 92 et seqq., 113
 140 et seqq., 170 et seqq. Stock programme of finish bores 32, 86
 Spacer couplings Spacer couplings
E Speed measuring shafts 304 et seqq.
Spiders 28, 61, 119
Elastomer couplings 22 et seqq., 98, 114 et seqq., Stainless steel couplings 39, 100
 198 et seqq.,206 et seqq. Steel lamina couplings 158, 166, 176
External clamping set 288 et seqq.
T
F
Taper clamping bushes 40, 64
Fail-safe shaft couplings 22 et seqq., 61., 104 et seqq., 118. Taper clamping ring hubs 41, 130 et seqq., 152
Flange couplings 183 et seqq. Torque limiters 224 et seqq.
Flexible couplings 22 et seqq., 98, 114 et seqq., Torque measuring shafts 304 et seqq.
 198 et seqq., 206 et seqq. Torsionally flexible couplings 23 et seqq.
 Torsionally rigid couplings 292
G Torsionally stiff couplings 114 et seqq., 144 et seqq., 159 et seqq.
Gear couplings 84 et seqq., 104 et seqq., 182 et seqq.
 U
H Use with explosion-proof applications 9, 25, 83, 117, 165, 185, 213
Hermetic sealing 210 et seqq. Universal clamping sets 258 et seqq.
Highly flexible couplings 98, 198 et seqq.

I
Idle rotating couplings 237-241
Intermediate shafts 51, 97, 110, 141-143, 172
Internal clamping sets 258 et seqq.

K
Kinds of spider hardness 28, 61, 119

L
Lamina couplings 158, 166, 176

M
Magnetic couplings 210 et seqq.
Metal bellow-type couplings 144 et seqq.
Miniature clamping sets 258 et seqq.
Miniature couplings 38, 126 et seqq., 146 et seqq., 158, 160
Mounting flanges 185 et seqq.

6 For continuously updated data please refer to our online catalogue at www.ktr.com
 Summary of products

Couplings
Flexible jaw and pin & bush couplings 22
Gear couplings 80
Backlash-free servo couplings 114
Steel lamina couplings 162
Flange couplings 182
Magnetic couplings 210

Torque limiters
Torque limiters 228
Overload systems 236
Backlash-free overload systems 242

Clamping elements and precision joints

Clamping sets 258
Clamping nut 295
Precision joints 296

Torque measuring technology

Torque measuring shafts 304

For continuously updated data please refer to our online catalogue at www.ktr.com 7
 Summary of products / Specifications

/s]

ible
]
[mm
d [m

s
ion
flex

free
]

nic
igid
[Nm

nic
free
ter
pee

ens
e

rda

rda
ce-
ally

e
ly r

yp
me

ible
ue

saf
sh-
r. s

-ca
ar t

-ca
nan
ion
nal
dia

t di
torq

l-
mfe

kla
Fle

ble
Fai

She

gle
sio

tors

inte

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ore

Bac
u
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Dou

Sin
Tor
circ
Ma

Ma

Com
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hly

Hig
Hig
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Ma
Ma

COUPLINGS

Flexible jaw and pin & bush couplings

ROTEX® 35.000 60 100

POLY-NORM® 67.000 35 280

POLY 6.100 35 140

REVOLEX® KXD 1.220.000 60 650

Gear couplings

BoWex® 2.500 30 125

BoWex HEW Compact

®
5.000 125

GEARex® 2.750.000 – 520

Backlash-free servo couplings

ROTEX® GS 5.850 80 110

TOOLFLEX ®
600 40 65

RADEX -NC®
300 35 55

COUNTEX® 1 40 14

Steel lamina couplings

RADEX®-N 280.000 65 330

RIGIFLEX -N ®
280.000 100 400

RIGIFLEX®-HP 330.000 200 380

Flange couplings for I.C.- engines

BoWex® FLE-PA / FLE-PAC 5.300 50 125

BoWex-ELASTIC ®
39.000 180

MONOLASTIC® 1.500 50 60

Magnetic couplings

MINEX®-S 1.000 90

TORQUE LIMITERS

RUFLEX® 6.800 120

KTR-SI 8.200 100

KTR-SI FRE 60.000 200

SYNTEX® 400 50

SYNTEX -NC ®
265 42

KTR-SI Compact 3.100 80

CLAMPING SETS

CLAMPEX® 7.394.000 1.000

TORQUE MEASURING SHAFTS

DATAFLEX® 50.000 – –

For legend of certificate please refer to flapper on the cover

8 For continuously updated data please refer to our online catalogue at www.ktr.com
 gh
pow
er d
ens
ity
Axi
al p
lug
-in

All-
ste
el

Con
tac
tles
s
Fric
t ion
cou
p ling
Rat
che
t cou
p ling

Sel
f-ce
nte
ri ng
Not
sel
f-ce
nte
ri ng

For continuously updated data please refer to our online catalogue at www.ktr.com
ATE
X
GO
ST
R/G
OS
TT
R

Bur
eau
Ver
itas
Am
eric
a nB
of S ureau
hip
pin
g

DN
Cou VG
DIN pling L
740 se
par lectio
t II n
Cou (p. 1 acc.
plin 0e to
ope g se t se
lec qq.
rati
ng tio )
fac n bas
tors ed
Cou seq ( o
p q.) p. 14 e n
t
DIN ling s
740 elect
fac p i o
tors art II n acc.
(p. 1 with to
s
98
84
73
69
61
26

8e

306
260
255
250
242
239
234
228
212
206
198
186
179
176
166
160
158
144
118
104

Pro t se pec.
qq.
duc
t pa )

9
ges
from
pag
e
Coupling selection according to
DIN 740 part II

Coupling types
Flexible jaw couplings
ROTEX® Flexible coupling (see page 24)

–– Flexible
–– Maintenance-free
–– Fail-safe
–– Compact dimensions
–– Axial plug-in

POLY-NORM® Flexible coupling (see page 24)

–– Flexible
–– Maintenance-free
–– Fail-safe
–– Compact dimensions
–– Axial plug-in

POLY Flexible, shear-type coupling (see page 24)

–– Flexible
–– Maintenance-free
–– Shear type
–– Axial plug-in

Gear couplings
BoWex® Torsionally rigid curved-tooth gear coupling®, (see page 82)
–– Torsionally rigid
–– Maintenance-free
–– Shear type
–– Compact dimensions
–– Single-cardanic or double-cardanic
–– Axial plug-in
BoWex® HEW Compact Highly flexible shaft coupling (see page 82)
–– Highly flexible
–– Maintenance-free
–– Shear type
–– Compact dimensions
–– Single-cardanic
–– Axial plug-in

Flange couplings for I.C.- engines

BoWex-ELASTIC® Highly flexible flange coupling (see page 184)
–– Flexible to highly flexible
–– Maintenance-free
–– Shear type
–– Compact dimensions
–– Single-cardanic
–– Axial plug-in
MONOLASTIC® One-piece, flexible flange coupling (see page 184)
–– Flexible
–– Maintenance-free
–– Shear type
–– Compact dimensions
–– Single-cardanic
–– Axial plug-in
BoWex® FLE-PA (PAC) Torsionally rigid flange coupling (see page 184)
–– Torsionally rigid
–– Maintenance-free
–– Shear type
–– Compact dimensions
–– Single-cardanic
–– Axial plug-in

10 For continuously updated data please refer to our online catalogue at www.ktr.com
coupling selection according to
DIN 740 part II

Terminology of coupling selection

Description Symbol Definition or explanation Description Symbol Definition or explanation
Rated torque of cou- TKN Torque that can be continuously transmitted over the Damping power of machine PW Damping power which is effective on the coupling due
pling [Nm] entire permissible speed range. [W] to the load generated by the vibratory torque
Maximum torque of TK max. Torque that can be transmitted as dynamic load ≥ 105 Engine power [kW] P Rated power of drive
coupling [Nm] times or 5 x 104 as vibratory load, respectively, over the Speed [rpm] n Rated speed of engine
entire operating life of the coupling
Rotational inertia coef- MA Factor taking into account the mass distribution
Vibratory torque of TKW Torque amplitude of the permissible periodical torque ficient of driving side with shocks and vibrations generated on the driving
coupling [Nm] fluctuation with a frequency of 10 Hz and a basic load or load side
of TKN or dynamic load up to TKN, respectively Rotational inertia coef- ML
ficient of load side
Damping power of PKW Permissible damping power with an ambient tempera-
coupling [W] ture of + 30 °C. Mass moment of inertia of JA Total of moments of inertia existing on the driving or
driving side [kgm²] load side referring to the coupling speed
Rated torque of machine TN Stationary rated torque on the coupling
[Nm] Mass moment of inertia of JL
load side [kgm²]
Rated torque of driving TAN Rated torque of machine, calculated from rated power
side [Nm] and rated speed Mass moment of inertia of JKA Mass mom. of inertia of the coupl. half on the drive side
coupling [kgm²]
Rated torque of load TLN Maximum figure of the load torque calculated from JKL Mass mom. of inertia of the coupl. half on the load side
side [Nm] power and speed
Starting factor SZ Factor taking into account load caused by starting
Peak torque of machine TS Peak torque on the coupling frequency per hour
[Nm]
Shock factor on driving side SA Factor taking into account the shocks arising de-
Peak torque of driving TAS Peak torque with torque shock on driving side, e. g. pending on the application (e. g. starting shocks)
Shock factor on load side SL
side [Nm] tilting moment of the electric motor.
Temperature factor St Temperature factor – Factor considering the lower
Peak torque of load TLS Peak torque with torque shock on load side, e. g.
loading capacity or larger deformation of an elasto-
side [Nm] braking
mer part under load particularly in case of increased
Vibratory torque of TW Amplitude of the vibratory torque effective on the temperatures.
machine [Nm] coupling
Operating factor SB Factor considering the different demands on the
coupling dependent on the application.
Screw tightening torque TA Screw tightening torque
[Nm]

Temperature factor St
-50 °C -30 °C  /+30 °C ≤ +40 °C ≤ +50 °C ≤ +60 °C ≤ +70 °C ≤ +80 °C ≤ +90 °C ≤ +100 °C ≤ +110 °C ≤ +120 °C
ROTEX®
T-PUR® 1,0 1,0 1,1 1,2 1,3 1,45 1,6 1,8 2,1 2,5 3,0
PUR – 1,0 1,2 1,3 1,4 1,55 1,8 2,2 – – –
POLY-NORM®
NBR 78 Shore A – 1,0 1,2 1,3 1,4 1,6 1,8 – – – –
POLY
NBR (building block) – 1,0 1,2 1,3 1,4 1,6 1,8 – – – –
BoWex®
PA 6.6 1,0 1,0 1,0 1,0 1,0 1,2 1,4 1,6 1,8 – –
PA-CF 1,0 1,0 1,0 1,0 1,0 1,1 1,2 1,4 1,6 1,9 2,2
BoWex® HEW Compact – 1,0 1,0 1,0 1,0 1,1 1,4 1,7 – – –
BoWex® ELASTIC®
Standard – 1,0 1,0 1,0 1,0 1,2 1,6 – – – –
Temperature stable M.* – 1,0 1,0 1,0 1,0 1,1 1,4 1,7 – – –
MONOLASTIC®
Standard – 1,0 1,0 1,0 1,0 1,2 1,6 – – – –
BoWex® FLE-PA (PAC)
PA 6 GF 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,2 1,4 1,6 1,8
PA-CF 1,0 1,0 1,0 1,0 1,0 1,1 1,2 1,4 1,6 1,9 2,2
* Temperature stable compound is marked with „T“ in front of hardness (e. g. T 50 Sh)
For the selection with PEEK spider a temperature factor is not necessary.
For temperature factors for PA spiders see page 30.

Starting factor SZ Operating factor SB

ROTEX®, POLY-NORM®, POLY, BoWex®, BoWex® HEW Compact Hydrostatic drives for BoWex® FLE-PA, MONOLASTIC®
Starting frequency per hour < 100 < 200 < 400 < 800 Applications SB
SZ 1,0 1,2 1,4 1,6 Wheel loaders 1,6
BoWex-ELASTIC® Compact loaders 1,6
Starting frequency per hour < 10 < 60 < 120 > 120 Hydraulic excavators 1,4
SZ 1,0 1,5 2,0 auf Anfrage Mobile cranes 1,6
Graders 1,5
Vibration rollers 1,4
Shock factor SA/SL Fork lift trucks 1,6
ROTEX®, POLY-NORM®, POLY, Concrete mixer trucks 1,3
SA/SL Concrete pumps 1,4
BoWex®, BoWex® HEW Compact, BoWex-ELASTIC®
Moderate shocks 1,5 Asphalt finishers 1,4
Average shocks 1,8 Concrete cutters 1,4
Heavy shocks 2,5 Road milling machines 1,4

Permissible load on feather key of the coupling hubs

The shaft-hub-connection has to be verified by the customer.
Permissible surface pressure according to DIN 6892 (method C).
Cast iron GJL 225 N/mm² Powder metal steel 180 N/mm²
Nodular iron GJS 225 N/mm² Aluminium diecast Al-D 200 N/mm²
Steel 250 N/mm² Aluminium semi-finished product Al-H 110 N/mm²
Polyamide 30 N/mm2 (up to + 40 °C) For other steel materials pperm. 0,9  Re (Rp0.2)

For continuously updated data please refer to our online catalogue at www.ktr.com 11
Coupling selection according to
DIN 740 part II

Coupling selection
The coupling selection is based on DIN 740 part 2. The coupling has to be dimensioned such that the permissible coupling
load is not exceeded during any operating condition. For this purpose the actual loads have to be compared to the permissible parameters of
the coupling. The torques specified TKN /TK max. refer to the couplings. The shaft-hub-connection has to be investigated by the customer.

1. Drives without periodical torsional vibrations 2. Drives with periodical torsional vibrations
e. g. centrifugal pumps, fans, screw compressors, etc.The coupling For drives subject to high torsional vibrations, e.g. diesel engines,
is selected taking into account the rated torques TKN and maximum piston compressors, piston pumps, generators, etc., it is necessary to
torque TK max. perform a torsional vibration calculation to ensure a safe operation. If
requested, we perform the torsional vibration calculation and the
1.1 Load produced by rated torque coupling selection in our company. For necessary details please
Taking into consideration the am- TN [Nm] = 9550  P [kW] see KTR standard 20004.
n [1/min]
bient temperature, the permissible
rated torque TKN of the coupling TKN ≥ TN  St 2.1 Load produced by rated torque
has to correspond at least to the Taking into account the ambi- TKN ≥ TN  St
rated torque TN.of the machine. ent temperature, the permissible
rated torque T KN of the coupling has to correspond at
1.2 Load produced by torque shocks least to the rated torque TN of the machine.
The permissible maximum torque of T
K max. ≥ TS  Sz  St + TN  St
the coupling has to correspond at 2.2 Passing through the resonance
least to the total of peak torque TS Taking into account the tempera- TK max. ≥ TS  St
and the rated torque TN of the ma- Antriebsseitiger Stoß ture, the peak torque TS arising
TS = TAS  MA  SA
chine, taking into account the shock when the resonance range is run through must not exceed the ma-
frequency SZ and the ambient tem- Lastseitiger Stoß ximum torque TKmax of the coupling.
TS = TLS  ML  SL
perature St. This applies in case
if the rated torque TN of the ma- JL
2.3 Load produced by vibratory torque shocks
MA =
chine is at the same time subject to (JA + JL) Taking into account the ambient TKW ≥ TW  St
shocks. Knowing the mass distribu- ML = JA temperature, the permissible vib-
(JA + JL) PKW ≥ PW
tion, shock direction and shock mode, ratory torque TKW of the coup-
the peak torque TS can be calcula- ling must not be exceeded by the
ted. For drives with A. C.-motors with high masses on the load side we highest periodical vibratory torque TW with operating speed. For
would recommend to calculate the peak driving torque with the higher operating frequencies f > 10 Hz, the heat produced by
help of our simulation programme. damping in the elastomer part is considered as damping power
PW. The maxium allowed damping power PKW of the coupling
depends on the ambient tempreture and may not be exceeded by
the existingdamping power PW of the drive. The damping power of
torsionally rigid couplings is of miner importance.

Coupling selection for BoWex® FLE-PA and MONOLASTIC®

1. Loading by rated torque
For drives with small mass moments on the load side (hydrostatic drives) the selection can be simplified using operating factors.
TKN ≥ TN  SB  St

Please note:
For drives subject to high torsional vibrations, e.g. diesel engines, piston compressors, piston pumps, generators, etc., it is necessary to per-
form a torsional vibration calculation to ensure a safe operation. This applies in particular with large mass moments of inertia on the load side. If
requested, we perform the torsional vibration calculation and the coupling selection in our company.

12 For continuously updated data please refer to our online catalogue at www.ktr.com
coupling selection according to
DIN 740 part II

Example of calculation
Requested: Axial-plug in coupling damping vibrations  ROTEX®
Application: Connection of IEC standard motor and screw compressor
 Coupling selection following page 12, item 1: Drives without periodical torsional vibrations

Given: Details of driving side

Rotary current motor: Size 315 L  SA =1.8 (see page 11)
Motor output: P = 160 kW
Speed: n = 1485 1/min
Moment of inertia of driving side: JMotor = 2.9 kgm2
Starting frequency: 6 times per hour  SZ =1.0 (see page 11)
Ambient temperature: + 70 °C  St =1.45 using T-PUR® (see page 11)
Peak torque (starting torque) TAS = 2  TAN

Given: Details of load side

Screw compressor
Rated torque of load side: TLN = 930 Nm
Moment of inertia of load side: Jcompressor = 6.8 kgm2

Calculation

1.1 Loading by rated torque

zz Rated torque of drive TAN
TAN = 9550  P [kW]  9550  160 kW = 1029 Nm
n [1/min] 1485 1/min

zz Rated torque of load side TLN

TKN ≥ TLN  St  930 Nm  1.45 = 1348.5 Nm  TKN ≥ 1348,5 Nm

zz Coupling selection
ROTEX® Size 90 - spider 92 Shore A with: Mass moments of inertia of page 59
TKN = 2400 Nm JKA = 0,0673 kgm²
TK max. = 4800 Nm JKL = 0,0673 kgm²

1.2 Loading by torque shocks

zz Shock on driving side without load torque being overlapping
TK max. ≥ TS  SZ  St + TN  St  TN = 0
Shock on driving side TS
= TAS  MA  SA
MA = JL  6,8673 kgm²  MA = = 0,7
(JA + JL) 2,9673 kgm² + 6,8673 kgm²

JA= JMotor + JKA  2,9 kgm² + 0,0673 kgm²  JA= 2,9673 kgm²

JL= Jcompressor + JKL  6,8 kgm² + 0,0673 kgm²  JL=6,8673 kgm²

Starting torque TAS = 2  TAN  2  1029 Nm= 2058 Nm

Shock on driving side TS


= 2058  0,7  1,8 = 2593,1 Nm

 TK max. ≥ 2593,1 Nm  1  1,45 = 3760 Nm

TK max. mit 4800 Nm ≥ 3760 Nm 

Result
The coupling is sufficiently dimensioned.
Please note:
The shaft-hub-connection has to be verified by the customer separately.

For continuously updated data please refer to our online catalogue at www.ktr.com 13
Coupling selection based on
operating factors

Coupling types
Lamina couplings
RADEX®-N Steel lamina coupling (see page 164)
–– Torsionally rigid
–– Backlash-free
–– Maintenance-free
–– Compact dimensions
–– Single-cardanic or double-cardanic
–– All-steel
RIGIFLEX®-N Steel lamina coupling (see page 164)
–– Torsionally rigid
–– Backlash-free
–– Maintenance-free
–– Double-cardanic
–– All-steel
–– Coupling in accordance with API 610, API 671 optionally
RIGIFLEX®-HP High-performance steel lamina coupling (see page 164)
–– Torsionally rigid
–– Backlash-free
–– Maintenance-free
–– Double-cardanic
–– All-steel
–– Coupling design as per API 671

Pin & bush couplings

REVOLEX® KX-D Flexible pin & bush coupling (see page 73)

–– Flexible
–– Maintenance-free
–– Fail-safe
–– Compact dimensions
–– Axial plug-in

Gear couplings
GEARex® All-steel gear coupling (see page 82)
–– Torsionally rigid
–– Fail-safe
–– Compact dimensions
–– Double-cardanic
–– High power density
–– All-steel

Terminology of coupling selection

Description Symbol Definition or explanation Description Symbol Definition or explanation
Rated torque of cou- TKN Torque that can be continuously transmitted over the Engine power [kW] P Rated power of drive
pling [Nm] entire permissible speed range. Speed [rpm] n Rated speed of engine
Maximum torque of TK max. Torque that can be transmitted as dynamic load ≥ 105 Starting factor SZ Factor taking into account load caused by starting
coupling [Nm] times or 5 x 104 as vibratory load, respectively, over the frequency per hour
entire operating life of the coupling
Direction factor SR Considers the torsional direction
Vibratory torque of TKW Torque amplitude of the permissible periodical torque
coupling [Nm] fluctuation with a frequency of 10 Hz and a basic load Temperature factor St Temperature factor – Factor considering the lower
of TKN or dynamic load up to TKN, respectively loading capacity particularly in case of increased
temperatures.
Rated torque of machine TN Stationary rated torque on the coupling
[Nm] Operating factor SB Factor considering the different demands on the
coupling dependent on the application.
Peak torque of machine TS Peak torque on the coupling
[Nm]

14 For continuously updated data please refer to our online catalogue at www.ktr.com
Coupling selection based on
operating factors

Factors
Temperature factor St
–30 °C
≤ +40 °C ≤ +60 °C ≤ +80 °C ≤ +150 °C ≤ +200 °C ≤ +230 °C ≤ +270 °C
+30 °C
REVOLEX® KX-D 1,0 1,2 1,4 1,8 – – – –
GEARex® 1,0 1,0 1,0 1,0 – – – –
RADEX®-N, RIGIFLEX®-N, RIGIFLEX®-HP 1,0 1,0 1,0 1,0 1,0 1,10 1,25 1,43

Starting factor SZ Direction factor SR

Starting frequency per hour <10 <25 <50 Same torsional direction 1,0
SZ 1,0 1,2 1,4 Alternating torsional direction 1,7

Operating factor SB
Application Application
Construction machines Mixers
Manoeuvre winches 1,50 – 2,00 Constant density 1,75 – 2,25
Swing gears 1,50 – 2,00 Variable density 2,00 – 2,50
Miscellaneous winches 1,50 – 2,00 Grinders
Filters, cable winches 1,75 – 2,25 Centrifugal mills 1,75 – 2,00
Multi-bucket excavators 1,75 – 2,25 Beater mills 1,75 – 2,00
Running gears (caterpillars) 1,75 – 2,25 Autogenous mills 1,75 – 2,00
Impellers 1,75 – 2,25 Hammer and ball mills 2,00 – 2,50
Cutter drives 2,00 – 2,50 Food industry
Elevators 1,50 – 2,00 Sugarcane harvesters 1,25 – 1,50
Conveyors Sugar-beet harvesters 1,25 – 1,50
Bucket elevators 1,50 – 2,00 Sugar-beet washing 1,25 – 1,50
Elevators 1,75 – 2,25 Kneading machines 1,75 – 2,00
Hauling winches 1,50 – 2,00 Sugarcane breakers 1,75 – 2,00
Apron conveyors 1,25 – 1,75 Sugarcane mills 1,75 – 2,00
Rubber belt conveyors (bulk) 1,25 – 1,75 Oil industry
Boom plate bucket conveyors 1,25 – 1,75 Filter presses for paraffin 1,50 – 2,00
Rotary conveyors 1,50 – 1,75 Rotary furnaces 1,75 – 2,00
Steel plate conveyors 1,50 – 1,75 Paper machines
Worm conveyors 1,25 – 1,50 Couch rolls 1,75 – 2,25
Steel belt conveyors 1,75 – 2,00 Calanders 1,75 – 2,25
Conveyors 1,75 – 2,00 Wet presses 1,75 – 2,25
Rubber belt conveyor (bulk) 1,75 – 2,00 Pumps
Inclined lifts 1,75 – 2,00 Radial pumps 1,25 – 1,75
Shaking slides 2,00 – 2,25 Centrifugal pumps (light liquid) 1,50 – 2,00
Generators Centrifugal pumps (viscous liquid) 2,25 – 1,50
Frequency converters 1,75 – 2,00 Gear and vane pumps 1,50 – 1,75
Generators 1,50 – 2,00 Piston pumps, plunger pumps and press pumps 2,00 – 2,50
Rubber & nylon industry Agitators
Rubber calenders and rolling mills 1,25 – 2,00 Light liquid 1,25 – 1,50
Mixers 1,25 – 2,00 Viscous liquid 1,50 – 1,75
Extruders 1,25 – 2,00 Liquid with constant density 1,25 – 1,50
Lifters/cranes Liquid with variable density 1,50 – 2,00
Bridge cranes for steel industry 2,00 – 2,25 Textile industry
Cranes (heavy load operation) 2,00 – 2,25 Winders 1,25 – 1,75
Running gears 1,75 – 2,25 Printing and dyeing machines 1,25 – 1,75
Lifting gears 1,75 – 2,25 Shredders 1,50 – 2,00
Woodworking machinery Fans, ventilators and blowers
Planing machines 1,50 – 1,75 Light-weight fans 1,25 – 1,75
Barking machines 1,75 – 2,00 Large blowers 1,75 – 2,50
Saw frames 1,75 – 2,00 Centrifugal fans 1,25 –1,50
Compressors Industrial fans 1,25 –1,50
Centrifugal compressors 1,50 – 2,00 Rotary blowers 1,25 –1,75
Rotary compressors 1,50 – 2,00 Fans (axial / radial) 1,25 –1,75
Turbo compressors 2,00 – 2,50 Fans for cooling towers 1,50 – 2,00
Piston compressors 2,50 – 3,00 Wastewater treatment plants
Metal industry Rakes 1,25 – 1,50
Wire pulls 1,25 – 1,50 Worm pumps 1,25 – 1,50
Winders 1,25 – 1,50 Concentrators 1,25 – 1,50
Winding drums 1,50 – 2,00 Mixers 1,25 – 1,75
Wire drawing machines 2,00 – 2,50 Aerators 1,75 – 2,00
Plate shears 2,00 – 2,50 Machine tools
Block pushers 2,00 – 2,50 Scissors 1,50 – 2,00
Blooming and slabbing 2,00 – 2,50 Dressing rollers 1,50 – 2,00
De-scalers 2,00 – 2,50 Bending machines 1,50 – 2,00
Hot-rolling mill 2,00 – 2,50 Hole punching machines 1,75 – 2,50
Cold rolling mills 2,00 – 2,50 Levelling machines 1,75 – 2,50
Billet shears 2,00 – 2,50 Hammers 1,75 – 2,50
Plugging machines 2,00 – 2,50 Presses 1,75 – 2,50
Continuous casting machines 2,00 – 2,50 Forging presses 1,75 – 2,50
Shifting devices 2,00 – 2,50 Other
Application 2,00 – 2,50 Equipment for transport of persons 2,00 – 2,50
Roller tables (heavy-weight) 2,00 – 2,50 Rock crushers 2,50 – 3,00
Mixers Rolling mill drives 2,00 – 2,50
Constant density 1,75 – 2,25
Variable density 2,00 – 2,50

For continuously updated data please refer to our online catalogue at www.ktr.com 15
Coupling selection based on
operating factors

Coupling selection
The coupling selection is based on operating factors. The coupling has to be dimensioned in a way that the permissible coupling load is
not exceeded with any operating condition. For this purpose the actual loads have to be compared to the permissible parameters of the
coupling. The shaft-hub-connection has to be investigated by the customer.

1. Drives without periodical torsional vibrations 2. Drives with periodical torsional vibrations
For example centrifugal pumps, fans, screw compressors, etc. The For drives subject to dangerous torsional vibrations e. g. diesel
coupling selection requires that the rated torque TKN and the maxi- ­engines, piston compressors, piston pumps, generators, etc. it is
mum torque TKmax are reveiwed. necessary to perform a torsional vibration calculation to ensure a
correct coupling selection. KTR is able to perform such a torsional
1.1 Loading by rated torque vibration calculation and coupling selection in house. For necessary
Taking into account the operating TN [Nm] = 9550  P [kW] details please see KTR standard 20004.
n [1/min]
factor SB, the temperature factor
St and the directional factor SR, TKN ≥ TN  SB  St  SR
the permissible rated torque must
be at least as big as the the rated torque TN of the machine.

1.2 Loading by torque shocks

The permissible maximum torque TK max. ≥ (TN + TS)  SZ  St  SR
of TKmax of the coupling must be
at least as big as the sum of the peak torque TS and the rated torque
TN of the machine, taking into account all relevant service factors.
This applies in case that the rated trque of the machine is super­
imposed by a shock. For drives with A. C. motors and big masses on
the load side we would recommend to do a joint calculation of the
peak starting torque by our simulation programm.

16 For continuously updated data please refer to our online catalogue at www.ktr.com
Coupling selection based on
operating factors

Example of calculation
Requested: Double-cardanic steel lamina coupling for bridging a shaft distance dimension  RADEX®-N
Application: Connection of IEC standard motor and radial pump
• Coupling selection following page 16, item 1: Drives without periodical torsional vibrations

Given: Details of driving side

Rotary current motor: Size 315 L
Motor output: P = 200 kW
Speed: n = 1500 1/min
Starting frequency: 6 times per hour  SZ =1.0 (see page 15)
Ambient temperature: + 65 °C  St =1.0 (see page 15)
Peak torque (starting torque) TAS = 2  TAN
Diameter of motor shaft 80 mm

Given: Details of load side

Radial pump  SB =1.5 (see page 15)
Rated torque of load side: TLN = 930 Nm
Diameter of pump shaft 75 mm
Distance dimension of motor shaft - pump shaft
= 250 mm
(DBSE)
Direction of torque same  SR =1.0 (see page 15)

Calculation

1.1 Loading by rated torque

zz Rated torque of drive TAN
TAN = 9550  P [kW]  9550  200 kW = 1273 Nm
n [1/min] 1500 1/min

zz Load produced by rated torque

TKN ≥ TAN  SB  St  SR  1273 Nm  1,5  1  1= 1348,5 Nm  TKN ≥ 1909,5 Nm

1.2 Loading by torque shocks

zz Shock on driving side without load torque being overlapping
TK max. ≥ (TN + TS)  SZ  St  SR  TN = 0

Starting torque TAS = 2  TAN  2  930 Nm= 1860 Nm

 TK max. ≥ 1860 Nm  1  1  1 = 1860 Nm

zz Coupling selection

TKN = 2400 Nm
TK max. = 4800 Nm

Result
The coupling is sufficiently dimensioned.
Please note:
The shaft-hub-connection has to be verified by the customer separately.

For continuously updated data please refer to our online catalogue at www.ktr.com 17
Coupling selection acc. to
DIN 740 part II with specific factors

Coupling types
Backlash-free servo couplings
ROTEX® GS Backlash-free, flexible jaw coupling (see page 116)
–– Backlash-free and flexible
–– Maintenance-free
–– Fail-safe
–– Compact dimensions, high power density
–– Single-cardanic or double-cardanic
–– Axial plug-in
–– High speeds
TOOLFLEX® Backlash-free, torsionally rigid metal bellow-type coupling (see page 116)
–– Backlash-free and torsionally rigid
–– Maintenance-free
–– Shear type
–– Compact dimensions
–– Double-cardanic
–– Axial plug-in (as an option)
–– All-steel
RADEX®-NC Backlash-free, torsionally rigid servo lamina coupling (see page 116)

–– Backlash-free and torsionally rigid

–– Maintenance-free
–– Compact dimensions
–– Single-cardanic or double-cardanic
–– All-steel

COUNTEX® Backlash-free, torsionally rigid shaft encoder coupling (see page 116)

–– Backlash-free and torsionally rigid

–– Maintenance-free
–– Compact dimensions
–– Double-cardanic
–– Axial plug-in

Terminology of coupling selection

Description Symbol Definition or explanation Description Symbol Definition or explanation
Rated torque of cou- TKN Torque which can be transmitted continuously over the Rotational inertia coef- MA Factor taking into account the mass distribution with
pling [Nm] entire permissible speed range, taking into account ficient of driving side shocks and vibrations produced on the driving or
the factors. Rotational inertia coef- ML load side.
Maximum torque of TK max. Torque which can be transmitted over the entire ficient of load side
coupling [Nm] service life of the coupling as dynamic load ≥ 105 or as Mass moment of inertia JA Total of moments of inertia existing on the driving or
alternating load 5 · 104 taking into account the factors. of driving side[kgm²] load side referring to the coupling speed.
Rated torque of machine TN Stationary rated torque on the coupling Mass moment of inertia JL
[Nm] of load side [kgm²]
Rated torque of driving TAN Constantly occuring driving torque as per the data Mass moment of inertia JKA Mass mom. of inertia of the coupl. half on the drive
side [Nm] indicated by the motor manufacturer of coupling [kgm²] side
Peak torque [Nm] TS Peak torque on the coupling JKL Mass mom. of inertia of the coupl. half on the load side
Mass moment of inertia Mass moment of inertia of the motor/mass moment
JMot/JSp/
[kgm²] of inertia of the spindle/mass moment of inertia of the
Peak torque of driving TAS Peak torque with torque shock on driving side, e. g. JHS
main spindle
side [Nm] starting torque of the servo motor as per the data
indicated by the motor manufacturer. Shock factor on driving SA Factor taking into account the shocks arising depend-
side ing on the application (e. g. starting shocks) With
Peak torque of load TLS Peak torque with torque shock on load side, e. g.
Shock factor on load SL positioning drives the additional load is considered by
side [Nm] braking
side the starting frequency per hour.
Screw tightening torque TA Screw tightening torque
[Nm] Temperature factor St Temperature factor - Factor considering the lower
loading capacity or larger deformation of an elastomer
Friction torque [Nm] TR Torque that can be transmitted through the frictionally
part under load particularly with increased tempera-
engaged shaft-hub-connection
tures.
Operating factor SB Factor considering the different demands on the
coupling dependent on the application.

18 For continuously updated data please refer to our online catalogue at www.ktr.com
Coupling selection acc. to
DIN 740 part II with specific factors

Factors
Temperature factor St
-20 °C /
-50 °C -40 °C -30 °C ≤ +40 °C ≤ +50 °C ≤ +60 °C ≤ +70 °C ≤ +80 °C ≤ +90 °C ≤ +100 °C ≤ +110 °C ≤ +120 °C ≤ +200 °C
+30 °C
ROTEX® GS
Polyurethan 80 Sh-A-GS 1,0 1,0 1,0 1,0 1,2 1,3 1,4 1,55 1,8 – – – – –
Polyurethan 92 Sh-A-GS – 1,0 1,0 1,0 1,2 1,3 1,4 1,55 1,8 2,2 – – – –
Polyurethan 98 Sh-A-GS – – 1,0 1,0 1,2 1,3 1,4 1,55 1,8 2,2 – – – –
Polyurethan 64 Sh-D-GS – – – 1,0 1,2 1,3 1,4 1,55 1,8 2,2 3,0 – – –
Polyurethan 72 Sh-D-GS – – – 1,0 1,2 1,3 1,4 1,55 1,8 2,2 3,0 – – –
Hytrel 64 Sh-D-H-GS 1,0 1,0 1,0 1,0 1,2 1,3 1,4 1,5 1,6 1,8 2,0 2,3 2,8 –
Hytrel 72 Sh-D-H-GS 1,0 1,0 1,0 1,0 1,2 1,3 1,4 1,5 1,6 1,8 2,0 2,3 2,8 –
TOOLFLEX®
Size 5 to 12 – – 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 – – –
Size 16 to 65 – – 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,1
RADEX-NC®
EK and DK – – 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,1

Operating factor SB Shock factor SA/SL

ROTEX® GS* Main spindle drive
Backlash-free drives Moderate shocks 1,0
Main Average shocks 1,4
spindle drive 2,0 – 5,0
Heavy shocks 1,8
of machine tool
Positioning drives Positioning drive 3)
Ball screw drive/toothed belt drive 3,0 – 5,0 < 60 1,0
i3–≤5 8,0 ≥60 – <300 1,4
Gearbox i >5 – ≤ 7 5,0 ≥300 1,8
i >7 3,0
Servohydraulic drives
With pulsating load 1) 1,0 – 1,2
With alternating load 2) 1,3 – 1,5
TOOLFLEX®, RADEX®-NC
Uniform motion 1,5
Nonuniform motion 2,0
Shocking motion 2,5 – 4,0
Für Antriebe an Werkzeugmaschinen (Servomotoren) sind Werte von 1,5 – 2,0 einzusetzen

*When using the spider 64 Sh-D-GS or 72 Sh-D-GS a factor of at least 4 or steel hubs have to be considered.
1)
With pulsating load the use of aluminium is permissible.
2)
With alternating load please make use of steel hubs.
3)
Starts per minute
Shaft encoder drives: Subject to the low torques to be transmitted the coupling size for shaft encoder drives is selected according to the shaft diameters to be connected.

Coupling selection
The coupling selection of the backlash-free servo couplings is based on DIN 740 part 2, but with specific factors. The coupling has to be
dimensioned in a way that the permissible coupling load is not exceeded during any operating condition. For this purpose the actual loads
have to be compared to the permissible parameters of the coupling. The shaft-hub-connection has to be investigated by the customer.
The size of the coupling must be selected so that the following conditions are met.

1. Backlash-free drives 2. Servohydraulic drives

TKN ≥ TN  St  SB and TKN ≥ TS  St  SB TKN ≥ TAS  St  SB
In case of a loaded torque: TKN ≥ TS  St  SB + TN  St
Taking into account the ambient temperature and the operating fac-
Taking into account the temperature factor St and the operating fac- tor, the permissible rated torque TKN of the coupling has to corre-
tor SB, the permissible rated torque TKN must be at least as big as spond at least to the peak torque of the driving side TAS.
the the rated torque TN of the machine. Furthermore the permissible
rated torque TKN has to be at least as big as the maximum driving
torque, even under the influence of the temperature factor St.
Calculation of the maximum driving torque TS:
Shock loads on driving side MA = JL
TS = TAS  MA  SA (JA + JL)
Shock loads on loaded side ML = JA
TS = TLS  ML  SL (JA + JL)

Please note:
For general applications (not backlash-free applications) please follow coupling selection according to DIN 740 part 2 (page 10 et seqq.)

For continuously updated data please refer to our online catalogue at www.ktr.com 19
Coupling selection acc. to
DIN 740 part II with specific factors

Example of calculation for positioning drives

Requested: Backlash-free coupling damping vibrations  ROTEX® GS
Application: Connecting servo motor and ball screw drive for backlash-free positioning
 Coupling selection following page 19, item 1: Backlash-free drives

Given: Details of driving side

Servo motor
Rated torque TAN: 43 Nm
Max. driving torque TAS: 144 Nm
Moment of inertia JMot: 0,0108 kgm2
Diameter of motor shaft 32 k6 without feather keyway
Ball screw
Ambient temperature: 40 °C  St = 1,2 (see page 19)
Starts per minute 60  SA = 1,0 (see page 19)

Given: Details of machine on driving side

Ball spindle JSP: 0,0038 kgm2
Spindle pitch s: 10 mm
30 k6 without feather key-
Diameter of spindle shaft:
way
Mass of slide + work piece mSl: 1030 kg
No load torque available

Required: hohe Drehsteifigkeit  SB = 4 (s. Seite 19)

Calculation
1. Backlash-free drives
zz Loading by rated torque (pre-selection) TKN ≥ TAN  St  SB  43 Nm  1,2  4  TKN ≥ 206,4 Nm

zz Coupling selection (pre-selection)

ROTEX® GS 38
Spider 98 Shore-A with clamping ring hubs 6.0 light: Mass moments of inertia (see page 130)
TKN = 325 Nm JKA = 0,000517 kgm²
TK max. = 650 Nm JKL = 0,000517 kgm²

zz Load by maximum driving torque, not including load torque

TKN ≥ TS  St  SB

Shock on driving side

 = 144 Nm  0,379  1,0  TS= 54,58 Nm
TS = TAS  MA  SA

MA = JL = 0,006917 kgm²  MA = 0,379

(JA + JL) (0,011317 kgm² + 0,006917 kgm²)

JA= JMot + JKL  0,0108 kgm² + 0,000517 kgm²  JA= 0,011317 kgm²

JL= JSp + JSl + JKL  0,0038 kgm² + 0,0026 kgm² + 0,000517 kgm²  JL= 0,006917 kgm²

( 2 s π ) ( 20,01
2 2

π)
JSl =mSl   1030 kg   JSl = 0,0026 kgm²

 TKN ≥ 54,58 Nm  1,2  4  TKN ≥ 261,9 Nm

TKN with 325 Nm ≥ 261,9 Nm

zz Review of shaft-hub-connection: Friction torque for clamping ring hubs type 6.0 light
The coupling has to be dimensioned such that the permissible friction torque is not exceeded during any operating condition.
TR ≥ TAS values TR see page 130
Friction torque of ROTEX® GS 38 clamping ring hub 6.0 light Ø30 H7/k6 TR = 443 Nm > 144 Nm

Result
The coupling is sufficiently dimensioned.

20 For continuously updated data please refer to our online catalogue at www.ktr.com
Coupling selection acc. to
DIN 740 part II with specific factors

Example of calculation for main spindle drives

Requested: Backlash-free, axial plug-in coupling for high speeds  ROTEX® GS
Application: Connecting servo motor and and main spindle in a grinding machine
 Coupling selection following page 19, item 1: Backlash-free drives

Given: Details of driving side

Servo motor
Rated torque with operation TAN: 154 Nm
Max. driving torque TAS: 190 Nm
Max. speed: 6000 1/min
Moment of inertia JMot: 0,316 kgm2
30 k6 without feather key-
Diameter of motor shaft
way

Ambient temperature: 60 °C  St = 1,4 (see page 19)

Shock factor SA: moderate shocks  SA = 1,0 (see page 19)

Given: Details of machine on driving side

Moment of inertia of load side JHS 0,1094 kgm²
30 k6 without feather key-
Diameter of main spindle shaft:
way
No load torque available

Required: no high torsion stiffness  SB = 2 (see page 19)

Calculation
1. Backlash-free drives
zz Loading by rated torque (pre-selection) TKN ≥ TAN  St  SB  154 Nm  1,4  2  TKN ≥ 431,2 Nm

zz Coupling selection (pre-selection)

ROTEX® GS 42
Spider 98 Shore-A with clamping ring hubs 6.0 light: Mass moments of inertia of page 130
TKN = 450 Nm JKA = 0,001117 kgm²
TK max. = 900 Nm JKL = 0,001117 kgm²

zz Load by maximum driving torque, not including load torque

TKN ≥ TS  St  SB

Shock on driving side

 = 144 Nm  0,376  1,0  TS= 54,14 Nm
TS = TAS  MA  SA

MA = JL = 0,191517 kgm²  MA = 0,376

(JA + JL) (0,317117 kgm² + 0,191517 kgm²)

JA= JMot + JKL  0,316 kgm² + 0,001117 kgm²  JA= 0,317117 kgm²

JL= JMS + JKL  0,1094 kgm² + 0,001117 kgm²  JL= 0,191517 kgm²

TKN ≥ 54,14 Nm  1,4  2  TKN ≥ 151,6 Nm

TKN with 450 Nm ≥ 151.6 Nm

zz Review of shaft-hub-connection: Friction torque for clamping ring hubs type 6.0 light
The coupling has to be dimensioned such that the permissible friction torque is not exceeded during any operating condition.
TR ≥ TAS values TR see page 130
Friction torque of ROTEX® GS 42 clamping ring hub 6.0 light Ø30 H7/k6 TR = 507 Nm > 190 Nm

Result
The coupling is sufficiently dimensioned.

For continuously updated data please refer to our online catalogue at www.ktr.com 21
22
Flexible jaw and pin & bush couplings

ROTEX®
Types and operating description 24

ROTEX® POLY-NORM®
Hub types 26 Technical data 61
Displacements 27 Selection of standard IEC motors 62
Standard spiders 28 Type AR, two-part 63
Special spiders 30 Type AR for taper clamping bush 64
Selection of standard IEC motors 31 Type ADR, three-part 65
Cylindrical bores and spline bores 32 Types BTA, SBA with brake drum, brake disk 66
Inch bores and taper bores 33 Type ADR-SB with brake disk
Standard type, material cast and powder metal 34 for stop brake 67
Standard type, material steel / UL / marine 36 Type AZR, standard drop-out center design coupling 68
Standard type, material aluminium 38
Standard type, material steel
with CDP coating and material stainless steel 39 POLY

POLY-NORM®
Type with taper clamping bush 40 Selection of standard IEC motors 69
Type with clamping ring hubs 41 Type PKZ, two-part and PKD, three-part 70
Type with clamping hubs 42 Type PKA, drop-out center design coupling 71
Type with flange programme 43 Displacements / elastomer sets / screws 72
Type A-H drop-out center design coupling 44
Type S-H drop-out center design coupling with SPLIT 45
hubs REVOLEX®
Type SP single-cardanic Technical data 73
shaft coupling (Non Sparking) 46 Type KX-D, material cast 74
Type SP ZS-DKM-C double-cardanic Type KX-D, material steel 75
shaft coupling (Non Sparking) 47 Type KX-D with brake disk 76
Type ZS-DKM-H double-cardanic Technical data of pins 78
shaft coupling 48 Assembly / other types 79
Type DKM double-cardanic
shaft coupling 49
Type CF, CFN, DF, DFN flange programme 50
Type ZR intermediate shaft programme 51
Type BTAN and SBAN with brake druml /
with brake disk 52
Type AFN-SB drop-out center design coupling with 54
brake disk

POLY
Type SD shiftable coupling shiftable at standstill 55
Type FNN for mounting of fan 56
Other types with clamping sets 57
Other types with torque limiters 58
Weights and mass moments of inertia 59

ROTEX® POLY-NORM® POLY REVOLEX®

REVOLEX®

23
Flexible jaw and pin & bush couplings
Types and operating description

Properties of flexible jaw and pin & bush couplings

Product ROTEX® POLY-NORM® POLY REVOLEX®

Type Torsionally flexible jaw-type coupling Torsionally flexible pin & bush
coupling
Properties
Torsionally flexible    
Damping vibrations    
Maintenance-free    
Axial plug-in    
Shear type 
Fail-safe   
Compensating for misalignment    
Types
Variant diversity very high average average high

Extensive basic programme

Extensive programme, ideal for
available from stock while Basic programme available Basic programme available
Special features customized solutions, for appli-
customized solutions can be from stock from stock
cations with high performances
realized

Industrial gearboxes, conveyor

Manifold applications, applica- Pump industry, Chemical pumps,
Applications/core industries systems, industrial fans, rope-
ble in all industries industrial gearboxes high-pressure pumps,...
ways, agitators, generators, ...

Allover machining, very good Allover machining, very good

Surface Shell surface machined Shell surface machined
dynamic properties dynamic properties

Torque range TKN [Nm]

Min. 1 40 42 3800
Max. 35.000 67.000 6.100 1.220.000
Max. circumferential speed v [m/s]
Cast EN-GJL (dynamic balancing) 35 35 35 35
Steel + cast EN-GJS (dynamic balancing) 60 60
Hub materials available
Steel (semi-finished product)
 
» customized solutions available
Cast iron (GJL)
   
» subject to mould
Nodular iron (GJS)
  
» subject to mould
Aluminium semi-finished product (Al-H)

» customized solution available
Aluminium diecast (Al-D) 
Stainless steel 
Corrosion-protected types    
Spiders / elastomers
NBR (up to size 180) NR, NBR
Material T-PUR, PA, PEEK, Hytrell, ... NBR
T-PUR (from size 200) NBR electrically insulating
Degree of hardness flexible to torsionally rigid flexible flexible flexible
Temperature range in °C, min. / max. (standard) - 50 / + 120 - 30 / + 80 - 30 / + 80 - 30 / + 80
Temperaturbereich in °C, min. / max. (Sonder) - 50 / + 250 - 30 / + 80 - 30 / + 80 - 50 / + 80

 ≈ Standard
 ≈ On request

24 For continuously updated data please refer to our online catalogue at www.ktr.com
Flexible jaw and pin & bush couplings
Types and operating description

ROTEX®
Product finder of jaw and pin & bush couplings

Product ROTEX® POLY-NORM® POLY REVOLEX®

Type Torsionally flexible jaw-type coupling Torsionally flexible pin & bush
coupling
Geometries
Design compact short short short
Mass moment of inertia low average high average
Shaft distance dimension low / average low low low
Types (extract)
Elastomers can be disassembled radially AFN, A-H, S-H, ZR, DF,
ADR, ADR-SB PKD standard
» with no need of displacing driving/driven side DNF, CF-H

POLY-NORM®
Intermediate shaft types
ZR, ZWN – – customized
» bridging larger shaft distances
Standard spacers 100 mm to 250 mm ZS-DKM-H AZR PKA customized
Shaft-to-shaft connection standard standard standard standard
Flange-to-shaft connection CF, CFN – – customized
Flange-to-flange connection
DF, DNF – – customized
» particularly short mounting lengths
Double-cardanic
» compensating for big displacements ZS-DKM-H, ZR, ZWN – – –
» lower restoring forces
Certifications/type examinations

ATEX    

UL-listed 

GOST R/ GOST TR    

DNV/GL  

ABS  

POLY
Bureau Veritas  

LR  

RS CLASS  

CCS  

 ≈ Standard
 ≈ On request
REVOLEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 25
ROTEX®
Flexible jaw couplings

Hub types
Due to the numerous applications of ROTEX® for many different applications and mounting situations, this coupling system is available with various hub
types. These types mainly differ in that they offer either positive or frictionally engaged connections, but mounting situations like, for example, gear shafts
with integrated transmission cams or similar applications are covered, too.

Type 1.0 hub Type 2.0 clamping hub

with feather keyway and setscrew single slotted without feather keyway
Positive locking power transmission, permissible torque Frictionally engaged, backlash-free shaft-hub-connection-.
depending on the permissible surface pressure. Not suitable Transmittable torques depending on bore diameter (see
for backlash-free power transmission with heavily reversing page 34). (For ATEX category 3 only)
operation.
Type 1.1 hub Type 2.1 clamping hub
without feather keyway with setscrew single slotted with feather keyway
Non-positive torque transmission for crimp and glued con- Positive locking power transmission with additional friction-
nections. (No ATEX-release) ally engaged condition. The frictional engagement avoids
or reduces the reverse backlash. Surface pressure of the
keyway connection is reduced.
Type 1.3 hub Type 2.3 clamping hub
with spline bore (see page 20) with spline bore (see page 29/30)

Type 4.2 hub Type 6.0 clamping ring hub

with CLAMPEX® clamping set KTR 250 (see ROTEX® GS series)
Frictionally engaged, backlash-free shaft-hub-connection for Integrated frictionally engaged shaft-hub-connection for the
the transmission of average torques. transmission of higher torques. Screwing on elastomer side.
For details about torque and dimensions see page 29. Suit-
able for high speeds.
Type 4.1 for CLAMPEX® clamping set KTR 200 Type 6.5 clamping ring hub
type 4.3 for CLAMPEX® clamping set KTR 400 (see ROTEX® GS series)
Frictionally engaged, backlash-free shaft-hub-connection for Design like 6.0, except for clamping screws externally. As an
the transmission of high torques. example for radial disassembly of intermediate pipe (special
design).

Type 7.5 clamping hub type DH Type 7.8 clamping hub type H
without feather keyway for without feather keyway
double-cardanic connection
Frictionally engaged, backlash-free shaft-hub-connection for Frictionally engaged, backlash-free shaft-hub-connection for
radial assembly of coupling. Transmittable torques depend- radial assembly of coupling. Transmittable torques depend-
ing on bore diameter (For ATEX category 3 only) ing on bore diameter (For ATEX category 3 only)
Type 7.6 clamping hub type DH Type 7.9 clamping hub type H
with feather keyway for with feather keyway
double-cardanic connection

Positive locking power transmission with additional friction Positive locking power transmission with additional friction
fit for radial assembly of coupling. The frictional engagement fit for radial assembly of coupling. The frictional engagement
avoids or reduces the reverse backlash. Surface pressure of avoids or reduces the reverse backlash. Surface pressure of
the keyway connection is reduced. the keyway connection is reduced.

Type 7.0 SPLIT hub Type 7.1 SPLIT hub

without feather keyway with feather keyway
Split hub made of cast iron. Frictionally engaged, backlash- Split hub made of cast iron. Positive locking power transmis-
free shaft-hub-connection-. Transmittable torques depending sion with additional frictionally engaged condition. The fric-
on bore diameter (For ATEX category 3 only) tional engagement avoids or reduces the reverse backlash.
Surface pressure of the keyway connection is reduced.

FNN hub SD hub shifting hub

Coupling hub to be connected to an attachment such as Coupling hub for separating or switching on the driving/
brake drum, brake disk and fan. driven machine with standstill of the machine. Can be com-
bined with slip ring and shiftable linkage.

TB1 hub/TB2 hub Type 3Na + 4N

Driving flange with flange type K
Coupling hub for taper clamping bushes. TB1 screwed on For type AFN and BFN:
cam side. TB2 screwed externally. With type AFN the spider can be replaced while being
assembled without having to disassemble the driving and
driven side.

Mitnehmerflansch Ausf. 3b Mitnehmerflansch Ausf. 3Na

Driving flange to connect to customer’s component. Abmes- Driving flange to connect to customer’s component. Abmes-
sungen siehe Seite 38 sungen siehe Seite 38

26 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX®
Flexible jaw couplings

ROTEX®
Displacements

Axial displacement ΔKa Radial displacement ΔKr Angular displacement ΔKw [degrees]

Lmax. = L + ∆Ka ∆Kw [mm] = Lmax – Lmin

POLY-NORM®
Displacements for spider 92 and 98 Shore-A
ROTEX® Size 14 19 24 28 38 42 48 55 65 75 90 100 110 125 140 160 180
-0,5 -0,5 -0,5 -0,7 -0,7 -1,0 -1,0 -1,0 -1,0 -1,5 -1,5 -1,5 -2,0 -2,0 -2,0 -2,5 -3,0
Max. axial displacement ∆Ka [mm]
+1,0 +1,2 +1,4 +1,5 +1,8 +2,0 +2,1 +2,2 +2,6 +3,0 3,4 +3,8 +4,2 +4,6 +5,0 +5,7 +6,4
Max. radial displacement with n=
0,17 0,20 0,22 0,25 0,28 0,32 0,36 0,38 0,42 0,48 0,50 0,52 0,55 0,60 0,62 0,64 0,68
1500 RPM ∆Kr [mm]
Max. angular displacement with n=
1,2 1,2 0,9 0,9 1,0 1,0 1,1 1,1 1,2 1,2 1,2 1,2 1,3 1,3 1,2 1,2 1,2
1500 RPM ∆Kw [degrees]
∆Kw [mm] 0,67 0,82 0,85 1,05 1,35 1,70 2,00 2,30 2,70 3,30 4,30 4,80 5,60 6,50 6,60 7,60 9,00

Displacements for spider 64 Shore-D

ROTEX® size 14 19 24 28 38 42 48 55 65 75 90 100 110 125 140 160 180
-0,5 -0,5 -0,5 -0,7 -0,7 -1,0 -1,0 -1,0 -1,0 -1,5 -1,5 -1,5 -2,0 -2,0 -2,0 -2,5 -3,0
Max. axial displacement ∆Ka [mm]
+1,0 +1,2 +1,4 +1,5 +1,8 +2,0 +2,1 +2,2 +2,6 +3,0 +3,4 +3,8 +4,2 +4,6 +5,0 +5,7 +6,4
Max. radial displacement with n=
0,11 0,13 0,15 0,18 0,21 0,23 0,25 0,27 0,30 0,34 0,36 0,37 0,40 0,43 0,45 0,46 0,49
1500 RPM ∆Kr [mm]
Max. angular displacement with n=
1,1 1,1 0,8 0,8 0,9 0,9 1,0 1,0 1,1 1,1 1,1 1,1 1,2 1,2 1,1 1,1 1,1
1500 RPM ∆Kw [degrees]
∆Kw [mm] 0,57 0,76 0,76 0,90 1,25 1,40 1,80 2,00 2,50 3,00 3,80 4,30 5,30 6,00 6,10 7,10 8,00

Displacements for spider PA, PEEK

ROTEX® size 14 19 24 28 38 42 48 55 65 75 90 100 110 125 140
-0,5 -0,5 -0,5 -0,7 -0,7 -1,0 -1,0 -1,0 -1,0 -1,5 -1,5 -1,5 -2,0 -2,0 -2,0
Max. axial displacement ∆Ka [mm]
+1,0 +1,2 +1,4 +1,5 +1,8 +2,0 +2,1 +2,2 +2,6 +3,0 +3,4 +3,8 +4,2 +4,6 +5,0
Max. radial displacement with n=
0,08 0,10 0,11 0,12 0,14 0,16 0,18 0,19 0,21 0,24 0,25 0,26 0,27 0,30 0,31
1500 RPM ∆Kr [mm]

POLY
Max. angular displacement with n=
0,60 0,45 0,45 0,50 0,50 0,55 0,55 0,55 0,60 0,60 0,60 0,60 0,65 0,65 0,60
1500 RPM ∆Kw [degrees]
∆Kw [mm] 0,33 0,41 0,42 0,52 0,67 0,85 1,00 1,15 1,35 1,65 2,15 2,40 2,80 3,25 3,30

REVOLEX®

The above-mentioned figures of displacement of flexible ROTEX® couplings are standard values taking into account the load of the coupling
up to the rated torque TKN and an operating speed n = 1500 rpm along with an ambient temperature of + 30° C.
The displacement figures may only be used one by one - if they appear simultaneously, they must be limited in proportion. Care should
be taken to maintain the distance dimension E accurately in order to allow for axial clearance of the coupling while in operation. Detailed
mounting instructions are shown on our homepage (www.ktr.com).

For continuously updated data please refer to our online catalogue at www.ktr.com 27
ROTEX®
Flexible jaw couplings

Properties of standard spiders

Spider type (Shore hardness) 92 Shore-A (T-PUR®) DZ 92 Shore-A (T-PUR®) 92 Shore-A

T-PU R®
Size 14 to 180 100 to 180 14 to 90
Material T-PUR® Polyurethane (PUR)
Permissible temperature range
Permanent temperature -50 °C to +120 °C -40 °C to +90 °C
Short-term temperature -50 °C to +150 °C -50 °C to +120 °C

–– significantly higher service life expectancy

–– very good temperature resistance
–– good damping, average elasticity
Properties –– improved damping of vibrations
–– suitable for all hub materials
–– good damping, average elasticity
–– suitable for all hub materials

Spider type (Shore hardness) 98 Shore-A (T-PUR®) 1) DZ 98 Shore-A (T-PUR®) 98 Shore-A 1)

T-PUR®
Size 14 to 180 100 to 180 14 to 90
Material T-PUR® Polyurethane (PUR)
Permissible temperature range
Permanent temperature -50 °C to +120 °C -30 °C to +90 °C
Short-term temperature -50 °C to +150 °C -40 °C to +120 °C

–– significantly higher service life expectancy

–– very good temperature resistance
–– transmission of high torques with average damping
Properties –– improved damping of vibrations
–– recommended hub material: steel, GJL and GJS
–– transmission of high torques with average damping
–– recommended hub material: steel, GJL and GJS

Spider type (Shore hardness) 64 Shore-D (T-PUR®) DZ 64 Shore-D (T-PUR®) 64 Shore-D

T-PUR®
Size 14 to 180 100 to 180 14 to 90
Material T-PUR® Polyurethane (PUR)
Permissible temperature range
Permanent temperature -50 °C to +120 °C -30 °C to +110 °C
Short-term temperature -50 °C to +150 °C -30 °C to +130 °C

–– significantly higher service life expectancy

–– transmission of very high torques with low damping
–– very good temperature resistance
–– suitable to shift critical speeds
Properties –– improved damping of vibrations
–– resistant to hydrolysis
–– transmission of very high torques with low damping
–– recommended hub material: steel and GJS
–– recommended hub material: steel and GJS

ROTEX® 14 ROTEX® 19 ROTEX® 24 - 65 ROTEX® 75 - 160 ROTEX® 180 ROTEX® DZ 100 - 160 ROTEX® DZ 180

28 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX®
Flexible jaw couplings

ROTEX®
Technical data of standard spiders
92 Shore-A spider made of T-PUR® and PUR
Max. speed Twist angle φ with Torque [Nm] Torsion spring stiffness C dyn. [Nm/rad]
Damping
ROTEX® V=35 m/s power Relative Resonance
V=40 m/s Rated Max Vibratory
size casted TKN TK max PKW damping ψ factor VR 1.0 TKN 0.75 TKN 0.5 TKN 0.25 TKN
steel (TKN) (TK max) (TKW)
material [W] 1)

14 22200 25400 6,4° 10° 7,5 15 2,0 – 0,38x103 0,31x103 0,24x103 0,14x103
19 16700 19000 10 20 2,6 4,8 1,28x103 1,05x103 0,80x103 0,47x103
24 12100 13800 35 70 9,1 6,6 4,86x103 3,98x103 3,01x103 1,79x103
28 10100 11500 95 190 25 8,4 10,90x103 8,94x103 6,76x103 4,01x103
38 8300 9500 190 380 49 10,2 21,05x103 17,26x103 13,05x103 7,74x103
42 7000 8000 265 530 69 12,0 23,74x103 19,47x103 14,72x103 8,73x103
48 6350 7250 310 620 81 13,8 36,70x103 30,09x103 22,75x103 13,49x103
55 5550 6350 410 820 107 15,6 50,72x103 41,59x103 31,45x103 18,64x103
0,80 7,90
65 4950 5650 3,2° 5° 625 1250 163 18,0 97,13x103 79,65x103 60,22x103 35,70x103
75 4150 4750 1280 2560 333 21,6 113,32x103 92,92x103 70,26x103 41,65x103
90 3300 3800 2400 4800 624 30,0 190,09x103 155,87x103 117,86x103 69,86x103
100 2950 3350 3300 6600 858 36,0 253,08x103 207,53x103 156,91x103 93,01x103
110 2600 2950 4800 9600 1248 42,0 311,61x103 255,52x103 193,20x103 114,52x103
125 2300 2600 6650 13300 1729 48,0 474,86x103 389,39x103 294,41x103 174,51x103

POLY-NORM®
140 2050 2350 8550 17100 2223 54,6 660,49x103 541,60x103 409,50x103 242,73x103
160 1800 2050 12800 25600 3328 75,0 890,36x103 730,10x103 552,03x103 327,21x103
180 1550 1800 18650 37300 4849 78,0 2568,56x103 2106,22x103 1592,51x103 943,95x103

98 Shore-A spider made of T-PUR® and PUR

Max. speed Twist angle φ with Torque [Nm] Torsion spring stiffness C dyn. [Nm/rad]
Damping
ROTEX® V=35 m/s power Relative Resonance
V=40 m/s Rated Max Vibratory
size casted TKN TK max PKW damping ψ factor VR 1.0 TKN 0.75 TKN 0.5 TKN 0.25 TKN
steel (TKN) (TK max) (TKW)
material [W] 1)

14 22200 25400 6,4° 10° 12,5 25 3,3 – 0,56x103 0,46x103 0,35x103 0,21x103
19 16700 19000 17 34 4,4 4,8 2,92x103 2,39x103 1,81x103 1,07x103
24 12100 13800 60 120 16 6,6 9,93x103 8,14x103 6,16x103 3,65x103
28 10100 11500 160 320 42 8,4 26,77x103 21,95x103 16,60x103 9,84x103
38 8300 9500 325 650 85 10,2 48,57x103 39,83x103 30,11x103 17,85x103
42 7000 8000 450 900 117 12,0 54,50x103 44,69x103 33,79x103 20,03x103
48 6350 7250 525 1050 137 13,8 65,29x103 53,54x103 40,48x103 24,00x103
55 5550 6350 685 1370 178 15,6 94,97x103 77,88x103 58,88x103 34,90x103
0,80 7,90
65 4950 5650 3,2° 5° 940 1880 244 18,0 129,51x103 106,20x103 80,30x103 47,60x103
75 4150 4750 1920 3840 499 21,6 197,50x103 161,95x103 122,45x103 72,58x103
90 3300 3800 3600 7200 936 30,0 312,20x103 256,00x103 193,56x103 114,73x103
100 2950 3350 4950 9900 1287 36,0 383,26x103 314,27x103 237,62x103 140,85x103
110 2600 2950 7200 14400 1872 42,0 690,06x103 565,85x103 427,84x103 253,60x103
125 2300 2600 10000 20000 2600 48,0 1343,64x103 1101,79x103 833,06x103 493,79x103
140 2050 2350 12800 25600 3328 54,6 1424,58x103 1168,16x103 883,24x103 523,54x103
160 1800 2050 19200 38400 4992 75,0 2482,23x103 2035,43x103 1538,98x103 912,22x103

POLY
180 1550 1800 28000 56000 7280 78,0 3561,45x103 2920,40x103 2208,10x103 1308,84x103

64 Spider 64 Shore-D made of T-PUR® and PUR

Max. speed Twist angle φ with Torque [Nm] Torsion spring stiffness C dyn. [Nm/rad]
Damping
ROTEX® V=35 m/s power Relative Resonance
V=40 m/s Rated Max Vibratory
size casted TKN TK max PKW damping ψ factor VR 1.0 TKN 0.75 TKN 0.5 TKN 0.25 TKN
steel (TKN) (TK max) (TKW)
material [W] 1)

14 22200 25400 4,5° 7,0° 16 32 4,2 9,0 0,76x103 0,62x103 0,47x103 0,28x103
19 16700 19000 21 42 5,5 7,2 5,35x103 4,39x103 3,32x103 1,97x103
24 12100 13800 75 150 19,5 9,9 15,11x103 12,39x103 9,37x103 5,55x103
28 10100 11500 200 400 52 12,6 27,52x103 22,57x103 17,06x103 10,12x103
38 8300 9500 405 810 105 15,3 70,15x103 57,52x103 43,49x103 25,78x103
42 7000 8000 560 1120 146 18,0 79,86x103 65,49x103 49,52x103 29,35x103
48 6350 7250 655 1310 170 20,7 95,51x103 78,32x103 59,22x103 35,10x103
55 5550 6350 825 1650 215 23,4 107,92x103 88,50x103 66,91x103 39,66x103
0,75 8,50
65 4950 5650 2,5° 3,6° 1175 2350 306 27,0 151,09x103 123,90x103 93,68x103 55,53x103
75 4150 4750 2400 4800 624 32,4 248,22x103 203,54x103 153,90x103 91,22x103
90 3300 3800 4500 9000 1170 45,0 674,52x103 553,11x103 418,20x103 247,89x103
100 2950 3350 6185 12370 1608 54,0 861,17x103 706,16x103 533,93x103 316,48x103
110 2600 2950 9000 18000 2340 63,0 1138,59x103 933,64x103 705,92x103 418,43x103
125 2300 2600 12500 25000 3250 72,0 1435,38x103 1177,01x103 889,93x103 527,50x103
140 2050 2350 16000 32000 4160 81,9 1780,73x103 1460,20x103 1104,05x103 654,42x103
160 1800 2050 24000 48000 6240 112,5 3075,80x103 2522,16x103 1907,00x103 1130,36x103
REVOLEX®

180 1550 1800 35000 70000 9100 117,0 6011,30x103 4929,27x103 3727,01x103 2209,15x103

Temperature factor St
-30 °C
-50 °C +40 °C +50 °C +60 °C +70 °C +80 °C +90 °C +100 °C +110 °C +120 °C
+30 °C
T-PUR ®
1,0 1,0 1,1 1,2 1,3 1,45 1,6 1,8 2,1 2,5 3,0
PUR – 1,0 1,2 1,3 1,4 1,55 1,8 2,2 – – –

Unless explicitly specified in your order, we will supply spiders with Shore hardness 92 Sh-A T-PUR®.
For circumferential speeds exceeding V = 30 m/s, dyn. balancing is necessary For circumferential speeds exceeding V = 35 m/s only steel or nodular iron.
1)
With +30 °C

For continuously updated data please refer to our online catalogue at www.ktr.com 29
ROTEX®
Flexible jaw couplings

Technical data and properties of special spiders

Spider type PA PEEK

Material Polyamide Polyetheretherketone
Permissible temperature range
Permanent temperature -20 °C to +130 °C 1) up to +180 °C (ATEX to +160 °C)
Short-term temperature -30 °C to +150 °C 1) up to +250 °C

–– small twisting angle and high torsion spring stiffness

–– small twisting angle and high torsion spring stiffness
–– transmission of very high torques with very low damping
–– transmission of very high torques with very low damping
–– highly temperature-resistant, resistant to hydrolysis
Properties –– good resistance to chemicals 1)
–– good resistance to chemicals
–– recommended hub material: steel
–– recommended hub material: steel
–– high restoring forces with displacements
–– high restoring forces with displacements

1)
different properties depending on compound

Torques
PA, PEEK
TKN [Nm] TK max [Nm] TKW [Nm]
14 22 44 5,5
19 30 60 8,0
24 105 210 27,5
28 280 560 73
38 565 1130 147
42 785 1570 204
48 915 1830 238
55 1200 2400 312
65 1645 3290 427
75 2560 5130 667
90 6300 12600 1640
100 8650 17300 2250
110 10500 21000 2730
125 13000 26000 3380

Temperature factor St
-30 °C
-50 °C +40 °C +50 °C +60 °C +70 °C +80 °C +90 °C +100 °C +110 °C +120 °C +180 °C
+30 °C
PA – 1,0 1,15 1,25 1,4 1,6 1,9 2,3 3,0 – – –
PEEK – 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0

Installation of spider

Shaft ØdW with feather key (acc. to DIN 6885 sheet 1) protuding into the spider ØdH

Mounting dimension
ROTEX® Size 14 19 24 28 38 42 48 55 65 75 90 100 110 125 140 160 180
Distance dimension E 13 16 18 20 24 26 28 30 35 40 45 50 55 60 65 75 85
Dimension dH 10 18 27 30 38 46 51 60 68 80 100 113 127 147 165 190 220
Dimension dW 2) 7 12 20 22 28 36 40 48 55 65 80 95 100 120 135 160 185

2)
2) If the shaft diameter is smaller than or equal to dimension dH, one shaft end or both shaft ends may protude with the feather keyway in the spider.

30 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX®
Flexible jaw couplings

ROTEX®
Selection of standard IEC motors

Standard
or large hub

Large hub lengthened

POLY-NORM®
ROTEX® couplings for standard IEC motors, protection class IP 54/IP 55 (spider 92 Shore A)
A. C. motor 50 Hz Motor output n= Motor output n= Motor output n= Motor output n=
ROTEX® ROTEX® ROTEX® ROTEX®
Shaft end dxl [mm] 3000 RPM 2 poles 1500 RPM 4 poles 1000 RPM 6 poles 750 RPM 8 poles
coupling coupling coupling coupling
Size Output P Torque size Output P Torque size Output P Torque size Output P Torque size
2-pole 4, 6, 8 pole
[kW] T [Nm] [kW] T [Nm] [kW] T [Nm] [kW] T [Nm]
0,09 0,32 0,06 0,43 0,037 0,43
56 9 x 20 9 1) 9 1) 9 1)
0,12 0,41 0,09 0,64 0,045 0,52
0,18 0,62 0,12 0,88 0,06 0,7
63 11 x 23
0,25 0,86 0,18 1,3 0,09 1,1
14 14 14
0,37 1,3 0,25 1,8 0,18 2 0,09 1,4
71 14 x 30 14
0,55 1,9 0,37 2,5 0,25 2,8 0,12 1,8
0,75 2,5 0,55 3,7 0,37 3,9 0,18 2,5
80 19 x 40
1,1 3,7 0,75 5,1 19 0,55 5,8 19 0,25 3,5 19
19
90S 1,5 5 1,1 7,5 0,75 8 0,37 5,3
24 x 50
90L 2,2 7,4 1,5 10 1,1 12 0,55 7,9
2,2 15 0,75 11
100L 3 9,8 24 1,5 15 24 24
28 x 60 24 3 20 1,1 16
112M 4 13 4 27 2,2 22 1,5 21
5,5 18 5,5 36 2,2 30
132S 3 30
7,5 25
38 x 80 28 28 28 28
7,5 49 4 40 3 40
132M
5,5 55
11 36 11 72 4 54
160M 7,5 75
42 x 110 15 49 38 38 38 5,5 74 38
160L 18,5 60 15 98 11 109 7,5 100

POLY
180M 22 71 18,5 121
48 x 110
180L 22 144 15 148 11 145
42 42 42
30 97 42 30 196 18,5 181 15 198
200L 55 x 110
37 120 22 215
225S 37 240 48 18,5 244 48
55 x 110 60 x 140
225M 45 145 45 292 30 293 55 22 290 55
55
250M 60 x 140 65 x 140 55 177 48 55 356 37 361 30 392 65
65 2)
280S 75 241 75 484 65 2) 45 438 37 483 65 2)
75 x 140 55
280M 90 289 90 581 55 535 45 587
75
315S 110 353 110 707 75 75 727 75 55 712
315M 132 423 65 132 849 90 873 75 971
80 x 170
65 x 140 160 513 160 1030 110 1070 90 1170
90
315L 200 641 200 1290 132 1280 110 1420
90 90
75 160 1550 132 1710
85 x 170 250 802 250 1600 200 1930 160 2070
315
315 1010 315 2020 250 2410 100 200 2580 100
355 1140 355 2280 100
355 75 x 140 95 x 170 400 1280 90 400 2570 315 3040 110 250 3220 110
500 1600 500 3210 110 400 3850 315 4060 125
125
560 1790 560 3580 450 4330 355 4570
125
400 80 x 170 110 x 210 630 2020 630 4030 500 4810 400 5150 140
710 2270 100 710 4540 560 5390 140 450 5790
800 2560 800 5120 140 630 6060 500 6420
REVOLEX®

450 90 x 170 120 x 210 900 2880 900 5760 710 6830 560 7190 160
110 160
1000 3200 1000 6400 160 800 7690 630 8090

The coupling selection is based on an ambient temperature up to 30 °C. For the selection there is a minimum safety fac-
tor of 2 of the max. coupling torque (TKmax.). A detailed selection is possible according to catalogue, page 10 et seqq.
Drives with periodical torque curves must be selected according to DIN 740 part 2. If requested, KTR will perform the selection.
Torque T = rated torque according to Siemens catalogue M 11 · 1994/95..
1)
Dimensions see series ROTEX® GS
2)
Motor hub made of steel see page 36

For continuously updated data please refer to our online catalogue at www.ktr.com 31
ROTEX®
Flexible jaw couplings

Cylindrical bores and spline bores

Stock programme of cylindrical finish bores [mm] H7 feather keyway to DIN 6885 sheet 1 [JS9] and thread for setscrews
Un-
ROTEX®
bo-
Size/material
red Ø6 Ø8 Ø9 Ø10Ø11Ø12Ø14Ø15Ø16Ø17Ø18Ø19Ø20Ø22Ø24Ø25Ø28Ø30Ø32Ø35Ø38Ø40Ø42Ø45Ø48Ø50Ø55Ø60Ø65Ø70Ø75 Ø80 Ø85 Ø90 Ø100
Sint      
14
Al-H          
Sint       
19 AL-D             
St               
Al-D               
24
St                
Al-D              
28
St                
GJL                 
38
St            
GJL                
42
St             
GJL               
48
St            
GJL               
55
St           
GJL             
65
St          
GJL            
75
St         
GJL           
90
St        

Basic programme SAE involute spline

Spline code Size Pitch circle Pitch No. of teeth Angle Spline code Size Pitch circle Pitch No. of teeth Angle
PH-S ⁵/₈” 14,28 16/32 9 30° PS-S 1 1/₂” 35,98 12/24 17 30°
PI-S 3
/₄” 17,46 16/32 11 30° PD-S 1 1/₂” 36,51 16/32 23 30°
PB-S ⁷/₈” 20,63 16/32 13 30° PE-S 1 3/₄” 42,86 16/32 27 30°
PB-BS 1” 23,81 16/32 15 30° PK 1 3/₄” 41,275 8/16 13 30°
PJ 1 1/₈” 26,98 16/32 17 30° PT-C 1) 2” 47,625 8/16 15 30°
PC-S 1 1/₄” 29,63 12/24 14 30° PQ-C 1) 2 1/₄” 53,975 8/16 17 30°
PA-S 1 3/₈” 33,33 16/32 21 30°

Basic programme spline bores to DIN 5482

Size Pitch circle Pitch No. of teeth Profile correction Size Pitch circle Pitch No. of teeth Profile correction
A 17 x 14 14,40 1,6 9 +0,600 2) A 35 x 31 31,50 1,75 18 +0,676
A 20 x 17 19,20 1,6 12 -0,2 A 40 x 36 38,00 1,9 20 +0,049
A 25 x 22 22,40 1,6 14 +0,550 A 45 x 41 44,00 2 22 +0,181
A 28 x 25 26,25 1,75 15 +0,302 A 50 x 45 48,00 2 24 +0,181
A 30 x 27 28,00 1,75 16 +0,327

Basic programme spline bores to DIN 5480

Spline code Pitch circle Pitch No. of teeth Spline code Pitch circle Pitch No. of teeth
20 x 1 x 18 x 7H 18,0 1 18 40 x 2 x 18 x 8H 36,0 2 18
20 x 1,25 x 14 x 7H 17,5 1,25 14 45 x 2 x 21 x 7H 41,0 2 21
25 x 1,25 x 18 x 7H 22,5 1,25 18 48 x 2 x 22 x 9H 44,0 2 22
28 x 1,25 x 21 x 7H 26,25 1,25 21 50 x 2 x 24 x 8H 48,0 2 24
30 x 2 x 14 x 7H 26,0 2 14 60 x 2 x 28 x 8H 56,0 2 28
32 x 2 x 14 x 8H 28,0 2 14 75 x 3 x 24 x 7H 72,0 3 24
35 x 2 x 16 x 8H 32,0 2 16 80 x 3 x 25 x 8H 75,0 3 25

Basic programme spline bores acc. to DIN 9611 (p.t.o. shaft spline)
Size Width of keyway No. of teeth Tip circle Root circle
1 3/₈” 8,69 6 34,93 29,65
1 3/₈” – 21 34,95 34,80 3
1 3/4” 11,07 6 44,45 37,74
1 3/4” – 20 45,20 40,20

Spline clamping hubs are often adapted to the shafts of hydraulic pumps/hydraulic motors. Please ask us about the corresponding hub length of the spline code!
1)
For clamping hubs only, for plug-in hubs use code PT or PQ.
2)
Profile correction different from DIN
3)
Similar to code PA-S

32 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX®
Flexible jaw couplings

ROTEX®
Inch bores and taper bores
Stock programme inch bores
ROTEX® Size 19 24 28 38 42 48 55 65 75 90
Material
Code Ød Ød inch b+0,05 t2+0,2 St St St GJL GJL GJL GJL GJL GJL GJL
Tb 9,5+0,03 3
/₈ 3,17 11,1
DNB 11,11M7 ⁷/₁₆ 2,4 12,5
T 12,69H7 1
/₂ 4,75 14,6
Ta 12,7+0,03 1
/₂ 3,17 14,3  
DNC 13,45H7 17
/₃₂ 3,17 14,9
Do 14,29+0,03 ⁹/₁₆ 3,17 15,6
E 15,87+0,03 ⁵/₈ 3,17 17,5
Es 15,88+0,03 ⁵/₈ 4,00 17,7   
Ed 15,87+0,03 ⁵/₈ 4,75 18,1  
DNH 17,465H7 11
/₁₆ 4,75 19,6
Ad 19,02+0,03 3
/₄ 3,17 20,7
A 19,05+0,03 3
/₄ 4,78 21,3    
Gs 22,22+0,03 ⁷/₈ 4,78 24,4 
G 22,22+0,03 ⁷/₈ 4,75 24,7     
F 22,22+0,03 ⁷/₈ 6,38 25,2     
Gd 22,225M7 ⁷/₈ 4,76 24,7 

POLY-NORM®
Gf 23,80+0,03 1⁵/₁₆ 6,35 26,8
Bs 25,38+0,03 1 6,37 28,3    
H 25,40+0,03 1 4,78 27,8
Hs 25,40+0,03 1 6,35 28,7 
R 26,95+0,03 1 1/₁₆ 4,78 29,3
Sa 28,575M7 1 1/₈ 6,35 31,7  
Sb 28,58+0,03 1 1/₈ 6,35 31,5  
Sd 28,58+0,03 1 1/₈ 7,93 32,1
Js 31,75+0,03 1 1/₄ 6,35 34,6
K 31,75K7 1 1/₄ 7,93 35,5      
Ma 34,925M7 1 3/₈ 7,93 38,7 
RH1 34,93M7 1 3/₈ 9,55 37,8
Cb 36,50+0,03 1 ⁷/₁₆ 9,55 40,9
Ca 38,07+0,03 1 1/₂ 7,93 42,0
C 38,07+0,03 1 1/₂ 9,55 42,5       
Nb 41,275M7 1 ⁵/₈ 9,55 45,8  
Ls 44,42+0,03 1 3/₄ 9,55 48,8
L 44,45K7 1 3/₄ 11,11 49,4  
Lu 47,625M7 1 ⁷/₈ 12,7 53,5 
Da 49,20+0,03 1 15/₁₆ 12,7 55,0
Ds 50,77+0,03 2 12,7 56,4
D 50,80+0,03 2 12,7 55,1
Pa 53,975M7 2 1/₈ 12,7 60,0 
U 57,10+0,03 2 1/₄ 12,7 62,9
Ub 60,325M7 2 3/₈ 15,875 67,6

POLY
Wd 85,725M7 3 3/₈ 22,225 95,8
Wf 92,075M7 3 ⁵/₈ 22,225 101,9

Basic programme taper 1:8 Basic programme taper 1:5

Code d+0,05 (d2) bJS9 t2+0,1 lK Code d+0,05 (d2) bJS9 t2+0,1 lK
N/ 1 9,7 7,575 2,4+0,05 10,85 17,0 A-10 9,85 7,55 2JS9 1,0 11,5
N/ 1c 11,6 9,5375 3JS9 12,90 16,5 B-17 16,85 13,15 3JS9 1,8 18,5
N/ 1e 13,0 10,375 2,4+0,05 13,80 21,0 C-20 19,85 15,55 4JS9 2,2 21,5
N/ 1d 14,0 11,813 3JS9 15,50 17,5 Cs-22 21,95 17,65 3JS9 1,8 21,5
N/ 1b 14,3 11,8625 3,2+0,05 5,65 19,5 D-25 24,85 19,55 5JS9 2,9 26,5
N/ 2 17,287 14,287 3,2+0,05 18,24 24,0 E-30 29,85 23,55 6JS9 2,6 31,5
N/ 2a 17,287 14,287 4JS9 18,94 24,0 F-35 34,85 27,55 6JS9 2,6 36,5
N/ 2b 17,287 14,287 3JS9 18,34 24,0 G-40 39,85 32,85 6JS9 2,6 35,0
N/ 3 22,002 18,502 4JS9 23,40 28,0
N/ 4 25,463 20,963 4,78+0,05 27,83 36,0
N/ 4b 25,463 20,963 5JS9 28,23 36,0
N/ 4a 27,0 22,9375 4,78+0,05 28,80 32,5
N/ 4g 28,45 23,6375 6JS9 29,32 38,5
N/ 5 33,176 27,676 6,38+0,05 35,39 44,0
N/ 5a 33,176 27,676 7JS9 35,39 44,0

For code N/6 and N/6a keywith parallel to the taper.

REVOLEX®

Basic programme taper 1:10

Code d+0,05 (d2) bJS9 t2+0,1
lK
CX 19,95 16,75 5JS9 22,08 32
DX 24,95 20,45 6JS9 26,68 45 Taper 1:5 Taper 1:8
EX 29,75 24,75 8JS9 31,88 50 Taper 1:10

For continuously updated data please refer to our online catalogue at www.ktr.com 33
ROTEX® Standard
Flexible jaw couplings

Material cast + powder metal

For legend of pictogram please refer to flapper on the cover

120

ROTEX® Sintered steel (Sint)

Spider (part 2) 1) Dimensions [mm]
Compo- Rated torque [Nm]
Size General Thread for setscrew
nent Finish bore d
92 Sh-A 98 Sh-A L l1; l2 E b s DH dH D N G t TA [Nm]
14 1a 7,5 12,5 ungeb.: 8, 10, 11, 12, 14, 15, 16 35 11 13 10 1,5 30 10 30 M4 5 1,5 1,5
19 1a 10 17 ungeb., 14, 16, 19, 20, 22, 24 66 25 16 12 2,0 40 18 40 M5 10 2 2
24 1a 35 60 ungeb., Ø 24 78 30 18 14 2,0 56 27 40 M5 10 2 2

ROTEX® Aluminium diecast (AI-D)

Spider (part 2) 1) Dimensions [mm]
Compo- Rated torque [Nm]
Size Finish bore d (min- General Thread for setscrew
nent
92 Sh-A 98 Sh-A 64 Sh-D max) L l1; l2 E b s DH DZ dH D; D1 N G t TA [Nm]
1 6-19 32
19 10 17 — 66 25 16 12 2 41 — 18 20 M5 10 2
1a 19-24 41
1 9-24 40
24 35 60 — 78 30 18 14 2 56 — 27 24 M5 10 2
1a 22-28 56
1 10-28 48
28 95 160 — 90 35 20 15 2,5 66 — 30 28 M8 15 10
1a 28-38 66

ROTEX® Cast iron (GJL)

1 12-40 66 37
114 45
38 1a 190 325 405 38-48 24 18 3 80 — 38 78 M8 15 10
1b 12-48 164 70 62
1 14-45 75
126 50 40
42 1a 265 450 560 42-55 26 20 3 95 — 46 94 M8 20 10
1b 14-55 176 75 65
1 15-52 85
140 56 45
48 1a 310 525 655 48-62 28 21 3,5 105 — 51 104 M8 20 10
1b 15-62 188 80 69
1 20-60 98
55 410 685 825 160 65 30 22 4 120 — 60 52 M10 20 17
1a 55-74 118
65 1 625 940 1175 22-70 185 75 35 26 4,5 135 — 68 115 61 M10 20 17
75 1 1280 1920 2400 30-80 210 85 40 30 5 160 — 80 135 69 M10 25 17
90 1 2400 3600 4500 40-97 245 100 45 34 5,5 200 218 100 160 81 M12 30 40

ROTEX® Nodular iron (GJS)

100 1 3300 4950 6185 50-115 270 110 50 38 6 225 246 113 180 89 M12 30 40
110 1 4800 7200 9000 60-125 295 120 55 42 6,5 255 276 127 200 96 M16 35 80
125 1 6650 10000 12500 60-145 340 140 60 46 7 290 315 147 230 112 M16 40 80
140 1 8550 12800 16000 60-160 375 155 65 50 7,5 320 345 165 255 124 M20 45 140
160 1 12800 19200 24000 80-185 425 175 75 57 9 370 400 190 290 140 M20 50 140
180 1 18650 28000 35000 85-200 475 195 85 64 10,5 420 450 220 325 156 M20 50 140

= If no material is specified in the order, it is stipulated in the calculation/order.

1)
Maximum torque of the coupling TKmax. = rated torque of the coupling TK rated x 2. For selection see page 10 et seqq.

ROTEX® 38 GJL 92 Sh-A 1a Ø 45 1 Ø 25

Ordering
example: Finish Finish
Coupling size Material Spider hardness Component Component
bore bore

34 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX®
Components

1 2 1a

Spider
Hardness 92Sh-A, 98Sh-A,
64Sh-D
For legend of pictogram please refer to flapper on the cover
Standard from size
14 - 180

POLY-NORM®
AL-D (thread opposite to the keyway)
Elements DZ
Hardness 92Sh-A and
98Sh-A size 100 - 180
1 2 1a 1b

POLY
GJL / GJS (thread on the keyway)

1 2 1a 1b
REVOLEX®

Standard hub Spider Large hub Large hub length-

ened

For continuously updated data please refer to our online catalogue at www.ktr.com 35
ROTEX® Standard
Flexible jaw couplings

Material steel / UL / marine

For legend of pictogram please refer to flapper on the cover

120

ROTEX® Steel (St)

Spider (part 2) Dimensions [mm]
Compo- rated torque [Nm]
Size Finish bore General Thread for setscrew
nent
92 Sh-A 98 Sh-A 64 Sh-D d (min-max) L l1; l2 E b s DH dH D N G t TA [Nm]
1a 35 11
14 7,5 12,5 16 0-16 13 10 1,5 30 10 30 — M4 5 1,5
1b 50 18,5
1a 66 25
19 10 17 21 0-25 16 12 2 40 18 40 — M5 10 2
1b 90 37
1a 78 30
24 35 60 75 0-35 18 14 2 55 27 55 — M5 10 2
1b 118 50
1a 90 35
28 95 160 200 0-40 20 15 2,5 65 30 65 — M8 15 10
1b 140 60
1 114 45 70 27
38 190 325 405 0-48 24 18 3 80 38 M8 15 10
1b 164 70 80 —
1 126 50 85 28
42 265 450 560 0-55 26 20 3 95 46 M8 20 10
1b 176 75 95 —
1 140 56 95 32
48 310 525 655 0-62 28 21 3,5 105 51 M8 20 10
1b 188 80 105 —
1 160 65 110 37
55 410 685 825 0-74 30 22 4 120 60 M10 20 17
1b 210 90 120 —
1 185 75 115 47
65 625 940 1175 0-80 35 26 4,5 135 68 M10 20 17
1b 235 100 135 —
1 210 85 135 53
75 1280 1920 2400 0-95 40 30 5 160 80 M10 25 17
1b 260 110 160 —
1 245 100 160 62
90 2400 3600 4500 0-110 45 34 5,5 200 100 M12 30 40
1b 295 125 200 —

100 1 3300 4950 6185 0-115 270 110 50 38 6 225 113 150 89 M12 30 40

110 1 4800 7200 9000 0-125 295 120 55 42 6,5 255 127 200 96 M16 35 80

125 1 6650 10000 12500 60-145 340 140 60 46 7 290 147 230 112 M16 40 80

140 1 8550 12800 16000 60-160 375 155 65 50 7,5 320 165 255 124 M20 45 140

160 1 12800 19200 24000 80-185 425 175 75 57 9 370 190 290 140 M20 50 140

180 1 18650 28000 35000 85-200 475 195 85 64 10,5 420 220 325 156 M20 50 140

= If no material is specified in the order, it is stipulated in the calculation/order.

1)
Maximum torque of coupling TKmax. = rated torque of coupling TK rated x 2. For selection see page 10 et seqq.

ROTEX® 38 St 92 Sh-A 1 – Ø 45 1 – Ø 25
Ordering
example: Finish Finish
Coupling size Material Spider hardness Component Component
bore bore

36 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX®
Components

1 2 1

POLY-NORM®
Steel (thread on the keyway)

1 2 1a 1b

Standard hub Spider Large hub Large hub length-

ened

POLY
Marine programme:
Hub materials S355J2+N and 42CrMo4+QT acc. to DIN EN10204-3.1+3.2 size 75-180 available from stock.

Use in fire extinguisher pumps

ROTEX® couplings comply with the specifications of NFPA 20 standard for the installation of stationary pumps
for fire protection and on completion of the necessary permanent tests they also comply with the specifications of
UL 448A, flexible couplings and connection shafts for stationary fire extinguisher pumps.

Sizes available:

ROTEX® UL-Listed
Spider (part 2) Dimensions [mm]
Compo-
REVOLEX®

Size Material Rated torque [Nm]

nent Finish bore d (min-max) L l1; l2 E DH
92 Sh-A
42 1 St 265 18-55 126 50 26 95
55 1 St 410 24-74 160 65 30 120
65 1 St 625 24-80 185 75 35 135
75 1 St 1280 24-95 210 85 40 160
90 1 St 2400 30-110 245 100 45 200

* For complete dimensions see table on page 36

For continuously updated data please refer to our online catalogue at www.ktr.com 37
ROTEX® Standard
Flexible jaw couplings

Material aluminium

For legend of pictogram please refer to flapper on the cover

120

1 2 1
Components 2 4
3
1
4

ROTEX® Aluminium (AL-H)

Spider (part 2) Dimensions [mm]
Compo- Rated torque [Nm]
Size Finish bore General Thread for setscrew
nent
92 Sh-A GS 98 Sh-A GS d (max) L l1; l2 E b s DH dH N G t TA [Nm]
5 1 0,5 0,9 6 15 5 5 4 0,5 10 - M2 2,5 - 2
7 1 1,2 2,0 7 22 7 8 6 1,0 14 - M3 3,5 0,6 2
9 1 3,0 5,0 11 30 10 10 8 1,0 20 7,2 M4 5 1,5 10
12 1 5,0 9,0 12 34 11 12 10 1,0 25 8,5 M4 5 1,5 10
14 1 7,5 12,5 16 35 11 13 10 1,5 30 10,5 M4 5 1,5 10
19 1 10 17 24 66 25 16 12 2,0 40 18 M5 10 2 10
24 1 35 60 28 78 30 18 14 2,0 55 27 M5 10 2 17
28 1 95 160 38 90 35 20 15 2,5 65 30 M8 15 10 17
38 1 190 325 45 114 45 24 18 3,0 80 38 M8 15 10 17
42 1 265 450 55 126 50 26 20 3,0 95 46 M8 20 10 40
48 1 310 525 62 140 56 28 21 3,0 105 51 M8 20 10 40

As a standard the coupling is provided with a ROTEX®-GS spider (ROTEX® standard spider is available on request, too)

ROTEX® 19 Al-H 92 Sh-A GS 1 – Ø 15 1 – Ø 20

Ordering
example: Finish Finish
Coupling size Material Spider hardness Component Component
bore bore

38 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® Standard
Flexible jaw couplings

ROTEX®
Material steel with CDP coating, stainless steel

NEW

For legend of pictogram please refer to flapper on the cover

120

Components

POLY-NORM®
1 2 1
1 2 1a

Standard hub Spider Large hub

Steel (thread on the keyway)

ROTEX® with CDP coating1)

Spider (part 2) Dimensions [mm]
Compo- Rated torque [Nm]
Size Finish bore General Thread for setscrew
nent
92 Sh-A 98 Sh-A 64 Sh-D d (min-max) L l1; l2 E b s DH dH D N G t TA [Nm]
19 1a 10 17 21 0-25 66 25 16 12 2 40 18 40 – M5 10 2
24 1a 35 60 75 0-35 78 30 18 14 2 55 27 55 – M5 10 2
28 1a 95 160 200 0-40 90 35 20 15 2,5 65 30 65 – M8 15 10
38 1a 190 325 405 0-48 114 45 24 18 3 80 38 70 27 M8 15 10
42 1a 265 450 560 0-55 126 50 26 20 3 95 46 85 28 M8 20 10
48 1a 310 525 655 0-62 140 56 28 21 3,5 105 51 95 32 M8 20 10

POLY
55 1a 410 685 825 0-74 160 65 30 22 4 120 60 110 37 M10 20 17
65 1a 625 940 1175 0-80 185 75 35 26 4,5 135 68 115 47 M10 20 17
75 1a 1280 1920 2400 0-95 210 85 40 30 5 160 80 135 53 M10 25 17
90 1a 2400 3600 4500 0-110 245 100 45 34 5,5 200 100 160 62 M12 25 40
100 1 3300 4950 6185 0-115 270 110 50 38 6 225 113 150 89 M12 30 40
110 1 4800 7200 9000 0-125 295 120 55 42 6,5 255 127 200 96 M16 35 80
125 1 6650 10000 12500 60-145 340 140 60 46 7 290 147 230 112 M16 40 80
1)
Corrosion protection class to DIN EN ISO 12944: Min. C4, heavy - long

ROTEX® Stainless steel

Spider (part 2) Dimensions [mm]
Size Material Rated torque [Nm] Finish bore d General Thread for setscrew
92 Sh-A 98 Sh-A 64 Sh-D (min - max) L l1; l2 E b s DH dH D N G t TA [Nm]
19 1.4305 10 17 21 0-25 66 25 16 12 2 40 18 40 - M5 10 2
24 1.4571 35 60 75 0-35 78 30 18 14 2 55 27 55 - M5 10 2
28 1.4305 95 160 200 0-40 90 35 20 15 2,5 65 30 65 - M8 15 10
38 1.4571 190 325 405 0-48 114 45 24 18 3 80 38 70 27 M8 15 10
42 1.4305 265 450 560 0-55 126 50 26 20 3 95 46 85 28 M8 20 10
48 1.4571 310 525 655 0-62 140 56 28 21 3,5 105 51 95 32 M8 20 10
REVOLEX®

ROTEX® 38 St+KTL 92 Sh-A 1 – Ø 45 1 – Ø 25

Ordering
example: Finish Finish
Coupling size Material Spider hardness Component Component
bore bore

For continuously updated data please refer to our online catalogue at www.ktr.com 39
ROTEX®
Flexible jaw couplings

Taper clamping bush

For legend of pictogram please refer to flapper on the cover

120

Components
TB1 2 TB2 TB1 TB2

ROTEX® Shaft coupling for taper clamping bush

Fastening screw
Taper Dimensions [mm]
for taper bush
Size clamping
Length
bush l1;l2 E s b L N DH D1 dH Size [Inch]1) No. z TA [Nm]
[mm]
24 1008 22 18 2,0 14 62 – 55 55 27 /₄
1
13 2 5,7
28 1108 23 20 2,5 15 66 – 65 65 30 1
/₄” 13 2 5,7
38 1108 23 24 3,0 18 70 15 80 78 38 1
/₄” 13 2 5,7
42 1610 26 26 3,0 20 78 16 95 94 46 3
/₈” 16 2 20
48 1615 39 28 3,5 21 106 28 105 104 51 3
/₈” 16 2 20
55 2012 33 30 4,0 22 96 20 120 118 60 7
/16” 22 2 31
65 2012 33 35 4,5 26 101 19 135 115 68 7
/16” 22 2 31
2517 1
/2” 25 49
75 52 40 5,0 30 144 36 160 158 80 2
 3020 5
/8” 32 92
90 3020 52 45 5,5 34 149 33 200 160 100 5
/8” 32 2 92
100 3535 90 50 6 38 230 69 225 180 113 1
/2” 49 3 113
125 4545 114 60 7,0 46 288 86 290 230 147 3
/4” 49 3 192

Taper clamping bush

Size Bore dimensions d1 [mm] available; H7 fit – feather keyway acc. to DIN 6885 sheet 1.
1008 Ø10 Ø11 Ø12 Ø14 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25
1108 Ø10 Ø11 Ø12 Ø14 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø282)
1610 Ø14 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42*
1615 Ø14 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42*
2012 Ø14 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50
2517 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60
3020 Ø25 Ø28 Ø30 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø75
3535 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø75 Ø80 Ø85 Ø90
4545 Ø55 Ø60 Ø65 Ø70 Ø75 Ø80 Ø85 Ø90 Ø95 Ø100 Ø105 Ø110

 Only available for type TB 2

1)
1. BSW Thread
Coupling type TB 1/1; TB 2/2; TB 1/2 possible
Please order our separate dimension sheet (M 373054).
2)
Bores with feather keyway (flat design) acc. to DIN 6885 sheet 3

ROTEX® 38 92 Sh-A 1108 TB1 – Ø 24 TB2 – Ø 22

Ordering
example: Finish Finish
Coupling size Spider hardness Taper clamping bush Hub type Hub type
bore bore

40 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX®
Flexible jaw couplings

ROTEX®
Clamping ring hubs

For legend of pictogram please refer to flapper on the cover

120

Components

POLY-NORM®
Tack thread M1 between clamping screws

Clamping ring hubs steel

Torques [Nm] 1) Mass moment
Dimensions [mm] Clamping screws Weight per
92 Sh A 98 Sh A of inertia per hub
Size hub with max.
with max. bore
Number bore [kg]
TKN TKmax TKN TKmax DH2) dH L l1; l2 l3 E b s M TA[Nm] M1 [kgm2]
z
19 10,0 20 17 34 40 18 66 25 18 16 12 2,0 M4 6 4,1 M4 0,179 0,44 x 10-4

POLY
24 35,0 70 60 120 55 27 78 30 22 18 14 2,0 M5 4 8,5 M5 0,399 1,91 x 10-4
28 95,0 190 160 320 65 30 90 35 27 20 15 2,5 M5 8 8,5 M5 0,592 4,18 x 10-4
38 190,0 380 325 650 80 38 114 45 35 24 18 3,0 M6 8 14 M6 1,225 12,9 x 10-4
42 265 530 450 900 95 46 126 50 35 26 20 3,0 M8 4 35 M8 2,30 31,7 x 10-4
48 310 620 525 1050 105 51 140 56 41 28 21 3,5 M10 4 69 M10 3,08 52,0 x 10-4
55 375 750 685 1370 120 60 160 65 45 30 22 4,0 M10 4 69 M10 4,67 103,0 x 10-4
65 — — 940 1880 135 68 185 75 55 35 26 4,5 M12 4 120 M12 6,70 191,0 x 10-4
75 — — 1920 3840 160 80 210 85 63 40 30 5,0 M12 5 120 M12 9,90 396,8 x 10-4
90 — — 3600 4500 200 104 245 100 75 45 34 5,5 M16 5 295 M16 17,70 1136 x 10-4

Bore d1/d2 and the corresponding transmittable friction torques TR of clamping ring hub in [Nm] 1)
Size Ø10 Ø11 Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø80 Ø90 Ø95 Ø100 Ø105
19 27 32 69 84 57 94 110
24 70 87 56 97 114 116 133 192
28 108 131 207 148 253 285 315 382 330 433 503
38 208 353 395 439 531 463 603 593 689 793 776
42 358 398 483 416 547 536 625 571 704 851 865
48 616 704 899 896 1030 962 1160 1379 1222 1543
55 863 856 991 918 1119 1110 1247 1277 1672 1605 2008
65 1446 1355 1637 1635 1827 1887 2429 2368 2930
75 1710 2053 2059 2294 2384 3040 2983 3664 4293
90 3845 4249 4794 5858 5900 7036 8047 9247 9575 10845
REVOLEX®

1)
Please see coupling selection on page 10 et seqq.
2)
ØDH + 2 mm with high speeds for expansion of spider
The transmittable torques of the clamping connection consider the max. clearance with shaft fit k6 / bore H7, from Ø55 G7/m6. The torque is reduced with bigger clearance. For the stiffness
calculation of the shaft/hollow shaft see KTR standard 45510 on our homepage www.ktr.com

ROTEX® GS 24 98 Sh-A 6.0 Steel Ø24 6.0 Steel Ø20

Ordering
example: Coupling size Spider hardness Hub type Finish bore Hub type Finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 41
ROTEX®
Flexible jaw couplings

Clamping hubs

For legend of pictogram please refer to flapper on the cover

120

Components

ROTEX® 19 - 28 ROTEX® 38 - 90

ROTEX® as clamping hubs

Dimensions [mm] Screw DIN EN ISO 4762
Size
max. d L l1;l2 l Min. E b s DH D dH DK t1 t2 e M TA [Nm]
19 201) 66 25 20 16 12 2,0 40 - 18 46,0 12 — 14,5 M6 14
24 28 78 30 25 18 14 2,0 55 - 27 57,5 12 — 20,0 M6 14
28 38 90 35 30 20 15 2,5 65 - 30 73,0 142) — 25,0 M8 35
38 42 114 45 35 24 18 3,0 80 70 38 77,5 19 — 26,5 M8 35
42 50 126 50 42 26 20 3,0 95 85 46 93,5 182) — 32,0 M10 69
48 55 140 56 46 28 21 3,5 105 95 51 105,0 212) — 36,0 M12 120
55 68 160 65 50 30 22 4,0 120 110 60 119,5 26 512) 42,53) M12 120
65 70 185 75 55 35 26 4,5 135 115 68 132,5 33 612) 50,03) M12 120
75 80 210 85 65 40 30 5,0 160 135 80 158,0 36 682) 57,03) M16 295
90 90 245 100 80 45 34 5,5 200 160 100 197,0 40 802) 72,03) M20 580

Bore surface and the corresponding transmittable friction torques [Nm] of ROTEX® clamping hubs design 2.0
Size Ø8 Ø10 Ø11 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø75 Ø80 Ø85 Ø90
19 44 46 47 51 52 53 55 57 58
24 59 60 64 65 66 68 70 71 73 76 77 80
28 139 141 144 148 150 152 157 161 163 170 174 178 185 191
38 163 165 170 172 174 178 183 185 192 196 200 207 213 217 222
42 291 297 304 308 318 325 332 342 353 360 367 377 387 394
48 466 476 486 491 506 516 526 542 557 567 577 592 607 618 643
55 1185 1215 1245 1266 1286 1316 1347 1367 1417 1468 1519
65 1316 1347 1367 1387 1417 1448 1468 1519 1569 1620 1671
75 2869 2926 2983 3022 3117 3213 3309 3404 3500 3595
90 5220 5310 5400 5460 5610 5760 5910 6060 6210 6360 6510 6660
1)
With type 2.1 dmax. Ø17 mm
2)
With reduced hubs dimension t1 varies or the number of screws changes from 2-off to 1-off
3)
t1 and t2 have a different dimension e

Type 2.0 Type 2.1 Type 2.3

Clamping hub, single slot, Clamping hub, single slot, with Clamping hub with spline bore
without feather keyway feather keyway (For a selection of our pro-
gramme of spline bores please
see page 32)

ROTEX® 24 98 Sh-A 2.1 Ø 24 2.0 Ø20

Ordering
example: Coupling size Spider hardness Hub type Finish bore Hub type Finish bore

42 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® AFN and BFN
Flexible jaw couplings

ROTEX®
Flange programme

For legend of pictogram please refer to flapper on the cover

120

Components

POLY-NORM®
4N 3Na 2 3Na 4N 1a 1 2 3Na 4N
z= number

z= number
Type AFN Type BFN

ROTEX® Type AFN (No. 002) and BFN (No. 004)

Pilot Component Cyl. screws 3)

POLY
Dimensions [mm]
bored 4N DIN EN ISO 4762 - 12.9
Size
Ød;ØD; max. finish TA
1)

ØD1 bore Ød1 DH DF D4 dH l1; l2 E E1 s b l3; l4 LAFN LBFN Mxl z Pitch 2)

[Nm]
24 24 55 36 45 27 30 18 33 2,0 14 30,5 94 86 M5x16 8 10
Stock programme/basic programme on page 32

28 28 65 42 54 30 35 20 39 2,5 15 35,5 110 100 M6x20 8 8x45° 17

38 38 80 52 66 38 45 24 43 3,0 18 45,5 134 124 M8x22 8 41
See jaw couplings on page 34 to 39

42 42 95 62 80 46 50 26 48 3,0 20 51,0 150 138 M8x25 12 41

16x22,5°
48 48 105 70 90 51 56 28 50 3,5 21 57,0 164 152 M8x25 12 41
55 55 120 80 102 60 65 30 60 4,0 22 66,0 192 176 M10x30 8 8x45° 83
65 65 135 94 116 68 75 35 65 4,5 26 76,0 217 201 M10x30 12 16x22,5° 83
and 33

75 75 160 108 136 80 85 40 75 5,0 30 86,5 248 229 M12x40 15 120

90 100 200 142 172 100 100 45 82 5,5 34 101,5 285 265 M16x40 15 295
100 110 225 158 195 113 110 50 97 6,0 38 111,5 320 295 M16x50 15 295
110 125 255 178 218 127 120 55 103 6,5 42 122,0 347 321 M20x50 15 20x18° 580
125 145 290 206 252 147 140 60 116 7,0 46 142,0 400 370 M20x60 15 580
140 165 320 235 282 165 155 65 128 7,5 50 157,5 443 409 M20x60 15 580
160 190 370 270 325 190 175 75 146 9,0 57 177,5 501 463 M24x70 15 1000
180 220 420 315 375 220 195 85 159 10,5 64 198,0 555 515 M24x80 18 24x15° 1000
1)
Screw tightening torque TA [Nm].
2)
Thread in driving flange between cams.
3)
Coupling is delivered not assembled.
REVOLEX®

ROTEX® 24 AFN 92 Sh-A 4N Ø 38 4N Ø35

Ordering
example: Coupling size Type Spider hardness Component Finish bore Component Finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 43
ROTEX® A-H
Flexible jaw couplings

Drop-out center design coupling

For legend of pictogram please refer to flapper on the cover

120

Components
7.8/7.9 2 7.8/7.9

Type A-H

ROTEX® Type A-H

Max. finish bore Dimensions [mm] Cyl. screws DIN EN ISO 4762
Size
Ød [mm] L l1; l2 E b s DH D DK1 DK2 x1/x2 E1 Mxl Tightening torque TA [Nm]
19 20 66 25 16 12 2,0 40 — 46 — 17,5 31 M6x16 14
24 28 78 30 18 14 2,0 55 — 57,5 — 22,5 33 M6x20 14
28 38 90 35 20 15 2,5 65 — 73 — 25,5 39 M8x25 35
38 45 114 45 24 18 3,0 80 — 83,5 — 35,5 43 M8x30 35
50 85 — 93,5 M10x30
42 126 50 26 20 3,0 95 39 48 69
55 — 97 — M10x35
55 95 — 105 M12x35
48 140 56 28 21 3,5 105 45 50 120
60 — 108,5 — M12x40
65 110 — 119,5 M12x40
55 160 65 30 22 4,0 120 50 60 120
70 — 122 — M12x45
70 115 — 123,5 M12x40
65 185 75 35 26 4,5 135 60 65 120
80 — 132,5 — M12x45
80 135 — 147,5
75 210 85 40 30 5,0 160 67,5 75 M16x50 295
90 — 158 —
90 160 — 176
90 245 100 45 34 5,5 200 81,5 82 M20x60 580
110 — 197 —
100 1)
110 270 110 50 38 6,0 225 180 — 185,5 84 102 M16x50 295
1101) 120 295 120 55 42 6,5 255 200 — 208 90 115 M20x60 580
1251) 140 340 140 60 46 7,0 290 230 — 242,5 105 130 M24x70 1000

Please note:
With maximum bore the feather keyways are offset to each other by approx. 5°!
Hub material up to size 90: steel, from size 100: GJS

7.8= Shell clamping hub without feather key

7.9= Shell clamping hub with feather key

1)
From size 100: 4 clamping screws for each clamping hub.

ROTEX® 38 A-H 98 Sh-A 7.8 Ø 38 7.8 Ø30

Ordering
example: Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore

44 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® S-H
Flexible jaw couplings

ROTEX®
Drop-out center design coupling with SPLIT hubs

NEW

For legend of pictogram please refer to flapper on the cover

Components

POLY-NORM®
7.0/7.1 2 7.0/7.1

Displacement Displacement

Type S-H
Size 38-55

7.0/7.1 2 7.0/7.1

POLY
Displacement Displacement

Type S-H
Size 65-90

ROTEX® Type S-H

Finish bore Ød
Dimensions [mm] Cyl. screws DIN EN ISO 4762
Size [mm]
minimum maximum L l1; l2 E b s DH D1 DK N e t1 t2 G Mxl Tightening torque TA [Nm]
38 24 45 114 45 24 18 3 80 78 83,5 37 30 22,5 15 M8x30 34
42 24 55 126 50 26 20 3 95 94 97 40 30 25 M8 M10x30 67
48 24 60 140 56 28 21 3,5 105 104 108,5 45 35 28 M12x35 115
55 24 70 160 65 30 22 4 120 118 122 52 40 32,5 20 M12x40 115
24 70 115 123,5 45
65 185 75 35 26 4,5 135 61 37,5 M12x40 115
70 80 135 132,5 50 M10
REVOLEX®

40 80 135 147 51
75 210 85 40 30 5 160 69 42,5 25 M16x50 290
80 90 160 158 57
40 90 160 176 60
90 245 100 45 34 5,5 200 81 50 30 M12 M20x60 560
90 110 200 197 72

7.0= SPLIT hub without feather keyway

7.1= SPLIT hub with feather keyway

ROTEX® 38 S-H 98 Sh-A 7.1 Ø 38 7.1 Ø30

Ordering
example: Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 45
ROTEX® SP GN and EN
Flexible jaw couplings

Single-cardanic shaft coupling (Non Sparking)

NEW

For legend of pictogram please refer to flapper on the cover

120

Components
1a 1 2 1c 1a 1 2 5c

ROTEX® Standard (St) 3) ROTEX® SP Type GN (No. 080) ROTEX® SP Type EN (No. 081)
Compo- Compo- Dimensions [mm] Compo- Dimensions [mm]
Spider (part 2) 1) ROTEX® SP component 1c ROTEX® SP component 5c
Size nent steel nent nent
Rated torque [Nm]
(St) SP maximum d2 2) l2 DA1 G1 t1 L1 SP maximum d2 2) l3 l4 DA2 G2 t2 L2
1a 78 70
24 35 1c 28 30 61 M5 10 5c 19 36 22 61 M5 6
1b 98 90
1a 90 81
28 95 1c 32 35 72 M8 15 5c 22 42 26 72 M8 7
1b 115 106
1 114 99
38 190 1c 42 45 87 M8 15 5c 28 50 30 87 M8 7
1b 139 124
1 126 110
42 265 1c 48 50 103 M8 20 5c 35 56 34 103 M8 10
1b 151 135
1 140 120
48 310 1c 55 56 114 M8 20 5c 40 60 36 114 M8 10
1b 164 124
1 160 135
55 410 1c 65 65 130 M10 20 5c 45 66 40 130 M10 17
1b 185 160
1 185 154
65 625 1c 75 75 146 M10 20 5c 55 75 44 146 M10 17
1b 210 179

ROTEX® Standard (GJL) 4) ROTEX® SP Type GN (No. 080) ROTEX® SP Type EN (No. 081)
Compo- Compo- Dimensions [mm] Compo- Dimensions [mm]
Spider (part 2) 1) ROTEX® SP component 1c ROTEX® SP component 5c
Size nent cast nent nent
Rated torque [Nm]
iron (GJL) (SP) maximum d2 2) l2 DA G t L SP maximum d2 2) l2 l3 DA G t1 L1
1
1c 114 99
38 190 1a 42 45 87 M8 15 5c 28 50 30 87 M8 7
1b 139 124
1
1c 126 110
42 265 1a 48 50 103 M8 20 5c 35 56 34 103 M8 10
1b 151 135
1
140 120
48 310 1a 1c 55 56 114 M8 20 5c 40 60 36 114 M8 10
1b 164 144
1
55 410 1c 65 65 130 M10 20 160 5c 45 66 40 130 M10 17 135
1a
65 625 1 1c 75 75 146 M10 20 185 5c 55 75 44 146 M10 17 154

1)
Maximum torque of coupling TKmax. = rated torque of coupling TK rated x 2. Transmittable torque acc. to 92 Sh-A
2)
Bore H7 with keyway to DIN 6885 sheet 1 [JS9] and thread for setscrews
3)
3) For dimensions of standard ROTEX® hubs (St) 1, 1a, 1b see catalogue on page 36.
4)
4) For dimensions of standard ROTEX®hubs (GJL) 1, 1a, 1b see catalogue on page 34.
= Available from stock

ROTEX® SP 38 GJL 92 Sh-A 1a Ø45 1c Ø42

Ordering
example: Material of com-
Coupling size Spider hardness Component Finish bore Component Finish bore
ponent 1;1a;1b

46 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® SP ZS-DKM-C
Flexible jaw couplings

ROTEX®
Double-cardanic shaft coupling (Non Sparking)

NEW

For legend of pictogram please refer to flapper on the cover

120

Components

POLY-NORM®
7.5/7.6 2 6c 2 7.5/7.6 7.5/7.6 2 6c 2 7.5/7.6

ROTEX® SP Type ZS-DKM-C (No. 085)

Drop-out Dimensions [mm] Dimensions [mm]
Spider (part 2) 1) General component 7.5/7.6 steel
Size center ROTEX® SP comp. 6c Al-H3)
Rated torque [Nm]
length L Maximum finish bore 2) d LGes. l1; l2 x1; x2 E b s DH DA dH M TA [Nm] dB l11
100 145 49
24 35 28 30 22,5 18 14 2,0 55 61 27 M6 14 14
140 185 89
100 151 41
28 95 38 35 25,5 20 15 2,5 65 72 30 M8 35 16
140 191 81
100 171 33
38 190 45 45 35,5 24 18 3,0 80 87 38 M8 35 22

POLY
140 211 73
100 178 26
42 265 55 50 39 26 20 3,0 95 103 46 M10 69 30
140 218 66
48 140 310 60 230 56 45 28 21 3,5 105 114 51 M12 120 35 62
140 240 50
55 180 410 70 280 65 50 30 22 4,0 120 130 60 M12 120 35 90
200 300 110
140 260 40
65 625 80 75 60 35 26 4,5 135 146 68 M12 120 48
180 300 50

Type 7.5 clamping hub type DH

without feather keyway for
double-cardanic connection

Type 7.6 clamping hub type DH

with feather keyway for
double-cardanic connection
REVOLEX®

1)
Maximum torque of coupling TKmax. = rated torque of coupling TK rated x 2. Transmittable torque acc. to 92 Sh-A-GS
2)
Hub type 7.5= without keyway; hub type 7.6=with keyway to DIN 6685 sheet 1 (JS9)
3)
Size 42 with drop-out center length 100 made of steel
= Available from stock

ROTEX® SP 38 ZS-DKM-C 140 98 Sh-A-GS 7.5 Ø38 7.5 Ø30

Ordering
example: Drop-out center
Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore
length L

For continuously updated data please refer to our online catalogue at www.ktr.com 47
ROTEX® ZS-DKM-H
Flexible jaw couplings

Double-cardanic shaft coupling

For legend of pictogram please refer to flapper on the cover

120

7.5/7.6 2 6x 2 7.5/7.6

Type ZS-DKM-H

ROTEX® Type ZS-DKM-H

Drop-out Max. finish Cyl. screws DIN Max. displacements
Spider Dimensions [mm] EN ISO 4762
center bore Weight2)
Size (part 2) 1) – 12.9 Axial with n = 1500 rpm with n = 3000 rpm
length L Ød1/d2 [kg]
TKN [Nm] [mm] Radial [mm] Angular [°] Radial [mm] Angular [°]
[mm] [mm] DH dH l1; l2 x1; x2 l11 E LZS-DKM-H M TA [Nm]
100 49 145 1,17 0,87 1,40
24 28 35 55 27 30 22,5 18 M6 14 1,4
140 89 185 1,87 1,40 1,60
100 41 151 1,06 0,80 1,90
28 38 95 65 30 35 25,5 20 M8 35 1,5
140 81 191 1,76 1,32 2,20
100 33 171 0,99 0,74 3,90
38 45 190 80 38 45 35,5 24 M8 35 1,8
140 73 211 1,69 1,27 4,10
100 26 178 0,91 0,68 5,10
42 55 265 95 46 50 39,0 26 M10 69 2,0
140 66 218 1,60 1,20 5,70
100 22 190 0,87 0,65 7,10
48 60 310 105 51 56 45,0 28 M12 120 2,1
140 62 230 1,57 1,18 7,90
100 10 200 0,70 0,52 9,50
1,0 0,75
140 50 240 1,40 1,05 11,20
55 70 410 120 60 65 50,0 30 M12 120 2,2
180 90 280 2,09 1,57 12,30
200 110 300 2,44 1,83 12,80
140 40 260 1,31 0,98 16,10
65 80 625 135 68 75 60,0 35 M12 120 2,6
180 80 300 2,00 1,50 16,80
140 25 275 1,13 0,85 23,60
180 65 315 1,83 1,37 26,00
75 90 1280 160 80 85 67,5 40 M16 295 3,0
200 85 335 2,19 1,64 27,00
250 135 385 3,05 2,29 29,50
180 53 343 1,71 1,28 48,90
90 110 2400 200 100 100 81,5 45 M20 580 3,4
250 123 413 2,93 2,19 52,60

1)
Maximum torque of coupling TKmax. = rated torque of coupling TKN x 2
Size 24 to 90 spider type 98 Sh-A-GS
ZS-DKM-H: Transmittable torque acc. to 98-Sh A-GS
2)
Referring to max. bore
Finish bore according to ISO fit H7, feather keyway according to DIN 6885 sheet 1 - JS9

7.5= Shell clamping hub without feather key for a double-cardanic connection
7.6= Shell clamping hub with feather key for a double-cardanic connection
ATTENTION: The standard line is only applicable for horizontal assembly. Vertical assembly on request.

ROTEX® 38 ZS-DKM-H 140 98 Sh-A-GS 7.5 Ø 38 7.5 Ø30

Ordering
example: Shaft distance Spider hard-
Coupling size Type Hub type Finish bore Hub type Finish bore
dimension L ness

48 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® DKM
Flexible jaw couplings

ROTEX®
Double-cardanic shaft coupling

For legend of pictogram please refer to flapper on the cover

120

Components

POLY-NORM®
1a 1 2 6 2 1 1a

Type DKM

ROTEX® Type DKM (No. 018)

Spider (part 2) Max. displacement with n =
Dimensions [mm]
Ød, ØD, Rated torque [Nm] 1 1500 rpm
Größe
ØD1 Radial Axial
Angular [°]
92 Sh-A 98 Sh-A DH dH l1; l2 l11 l12 E s b LDKM [mm] [mm]
19 10 17 40 18 25 10 42 16 2,0 12 92 0,45 1,0 +1,2/-1,0
24 35 60 55 27 30 16 52 18 2,0 14 112 0,59 1,0 +1,4/-1,0

POLY
See jaw couplings on page 34

Stock programme/basic pro-

gramme on page 32 and 33

28 95 160 65 30 35 18 58 20 2,5 15 128 0,66 1,0 +1,5/-1,4

38 190 325 80 38 45 20 68 24 3,0 18 158 0,77 1,0 +1,8/-1,4
42 265 450 95 46 50 22 74 26 3,0 20 174 0,84 1,0 +2,0/-2,0
to 39

48 310 525 105 51 56 24 80 28 3,5 21 192 0,91 1,0 +2,1/-2,0

55 410 685 120 60 65 28 88 30 4,0 22 218 1,01 1,0 +2,2/-2,0
65 625 940 135 68 75 32 102 35 4,5 26 252 1,17 1,0 +2,6/-2,0
75 1280 1920 160 80 85 36 116 40 5,0 30 286 1,33 1,0 +3,0/-3,0
90 2400 3600 200 100 100 40 130 45 5,5 34 330 1,48 1,0 +3,4/-3,0

1)
For selection please see page 10 et seqq.
Finish bore according to ISO fit H7, feather keyway according to DIN 6885 sheet 1 - JS9
REVOLEX®

ROTEX® 38 DKM GJL 98 Sh-A 1 Ø 38 1 Ø30

Ordering
example: Spider hard-
Coupling size Type Material Component Finish bore Component Finish bore
ness

For continuously updated data please refer to our online catalogue at www.ktr.com 49
ROTEX® CF, CFN, DF and DFN
Flexible jaw couplings

Flange programme

For legend of pictogram please refer to flapper on the cover

120

Components
1a 1 2 3b 1a 1 2 3Na 3b 2 3b 3Na 2 3Na

z = Anzahl
z = Anzahl

z = Anzahl
z = Anzahl
Type CF Type CFN Type DF Type DFN

ROTEX® Type CF, CFN (No. 005) and DF, DFN (No. 006)
d, ØD, General dimension Dimensions CF and DF Dimensions CFN and DFN
Size
ØD1 DH dH l1 E s b l5 l7 DA D3 D4 z dL LCF LDF DN3 DN4 M z Pitch LCFN LDFN
24 55 27 30 18 2,0 14 1,5 8 80 55 65 5 4,5 56 34 36 45 M5 8 56 34
Stock programme/basic programme on page 32

28 65 30 35 20 2,5 15 1,5 10 100 65 80 6 6,6 65 40 44 54 M6 8 8x45° 65 40

38 80 38 45 24 3,0 18 1,5 10 115 80 95 6 6,6 79 44 54 66 M8 8 79 44
See shaft coupling on page 34 to 39

42 95 46 50 26 3,0 20 2,0 12 140 95 115 6 9,0 88 50 65 80 M8 12 88 50

16x22,5°
48 105 51 56 28 3,5 21 2,0 12 150 105 125 8 9,0 96 52 75 90 M8 12 96 52
55 120 60 65 30 4,0 22 2,0 16 175 120 145 8 11,0 111 62 84 102 M10 8 8x45° 111 62
65 135 68 75 35 4,5 26 2,0 16 190 135 160 10 11,0 126 67 96 116 M10 12 16x22,5° 126 67
and 33

75 160 80 85 40 5,0 30 2,5 19 215 160 185 10 13,5 144 78 112 136 M12 15 144 78
90 200 100 100 45 5,5 34 3,0 20 260 200 225 12 13,5 165 85 145 172 M16 15 165 85
100 225 113 110 50 6,0 38 4,0 25 285 225 250 12 13,5 185 100 165 195 M16 15 185 100
110 255 127 120 55 6,5 42 4,0 26 330 255 290 12 18,0 201 107 180 218 M20 15 20x18° 201 107
125 290 147 140 60 7,0 46 5,0 30 370 290 325 16 18,0 230 120 215 252 M20 15 230 120
140 320 165 155 65 7,5 50 5,0 34 410 320 360 16 22,0 254 133 245 282 M20 15 254 133
160 370 190 175 75 9,0 57 5,0 38 460 370 410 16 22,0 288 151 280 325 M24 15 288 151
180 420 220 195 85 10,5 64 5,5 40 520 420 465 16 26,0 320 165 330 375 M24 18 24x15° 320 165

For other flange programmes see page 43.

Other types: ROTEX® CF-H

Flange drop-out center design coupling
Please order our separate dimension sheet (M412069)

ROTEX® 38 CF 92 Sh-A 1 GJL Ø20

Ordering
example: Hub side
Coupling size Type Spider hardness Material Finish bore
Component

50 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® ZR
Flexible jaw couplings

ROTEX®
Intermediate shaft programme

For legend of pictogram please refer to flapper on the cover

120

Components 7.5/7.6 2 2.0 9 2.0 2 7.5/7.6

POLY-NORM®
1a 2 2.0 9 2.0 2 1a

Type ZR
Type ZR (with GS spider and clamping hubs type DH for a double-cardanic
(with GS spider) connection 7.5 or 7.6)

ROTEX® Type ZR (No. 037)

Clamping screw

Locking screw

displacement

displacement
Finish bore Intermediate pipe Clamping screw

Cone bore
Dimensions [mm] Component

[degrees]
dp [mm]

Angular
Ød Torsional stiffness/m Part 2.0

[mm]
Axial
7.5/7.6

G1
Size
Part C2) LZR; min. min.
Part 1a
7.5/7.6 DH l1; l2 x1; x2 E s b RA [Nm²/rad] M1 TA [Nm] M2 TA [Nm] LZH LR1 LR2
19 25 20 40 25 17,5 16 2,0 12 Ø20x3 954,9 M6 14 M6 10 110 97 M6 4,0 1,2 0,9
24 35 28 55 30 22,5 18 2,0 14 Ø30x4 4522 M6 14 M6 14 128 111 M8 5,5 1,4 0,9
28 40 38 65 35 25,5 20 2,5 15 Ø35x4 7611 M8 35 M8 35 145 129 M10 7,0 1,5 0,9
LR2 + 2  x1/x2
LR1 + 2  l1

38 48 45 80 45 35,5 24 3,0 18 Ø40x4 11870 M8 25 M8 35 180 157 M12 8,5 1,8 1,0
42 55 55 95 50 39,0 26 3,0 20 Ø45x4 17487 M10 49 M10 69 198 174 M12 8,5 2,0 1,0
48 62 60 105 56 45,0 28 3,5 21 Ø50x4 24648 M12 86 M12 120 217 190 M16 12 2,1 1,1

POLY
55 74 70 120 65 50,0 30 4,0 22 Ø55x4 33544 M12 120 M12 120 242 220 M16 12 2,2 1,1
65 80 80 135 75 60,0 35 4,5 26 Ø65x5 68329 M12 120 M12 120 281 250 M16 12 2,6 1,2
75 95 90 160 85 67,5 40 4,0 30 Ø75x5 108000 M16 295 M16 295 318 285 M16 12 3,0 1,2

1)
For inquiries and orders please mention the shaft distance dimension LR1/LR2 Diagramme for
along with the maximum speed to review the critical bending speed. coupling selection:
2)
Torsion spring stiffness with a length of 1 m of intermediate pipe size 42 ZR size 48 ZR
Finish bore acc. to ISO fit H7, feather keyway acc. to DIN 6885 sheet 1 - JS9 size 19 ZR size 38 ZR size 55 ZR
Friction torques of clamping hubs have to be taken into account. Please order size 28 ZR size 65 ZR
dimension sheet No. 583613. size 24 ZR size 75 ZR

Not permissible for crane and hoisting gear drives

Speed [rpm]

REVOLEX®

Length of pipe [mm]

ROTEX 38 ®
ZR 1200 98 Sh-A-GS 7.5 Ø 38 7.5 Ø30
Ordering
example: Shaft distance di- Spider hard-
Coupling size Type Hub type Finish bore Hub type Finish bore
mension LR1/LR2 ness

For continuously updated data please refer to our online catalogue at www.ktr.com 51
ROTEX® BTAN and SBAN
Flexible jaw couplings

With brake drum / with brake disk

For legend of pictogram please refer to flapper on the cover

120

ROTEX® Type BTAN (No. 011) and SBAN (No. 013)

Pilot bore Finish bore max.d1 Dimensions [mm]
Size Ød; ØD
ØD1 GJS Steel DH D2 D4 dH z Pitch 1) M TA [Nm] l1; l2 E L
38 — 34 80 50 66 38 8 8 x 45° M8 41 45 24 114
See jaw couplings on page 34

Stock programme/basic pro-

gramme on page 32 and 33

42 — 42 95 60 80 46 12 M8 41 50 26 126
16 x 22,5°
48 — 48 105 68 90 51 12 M8 41 56 28 140
55 — 55 120 78 102 60 8 8 x 45° M10 83 65 30 160
65 — 65 135 92 116 68 12 16 x 22,5° M10 83 75 35 185
to 39

75 — 75 160 106 136 80 15 M12 120 85 40 210

90 — 100 200 140 172 100 15 M16 295 100 45 245
100 100 — 225 156 195 113 15 20 x 18° M16 295 110 50 270
110 110 — 255 176 218 127 15 M20 580 120 55 295
125 130 — 290 204 252 147 15 M20 580 140 60 340

Type BTAN Type SBAN

ROTEX® BTAN dimension „C“ Speed ROTEX® SBAN dimension “N” Speed
Brake
rpm [V] Brake disk rpm [V]
drum 38 42 48 55 65 75 90 100 110 125 38 42 48 55 65 75 90 100 110 125
(30 m/s) (30 m/s)
160x60 14 3550 200x12,5 31,25 2800
200x75 9 12 17 24 2800 250x12,5 31,25 34,25 39,25 2240
250x95 1 4 9 16 25 33 2240 315x16 32,5 37,5 44,5 53,5 61,5 1800
315x118 -5 0 7 16 24 36 1800 400x16 37,5 44,5 53,5 61,5 73,5 81,5 88,5 1400
400x150 -18 -13 -6 3 11 23 31 38 1400 500x16 44,5 53,5 61,5 73,5 81,5 88,5 104,5 1120
500x190 -12 -4 8 16 23 39 1120 630x20 51,5 59,5 71,5 79,5 86,5 102,5 900
630x236 -22 -10 -2 5 21 900 710x20 51,5 59,5 71,5 79,5 86,5 102,5 800
710x265 -13 -6 10 800 800x25 69 77 84 100 710
800x300 -4 710 900x25 84 100 630

1)
Thread in the hub between the cams
Other sizes on request according to dimension sheet No.:
BTAN:M 380821
SBAN straight: M380822; cranked: M 370065
FNN hub: M 380823
Finish bore according to ISO fit H7, feather keyway acc. to DIN 6885 sheet 1 - JS9

ROTEX® 38 BTAN Ø200x75 98 Sh-A 1Nd Ø 38 1 Ø30

Ordering
example: Ø brake drum Spider hard-
Coupling size Type Component Finish bore Component Finish bore
x width ness

52 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX®
Components

1a 1 2 7N 1Nd

z = Anzahl

POLY-NORM®
Brake drum
type BTAN

1a 1 2 15N 1Nd

POLY
z = Anzahl

Brake disk
type SBAN
REVOLEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 53
ROTEX® AFN-SB
Flexible jaw couplings

Drop-out center design coupling with brake disk

For legend of pictogram please refer to flapper on the cover

120

Components 4Nv 3Na 2 15Nx 3Na 4Nx

z= number

Motor side

ROTEX® Type AFN-SB special

Finish bore d Dimensions [mm]
Size
Min. max DH DF D3 H7/h7 D4 dH E E1 M z Pitch TA [Nm]
65 22 65 135 94 96 116 68 35 65 M10 12 16x22,5° 83
75 30 75 160 108 112 136 80 40 75 M12 15 120
90 40 100 200 142 145 172 100 45 82 M16 15 295
100 46 110 225 158 165 195 113 50 97 M16 15 295
110 60 125 255 178 180 218 127 55 103 M20 15 20x18° 580
125 60 145 290 206 215 252 147 60 116 M20 15 580
140 60 165 320 235 245 282 165 65 128 M20 15 580
160 80 190 370 270 280 325 190 75 146 M24 15 1000
180 85 220 420 315 330 375 220 85 159 M24 18 24x15° 1000

ROTEX® Bauart AFN-SB spezial

Torque with 98Sh-A 1) Max. speed Max.braking Dimensions [mm]
Size
TKN TKmax [rpm] torque [Nm]2) l7 l10 l11 l12 l20 N L
65 940 1880 3450 1880 16 112,5 113,5 166,0 135 150 344,5
75 1920 3840 3250 3840 19 131,5 133,0 166,5 135 150 374,5
90 3600 7200 3000 7200 20 164,0 165,5 206,5 175 190 454,0
100 4950 9900 2800 9900 25 153,5 155,0 206,5 175 190 458,5
110 7200 14400 2600 14400 26 201,5 203,5 212,0 180 195 518,5
125 10000 20000 2250 20000 30 198,5 200,5 212,0 180 195 528,5
220 235
140 12800 25600 1800 25600 34 244,5 247,0 252,5 627,5
210 3) 230 3)
220 235
160 19200 38400 1500 38400 38 226,5 229,0 252,5 627,5
210 3) 230 3)
180 28000 56000 1350 56000 40 195,0 198,0 252,5 220 235 609,5

ROTEX® Selection of coupling/brake disk

Brake disk ØA x b1
Size
355x30 400x30 450x30 500x30 560x30 630x30 710x30 800x30 900x30 900x40 1000x40
65 x x x
75 x x x
90 x x x x
100 x x x
110 x x x x
125 x x x
140 x x x x x
160 x x x x x
180 x x x x x
1)
For selection see page 10 et seqq. 2)
The maximum braking torque must not exceed the maximum torque of the coupling. 3)
Dimensions for a brake disk width b1 of 40 mm.

ROTEX® 90 AFN-SB special Ø450x30 98 Sh-A 4Nv Ø90 4Nx Ø90

Ordering
example: ØBrake disk, x Spider hard-
Coupling size Type Component Finish bore Component Finish bore
width ness

54 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® SD
Flexible jaw couplings

ROTEX®
Shiftable coupling shiftable at standstill

For legend of pictogram please refer to flapper on the cover

120

Components

POLY-NORM®
1a 1 2 1e 11 shiftable linkage
slip ring
engaged

shifting path

disengaged

Type SD Type SD with slip ring and shiftable linkage

ROTEX® Type SD (No. 015)

Shifting Shift-
Slip
Ød, ØD, Finish bore d1 Dimensions [mm] force able
Size ring
ØD1 set in linkage
Min. max. DH D2±0,1 Db dH l1;l2 E s b E1 L L1 W a n±0,1 LSD size
[N] size
24 8 18 55 41 30 27 30 18 2,0 14 16,5 78 51,5 16,0 6 6,0 98 110 — —
Stock programme/basic progr. see page

POLY
See jaw couplings on page 34 to 39

28 10 22 65 58 36 30 35 20 2,5 15 18,0 90 60,0 17,5 8 8,0 113 130 — —

38 12 28 80 70,5 45 38 45 24 3,0 18 22,0 114 73,0 21,0 8 12,5 140 150 1.1 1
42 14 32 95 70,5 50 46 50 26 3,0 20 24,0 126 82,0 23,0 8 12,5 156 180 1.1 1
48 15 40 105 89,5 60 51 56 28 3,5 21 25,5 140 90,5 24,5 6 17,5 172 200 2.2 2
32 and 33

55 18 48 120 112,5 70 60 65 30 4,0 22 27,0 160 103,0 26,0 6 18,0 195 250 3.3 3
65 20 55 135 112,5 80 68 75 35 4,5 26 32,0 185 120,0 30,5 7 18,0 227 280 3.3 3
75 25 65 160 130,5 95 80 85 40 5,0 30 37,0 210 135,0 35,0 6 20,5 257 350 4.4 3
90 28 75 200 164,5 110 100 100 45 5,5 34 41,0 245 152,0 39,5 8 25,5 293 350 5.5 4
100 30 80 225 164,5 115 113 110 50 6,0 38 46,0 270 169,0 44,0 14 25,5 325 380 5.5 4
110 35 85 255 164,5 125 127 120 55 6,5 42 51,5 295 184,0 48,5 18,5 25,5 355 450 5.5 4
125 40 100 290 210,5 145 147 140 60 7,0 46 55,5 340 208,5 53,0 18,5 30,5 404 500 6.6 5

Slip ring and shiftable linkage

Size of Dimensions [mm] Max. speed
Size shiftable [rpm] for slip
linkage a1 b1 c d2 d3 d5 e1) e1 F g1 L2 L3 m m1 Min. m1 max. A B ring
38 1
110 50 18 20 11 12 30 25 70 55 320 400 75 180 190 90 114 3280
42 1
48 2 25 27 97,5 60 430 450 240 270 111 151 2550
55 3
140 17 40 100 140 180 2120
65 3 30 32,5 120 70 490 600 280 310
75 3 170 210 1710
60 25 13,5
90 4
REVOLEX®

100 4 35 21 37,5 147,5 70 565 750 321 365 200 244 1360
160 50 120
110 4
125 5 40 25 46 190 80 630 1085 365 410 250 300 855

1)
With a through base plate the dimension „e“ of the shiftable linkage size 5 has to be increased by at least 10 mm.
Finish bore according to ISO fit H7, feather keyway acc. to DIN 6885 sheet 1 - JS9

ROTEX® 38 SD With 1.1 and 1 98 Sh-A 1 Ø38 11 Ø28

Ordering
example: with slip ring 1.1 and Spider hard-
Coupling size Type Component Finish bore Component Finish bore
shifting linkage 1 ness

For continuously updated data please refer to our online catalogue at www.ktr.com 55
ROTEX® FNN
Flexible jaw couplings

For mounting of fan

For legend of pictogram please refer to flapper on the cover

120

Components
1a 1 2 1Nd
z = Anzahl

Type FNN Type FNN with fan (type 1)

ROTEX® Type FNN (No. 021)

Max. Dimensions [mm]
Ød, ØD,
Size finish bore
ØD1
Ød1 DH D2 D4 dH E s b l1;l2 P M z Pitch LFNN
28 24 65 40 54 30 20 2,5 15 35 6,5 M6 8 90
progr. see page 32 and 33

8x45°
Stock programme/basic
See jaw couplings on

38 34 80 50 66 38 24 3,0 18 45 7,5 M8 8 114

page 34 to 39

42 42 95 60 80 46 26 3,0 20 50 9,5 M8 12 126

16x22,5°
48 48 105 68 90 51 28 3,5 21 56 10,5 M8 12 140
55 55 120 78 102 60 30 4,0 22 65 12,5 M10 8 8x45° 160
65 65 135 92 116 68 35 4,5 26 75 13,5 M10 12 16x22,5° 185
75 75 160 106 136 80 40 5,0 30 85 15,5 M12 15 210
20x18°
90 100 200 140 172 100 45 5,5 34 100 18,5 M16 15 245

Other sizes on request

Type 1: Fan screwed on Type 2: Fan injection-moulded Type 3: Fan pressed or glued on
The ROTEX® coupling can be supplied with Low prices due to production volumes Special surface forming (knurling according
the fan screwed on. Specific connection with higher quantities. to DIN 82) allows the fan to be pressed or
dimensions of customers such as pitch circle glued onto the hub collar.
of threads, size of threads and number or
centering of fans should be mentioned in your
inquiry.

ROTEX® 38 FNN 92 Sh-A 1 Ø 38 1Nd Ø30

Ordering
example: Coupling size Type Spider hardness Component Finish bore Component Finish bore

56 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX®
Flexible jaw couplings

ROTEX®
Other types with clamping sets

1 2 1

Assembly 1

Assembly 2

Components

POLY-NORM®
ROTEX® Type No. 001 with clamping set CLAMPEX® KTR 200
CLAMPEX® KTR 200
Ød, ØD, Transmittable torque and Abmessungen [mm]
Size Hub material Max. size of KTR
ØD1 axial force
clamping set dxD
T [Nm] FAX [kN] B l2 E s b DH D dH L
42 30x55 769 51 48 50 26 3,0 20 95 — 46
Stock programme/basic programme on
See jaw couplings on page 34 to 39

48 35x60 1197 68 48 56 28 3,5 21 105 — 51

length = I2+ E + B (clamping set)

55 45x75 2132 95 59 65 30 4,0 22 120 — 60
Part 1
Steel

65 45x75 2132 95 59 75 35 4,5 26 135 115 68

page 32 and 33

75 50x80 3159 126 59 85 40 5,0 30 160 135 80

90 65x95 4107 126 59 100 45 5,5 34 200 160 100
100 65x95 4107 126 59 110 50 6,0 38 225 180 113
110 70x110 7023 201 70 120 55 6,5 42 255 200 127
125 80x120 8026 201 70 140 60 7,0 46 290 230 147
Part 1
GJS

140 95x135 11373 239 70 155 65 7,5 50 320 255 165

160 110x155 16068 292 80 175 75 9,0 57 370 290 190
180 120x165 21910 365 80 195 85 10,5 64 420 325 220

ROTEX® Type No. 001 with clamping set CLAMPEX® KTR 200
Transmittable Clamping screws Transmittable Clamping screws Transmittable Clamping screws
KTR 200 KTR 200 KTR 200
Length torque and DIN EN ISO 4762 Length torque and DIN EN ISO 4762 Length torque and DIN EN ISO 4762
size size size

POLY
axial force – 12.9 axial force – 12.9 axial force – 12.9
dxD B T [Nm] Fax [kN] zxM TA [Nm] dxD B T [Nm] Fax [kN] zxM TA [Nm] dxD B T [Nm] Fax [kN] zxM TA [Nm]
20x47 48 513 51 6xM6 17 38x65 48 1299 68 8xM6 17 65x95 59 4107 126 8xM8 41
22x47 48 564 51 6xM6 17 40x65 48 1368 68 8xM6 17 70x110 70 7023 201 8xM10 83
24x50 48 616 51 6xM6 17 42x75 59 1990 95 6xM8 41 75x115 70 7524 201 8xM10 83
25x50 48 641 51 6xM6 17 45x75 59 2132 95 6xM8 41 80x120 70 8026 201 8xM10 83
28x50 48 718 51 6xM6 17 48x80 59 3033 126 8xM8 41 85x125 70 10659 251 10xM10 83
30x55 48 769 51 6xM6 17 50x80 59 3159 126 8xM8 41 90x130 70 11286 251 10xM10 83
32x60 48 1094 68 8xM6 17 55x85 59 3475 126 8xM8 41 95x135 66 11373 239 10xM10 83
35x60 48 1197 68 8xM6 17 60x90 59 3791 126 8xM8 41 for further details please see CLAMPEX® catalogue

Type 4.2 with CLAMPEX® clamping set KTR 250 Type 4.3 for CLAMPEX® clamping set KTR 400
Frictionally engaged, backlash-free Frictionally engaged, backlash-free
shaft-hub-connection for transmitting shaft-hub-connection for transmitting
average torques. bigger torques. Maximum size of clamp-
ing set depends on the hub collar diam-
eter. Clamping set screw fitting possible
REVOLEX®

both internally and externally. For details

of calculation please see CLAMPEX®
catalogue.

For CLAMPEX programme please see page 266 to 294

For continuously updated data please refer to our online catalogue at www.ktr.com 57
ROTEX®
Flexible jaw couplings

Other types with torque limiters

ROTEX® BKN - shear pin coupling, type BKN No. 009
Max. finish Max. finish Min. fracture
Size l1 l2 LBKN DH
bore d bore d1 torque [Nm]
28 28 35 25 101 65 100

Stock progr./basic progr.

38 38 45 35 125 80 190

See shaft coupling on

42 42 50 40 139 95 250

on page 32/33
page 34 to 39
48 48 56 46 153 105 300
55 55 65 55 177 120 400
65 65 75 65 202 135 500
75 75 85 70 230 160 600
90 100 100 85 266 200 700

Modification for customer from the stock programme.

Please mention the fracture torques with your order!
For further details please see dimension sheet No. 5020/000/009-7603

ROTEX® - RUFLEX® - Overload coupling, type No. 070

ROTEX ®
RUFLEX® Ratchet
d d1 max. DA l1 LR LRU
size size torques [Nm]
14 00 0,5 — 5 10 44 11 31 59

See shaft coupling on

progr. on page 32/33

Stock progr./basic
19 0 2 — 20 20 1) 63 25 33 78

page 34 to 39
24 01 5 — 70 22 80 30 45 98
28 1 20 — 200 25 98 35 52 113
38 2 25 — 400 35 120 45 57 133
48 3 50 — 800 45 162 56 68 166
75 4 90 — 1600 55 185 85 78 205

1)
Finish bore exceeding ø 19, keyway according to 6885/3

ROTEX® - KTR-SI - Overload coupling, type No. 070

Ratchet
ROTEX ®
KTR-SI KTR-SI
torques d max. d1 DA l1 LS LSI
size type size
[Nm]
DK 2 12-200 35 100 56 124
28 35
See shaft coupling on page 34 to 39

SR/SGR 0 5-40 20 55 34,5 102

Stock progr./basic progr. on page

DK 3 25-450 45 120 73 155

38 45
SR/SGR 1 12-100 25 82 48 129,5
DK 4 50-1000 55 146 93,5 194
48 56
32/33

SR/SGR 2 25-200 35 100 56 155

DK 5 85-2000 65 176 107 222,5
55 65
SR/SGR 3 50-450 45 120 73 186
DK — — — — — —
75 85
SR/SGR 4 100-2000 55 146 93,5 241,5
DK — — — — — —
90 100
SR/SGR 5 170-3400 65 176 107 275,5

stroke = 2 mm SYNTEX® - backlash-free, torsionally rigid overload coupling with ROTEX® GS

SYNTEX®

SYNTEX® torque range

ROTEX®

Max. Bore
size

size

disk spring [Nm] DA DH dH E L LG l1 l2 l5

DK1 DK2 SK1 SK2 d d1
24 20 6-20 15-30 10-20 20-65 35 20 80 55 27 18 45 100 30 70 10
28 25 20-60 45-90 25-65 40-100 40 25 98 65 30 20 50 113 35 78 11
38 35 25-80 75-150 30-100 70-180 48 35 120 80 38 24 60 136 45 91 13
48 50 60-180 175-300 80-280 160-400 55 50 162 105 51 28 70 167 56 111 14

58 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX®
Flexible jaw couplings

ROTEX®
Weights and mass moments of inertia

1 1a 2 3b 3Na 4N 6

ROTEX® individual components

DKM
Standard hub Large hub Spider Driving flange C-flange
spacer
Part 1 Part 1a Part 2 Part 3b Part 3Na Part 4N Part 6
Size Polyurethane
Alu GJL GJS St Alu GJL St GJS St GJS St Alu
(Vulkollan)

POLY-NORM®
[kg] [kg] [kg] [kg] [kg] [kg] [kg] [kg] [kg] [kg] [kg] [kg]
[kg]
[kgm²] [kgm²] [kgm²] [kgm²] [kgm²] [kgm²] [kgm²] [kgm²] [kgm²] [kgm²] [kgm²] [kgm²]
[kgm²]
— — — — 0,020 — — 0,0044 — — — — —
14
— — — — 0,000003 — — 0,0000005 — — — — —
0,064 — — — 0,074 — 0,25 0,0056 — — — — —
19
0,00001 — — — 0,00002 — 0,00006 0,000001 — — — — —
0,123 — — — 0,174 — 0,55 0,014 0,028 0,145 — 0,30 0,14
24
0,00004 — — — 0,00008 — 0,00023 0,000006 0,00023 0,00007 — 0,00009 0,00006
0,200 — — — 0,264 — 0,89 0,024 0,54 0,232 — 0,49 0,22
28
0,00010 — — — 0,00019 — 0,00053 0,000010 0,0007 0,00017 — 0,0002 0,00013
0,44 1,16 — 1,6 0,470 1,32 1,74 0,042 0,73 — 0,313 0,87 0,35
38
0,00033 0,00086 — 0,00151 0,00046 0,00135 0,00155 0,00003 0,001 — 0,00038 0,0005 0,00035
0,69 1,75 — 2,44 0,772 2,05 2,74 0,065 1,26 — 0,608 1,4 0,47
42
0,00067 0,00178 — 0,00281 0,00111 0,00291 0,00343 0,00007 0,0032 — 0,00089 0,0011 0,00068
0,80 2,44 — 3,34 1,01 2,78 3,72 0,086 1,45 — 0,755 1,92 0,62
48
0,0012 0,00308 — 0,00473 0,00174 0,00484 0,00570 0,00013 0,0043 — 0,001358 0,0018 0,0011
— 3,68 — 5,05 — 4,08 5,57 0,11 2,58 — 1,243 2,93 0,90
55
— 0,00615 — 0,00948 — 0,00926 0,01193 0,00023 0,0105 — 0,002920 0,0037 0,0021
— 5,67 — 6,79 — 6,04 8,22 0,17 3,10 — 1,635 4,36 1,31
65
— 0,01240 — 0,01516 — 0,01789 0,02079 0,00042 0,0149 — 0,004891 0,0069 0,0039
— 8,72 — 10,5 — 9,53 14,3 0,32 4,46 — 2,511 6,80 1,97
75
— 0,02644 — 0,03269 — 0,03946 0,05069 0,00116 0,0281 — 0,01050 0,0151 0,0082
— 14,8 — 18,7 — 18,2 24,0 0,57 6,94 — 4,151 12,84 3,45
90
— 0,06730 — 0,08742 — 0,15086 0,13151 0,00323 0,0651 — 0,02723 0,0448 0,0224
— — 19,7 — — — ­— 0,81 10,2 — 6,350 16,16 —
100

POLY
— — 0,11694 — — — — 0,00588 0,1165 — 0,05273 0,0798 —
— — 27,4 — — — — 1,19 — — 8,578 21,35 —
110
— — 0,20465 — — — — 0,01097 — — 0,09121 0,2824 —
— — 42,3 — — — — 1,63 — — 12,598 34,33 —
125
— — 0,40727 — — — — 0,01972 — — 0,17469 0,3229 —
— — 58,1 — — — — 2,11 — — 17,271 48,69 —
140
— — 0,67739 — — — — 0,03129 — — 0,29247 0,4917 —
— — 84,2 — — — — 3,21 — — 26,305 71,08 —
160
— — 1,31729 — — — — 0,06323 — — 0,59436 0,9693 —
— — 118,5 — — — — 5,25 — — 33,076 109,43 —
180
— — 2,30835 — — — — 0,13789 — — 0,97394 1,9650 —
REVOLEX®

Weight and mass moment of inertia each refer to the average finish bore without feather keyway.

For continuously updated data please refer to our online catalogue at www.ktr.com 59
ROTEX®
Flexible jaw couplings

Weights and mass moments of inertia

ROTEX® Complete coupling types

Standard AFN BFN CF DF SD
Size Mass moment Mass moment Mass moment Mass moment Mass moment Mass moment
Weight Weight Weight Weight Weight Weight
of inertia J of inertia J of inertia J of inertia J of inertia J of inertiaJ
[kg] [kg] [kg] [kg] [kg] [kg]
[kgm²] [kgm²] [kgm²] [kgm²] [kgm²] [kgm²]
19 0,51 0,000121 — — — — 0,44 0,00016 0,38 0,00020 0,42 0,00008
24 1,1 0,000466 0,98 0,00036 1,1 0,00041 0,84 0,00047 0,57 0,00047 1,1 0,00046
28 1,8 0,00107 1,6 0,00083 1,7 0,00095 1,5 0,00124 1,1 0,00141 1,9 0,00106
38 2,5 0,00171 2,8 0,00209 2,6 0,00193 1,9 0,00217 1,5 0,00259 3,0 0,00435
42 3,9 0,00476 4,5 0,00472 4,1 0,00419 3,1 0,00513 2,6 0,00662 4,4 0,00804
48 5,3 0,00805 5,9 0,00736 5,5 0,00684 3,9 0,00755 3,0 0,00881 6,2 0,00223
55 7,9 0,01564 8,9 0,01480 8,3 0,01369 6,4 0,01692 5,3 0,02131 9,8 0,0166
65 11,9 0,03071 12,9 0,0266 12,3 0,0259 8,9 0,02780 6,4 0,003037 14,9 0,0326
75 18,6 0,06706 20,6 0,0601 19,3 0,0572 13,5 0,0557 9,2 0,05741 23,2 0,0706
90 33,6 0,22139 37,8 0,1718 34,2 0,1551 22,3 0,1356 14,5 0,1333 40,5 0,1891
100 40,2 0,23976 49,6 0,3068 45,2 0,2737 30,9 0,2401 21,2 0,2394 46,7 0,2467
110 56,0 0,42027 67,5 0,5385 61,7 0,4793 42,9 0,4324 29,8 0,4446 61,5 0,4186
125 86,2 0,83426 102,6 1,0485 94,4 0,9413 64,4 0,8187 42,2 0,8031 96,8 0,8497
140 118,3 1,38607 141,2 1,743 129,7 1,564 90,4 1,4221 62,5 1,4580 127,8 1,368
160 171,6 2,69781 210,3 3,517 190,9 3,107 127,6 2,589 83,6 2,4805 190,3 2,723
180 242,25 4,75449 306,6 6,582 274,4 5,668 175,1 4,448 107,9 4,141 262,2 4,810

BTAN/SBAN without drum/disk Brake drum for BTAN 1) Brake disk for SBAN 1)
Weight Mass moment of Brake drum Weight Mass moment of Brake disk Weight Mass moment of
Size
[kg] inertia J [kgm²] ØDB x B [kg] inertia J [kgm²] ØA x GS [kg] inertia J [kgm²]
28 0,90 0,0004 160 x 60 2,12 0,01 200 x 12,5 2,928 0,015367
38 2,10 0,0014 200 x 75 3,45 0,03 250 x 12,5 4,662 0,037584
42 3,24 0,0031 250 x 95 6,87 0,08 315 x 16 8,618 0,111829
48 4,41 0,0053 315 x 118 14,95 0,28 400 x 16 15,230 0,315206
55 6,60 0,0105 400 x 150 31,20 0,89 500 x 16 23,964 0,769963
65 10,1 0,0209 500 x 190 60,00 2,70 630 x 20 47,716 2,426359
75 15,4 0,0442 630 x 236 112,00 8,01 710 x 20 60,934 3,915100
90 27,6 0,1224 710 x 265 161,00 14,9 800 x 25 94,913 7,878998
100 36,9 0,2074 800 x 300 202,00 27,2 900 x 25 118,954 12,609089
110 50,9 0,3665 1000 x 25 148,240 19,234941
125 79,1 0,7349
140 109,0 1,2292
160 161,9 2,4569
180 232,9 4,4967

60 For continuously updated data please refer to our online catalogue at www.ktr.com
POLY-NORM®
Flexible couplings

ROTEX®
Technical data
POLY-NORM® Technical data
Torque [Nm] Twist angle with Torsion spring stiffness Cdyn. [Nm/rad] Max. permissible displacement [mm] 1)
Max. speed
Size Maximum [1/min] with
Rated torque Vibratory
torque TKN TKmax. 1.0 TKN 0.75 TKN 0.5 TKN 0.25 TKN axial ∆Ka radial ∆Kr angular ∆Kw
TKN torque TKW V=35 m/s
TKmax.
28 40 80 16 9650 5200 3318 1867 897 ± 1,0 0,20 1,2
32 60 120 24 8550 7820 4989 2821 1349 ± 1,0 0,25 1,4
4,5 6,0
38 90 180 36 7650 13540 8639 4885 2336 ± 1,0 0,25 1,5
42 150 300 60 6950 26250 16748 9471 4528 ± 1,0 0,25 1,7
48 220 440 88 6300 29896 19074 10786 5157 ± 1,5 0,30 1,8
55 300 600 120 5650 38500 24563 13891 6641 ± 1,5 0,30 2,0
60 410 820 164 5150 67600 43129 23200 11661 ± 1,5 0,30 2,2
4,0 5,5
65 550 1100 220 4750 81800 52188 26994 14111 ± 1,5 0,35 2,4
75 850 1700 340 4200 122900 78410 40557 21200 ± 1,5 0,40 2,7
85 1350 2700 540 3650 243045 155063 74858 41925 ± 1,5 0,40 3,0
90 2000 4000 800 3300 361571 230682 111364 62371 ± 1,5 0,45 3,4
100 2900 5800 1160 2950 548200 349752 168846 94565 ± 3,0 0,50 3,9
110 3900 7800 1560 2650 792300 505487 244028 136672 ± 3,0 0,60 4,3
125 5500 11000 2200 2350 2,5 3,5 1023240 652827 315158 176509 ± 3,0 0,60 4,8
140 7200 14400 2880 2100 1640430 1046594 508533 282974 ± 3,0 0,60 5,5

POLY-NORM®
160 10000 20000 4000 1900 2090930 1334013 648188 360685 ± 3,0 0,65 6,1
180 13400 26800 5360 1650 2670700 1703907 827917 460696 ± 3,0 0,65 6,0
200 19000 38000 7600 1450 ± 4,0 0,65 7,8
220 30000 60000 12000 1300 ± 4,0 0,70 8,7
240 43000 86000 17200 1200 on request ± 4,0 0,70 9,6
260 55000 110000 22000 1000 ± 4,0 0,85 11,3
280 67000 134000 26800 950 ± 4,0 0,95 12,2
1)
Displacement with n = 1500 rpm
Radial and angular displacements may occur simultaneously. The combined sum of displacements must not exceed the values listed in the table . If requested, coupling is dynamically balanced
(semi-key balancing G 6.3 with 1500 rpm). For circumferential speeds exceeding V = 20 m/s, dyn. balancing is recommended.

Axial displacement ∆Ka Radial displacement ∆Kr Angular displacement ∆Kw

1° [de-
grees]

POLY
Lmax./min = L + ∆Ka [mm] ∆Kw = Smax. – SMin. [mm]

Assembly instructions
With assembly the coupling halves must be mounted such that the coupling and shaft are flush. Alignment has to be done such that the
radial and angular displacement is as small as possible. The service life of coupling and bearings is extended by accurate alignment. Steps
must be taken to ensure that the alignment will not change during all operating conditions. Shaft displacement which cannot be avoided
must not exceed the figures specified in the table. Winkeliger und radialer Versatz können zugleich auftreten. The combined sum of displace-
ments must not exceed the values listed in the table . See KTR mounting instructions, KTR standard 49510 at our homepage www.ktr.com.

General information about the elastomer

Material/Hardness Perbunan [NBR]/78 Shore-A
Permanent temperature range [ºC] -30 to + 80
Max. temperature (short time) [ºC] -50 to + 120
Operating range General engineering
Pump industry
ATEX applications
Chemical industry
REVOLEX®

Standard applications of average elasticity

Resistant to Gasoline, diesel

Acids, bases
Tropics
(Salt) water (hot/cold)
Oils, greases Elastomer ring NBR 78 Shore-A
Propane, butane
Natural gas, city gas
Elastomer ring Viton [FKM] 60 Shore-A for the high-temperature range on request

For continuously updated data please refer to our online catalogue at www.ktr.com 61
POLY-NORM®
Flexible couplings
coupling

Selection of standard IEC motors

POLY-NORM®-Couplings for standard IEC motors, protection IP 54/IP 55 (elastomer ring 78 Shore-A)
A. C. motor 50 Hz Motor output n= POLY®- Motor output n= POLY®- Motor output n= POLY®- Motor output n= POLY®-
Shaft end dxl [mm] 3000 rpm 2 poles NORM 1500 rpm 4 poles NORM 1000 rpm 6 poles NORM 750 rpm 8 poles NORM
Size Output P Torque coupling Output P Torque coupling Output P Torque coupling Output P Torque coupling
2-pole 4, 6, 8 pole size size size size
[kW] T [Nm] [kW] T [Nm] [kW] T [Nm] [kW] T [Nm]
0,09 0,32 0,06 0,43 0,037 0,43
56 9 x 20
0,12 0,41 0,09 0,64 0,045 0,52
0,18 0,62 0,12 0,88 0,06 0,7
63 11 x 23
0,25 0,86 0,18 1,3 0,09 1,1
0,37 1,3 0,25 1,8 0,18 2 0,09 1,4
71 14 x 30
0,55 1,9 0,37 2,5 0,25 2,8 0,12 1,8
0,75 2,5 28/32 0,55 3,7 28/32 0,37 3,9 28/32 0,18 2,5 28/32
80 19 x 40
1,1 3,7 0,75 5,1 0,55 5,8 0,25 3,5
90S 1,5 5 1,1 7,5 0,75 8 0,37 5,3
24 x 50
90L 2,2 7,4 1,5 10 1,1 12 0,55 7,9
2,2 15 0,75 11
100L 3 9,8 1,5 15
28 x 60 3 20 1,1 16
112M 4 13 4 27 2,2 22 1,5 21
5,5 18
132S 5,5 36 3 30 2,2 30
7,5 25
38 x 80 38 38 38 38
4 40
132M 7,5 49 3 40
5,5 55
11 36 4 54
160M 11 72 7,5 75 42 42
42 x 110 15 49 42 42 5,5 74
160L 18,5 60 15 98 11 109 7,5 100
180M 22 71 48 18,5 121 48 48
48 x 110 48
180L 22 144 15 148 11 145
30 97 18,5 181 55 15 198
200L 55 x 110 30 196 55 55
37 120 55 22 215
225S 37 240 60 18,5 244
55 x 110 60 x 140 60 60
225M 45 145 45 292 30 293 22 290
250M 60 x 140 65 x 140 55 177 60 55 356 65 37 361 65 30 392 65
280S 75 241 75 484 45 438 37 483
75 x 140 75 75 75
280M 90 289 65 90 581 55 535 45 587
315S 110 353 110 707 75 727 55 712 85
85 85
315M 132 423 132 849 90 873 75 971
80 x 170 75
65 x 140 160 513 160 1030 110 1070 90 1170 90
90
315L 200 641 200 1290 90 132 1280 110 1420
85 160 1550 132 1710
100 100
85 x 170 250 802 250 1600 200 1930 160 2070
315 100
315 1010 315 2020 250 2410 110 200 2580 110
355 1140 90 355 2280 315 3040 125 250 3220
110 125
355 75 x 140 95 x 170 400 1280 400 2570 400 3850 315 4060
500 1600 500 3210
125 140 140
560 1790 100 560 3580 450 4330 355 4570
400 80 x 170 110 x 210 630 2020 630 4030 500 4810 400 5150
710 2270 110 710 4540 140 560 5390 450 5790 160
160
800 2560 800 5120 630 6060 500 6420
160
450 90 x 170 120 x 200 900 2880 125 900 5760 710 6830 560 7190
180 180
1000 3200 1000 6400 800 7690 630 8090

The coupling selection is based on an ambient temperature up to 30 °C. For the selection there is a minimum safety factor of 2 of the max.
coupling torque (TKmax.). A detailed selection is possible according to catalogue, page 11 et seqq. Drives with periodical torque curves
must be selected according to DIN 740 part 2. If requested, KTR will perform the selection.
Torque T = rated torque according to Siemens catalogue M 11 · 1994/95..

62 For continuously updated data please refer to our online catalogue at www.ktr.com
POLY-NORM® AR
Flexible couplings

ROTEX®
Two-part

For legend of pictogram please refer to flapper on the cover

120

Components

POLY-NORM®
1 2 1

Size 28-125

POLY
Size 140-280

Components of type AR 1 = standard hub (GJL) 2 = elastomer ring (up to size 180:
NBR 78 Sh-A; from size 200: T-PUR® 84 Sh-A)

POLY-NORM® Type AR
Elastomer ring (part 2) 1) Dimensions [mm] Mass moment AR 3)
torque [Nm] Max. finish
Size General Thread for setscrews of inertia weight
bore Ød 2)
TKN TKmax. LAR l1 s DH D dH N G t [kgm²] 3) [kg]
28 40 80 30 59 28 3 69 46 36,5 12 M5 7 0,0004 0,9
32 60 120 35 68 32 4 78 53 41,5 14 M8 7 0,0008 1,4
38 90 180 40 80 38 4 87 62 50 19,5 M8 10 0,0016 2,0
42 150 300 45 88 42 4 96 69 55,5 20 M8 10 0,0026 2,7
48 220 440 50 101 48 5 106 78 64 24 M8 15 0,0042 3,7
55 300 600 60 115 55 5 118 90 73 29 M8 14 0,0070 5,5
60 410 820 65 125 60 5 129 97 81 33 M8 15 0,0112 6,9
65 550 1100 70 135 65 5 140 105 86 36 M10 20 0,0174 8,8
75 850 1700 80 155 75 5 158 123 100 42,5 M10 20 0,028 13,5
85 1350 2700 90 175 85 5 182 139 116 48,5 M10 25 0,052 19,5
90 2000 4000 95 185 90 5 200 148 128 49 M12 25 0,090 23,2
100 2900 5800 110 206 100 6 224 165 143 55 M12 25 0,160 31,9
110 3900 7800 50-120 226 110 6 250 185 158 60 M16 30 0,317 38,0
125 5500 11000 55-140 256 125 6 280 210 178 70 M16 35 0,570 55,2
140 7200 14400 65-155 286 140 6 315 235 216 76,5 M20 35 1,030 92,6
REVOLEX®

160 10000 20000 75-175 326 160 6 350 265 246 94,5 M20 45 1,746 126,9
180 13400 26800 75-200 366 180 6 400 300 290 111,5 M20 50 3,239 181,8
200 19000 38000 85-200 408 200 8 450 335 - 126 M24 50 5,728 263,7
220 30000 60000 95-220 448 220 8 500 370 - 140 M24 50 9,489 355,9
240 43000 86000 105-240 488 240 8 550 405 - 154 M24 50 14,963 466,3
260 55000 110000 115-260 530 260 10 650 440 - 158 M24 60 29,504 672,2
280 67000 134000 125-280 570 280 10 700 475 - 172 M24 60 42,451 836,6

1)
Standard material Perbunan (NBR) 78 Shore-A, size 140-280 double tooth elastomers. For selection see page 10 et seqq.
2)
Bores H7 with keyway to DIN 6885 sheet 1 [JS9] and thread for setscrews on the feather keyway
3)
Referring to average bore

For continuously updated data please refer to our online catalogue at www.ktr.com 63
POLY-NORM® AR
Flexible couplings

For taper clamping bush

For legend of pictogram please refer to flapper on the cover

80

Components
TB1 TB2

POLY-NORM® for taper clamping bush

Fixing screws 1) Fixing screws 1)
Taper Dimensions [mm] Taper Dimensions [mm]
for taper clamping bush for taper clamping bush
Size clamping Size clamping
max. Size Length SW TA max. Length SW TA
bush bush
d1;d2 l1;l2 [inch] [mm] [mm] [Nm] d1;d2 l1;l2 Size [inch] [mm] [mm] [Nm]
32 1108 25 25,5 1
/₄” 13 3 5,7 75 2517 60 52,5 1
/₂” 25 6 49
42 1210 32 31,0 3
/₈” 16 5 20 85 2517 60 46,5 1
/₂” 25 6 49
1610 40 30,0 3
/₁₆” 16 5 20 3030 75 82 ⁵/₈” 32 8 90
48
1615 40 42,5 3
/₈” 16 5 20 90 3020 75 52,0 ⁵/₈” 32 8 92
60 2012 50 38,5 ⁷/₁₆” 22 6 31 100 3535 90 98,0 1
/₂” 38 10 115
65 2517 60 62,5 1
/₂” 25 6 49 125 4040 100 111,5 ⁵/₈” 45 12 172

Each 2 fastening screws except for 3535/4040 3 fixing screws.

1)

Coupling type TB1 screwing on cam side - TB2 screwing on collar side
Combination possible! Please order our seperate data sheet M407045.

POLY-NORM® 38 AR Ø38 Ø30

Ordering
example: Coupling size Type Finish bore Finish bore

64 For continuously updated data please refer to our online catalogue at www.ktr.com
POLY-NORM® ADR
Flexible couplings

ROTEX®
Three-part

For legend of pictogram please refer to flapper on the cover

80

Components 1 2 4D 3D

POLY-NORM®
Size 38-125 Size 140-280
Components:
Type ADR (Three-part)
1 = Standard hub* (GJL)
Displacement
2 = Elastomer ring (up to size 180 NBR 78 Sh-A; from size 200: T-PUR® 84 Sh-A)
3D = Flange hub (up to size 180: GJS; from size 200: steel) 4D = cam ring (GJL)
* To be preferably used on driving side

POLY-NORM® Type ADR

Dimensions [mm]
Torque of elastomer
Size ring [Nm] 1) Max. finish bore 2) General Thread for setscrew
TKN TKmax d1 d2 LADR l1; l2 s DH D D1 dH N M W G t t1 TA [Nm]
38 90 180 40 34 80 38 4 87 62 48 50 19,5 11,0 12 M8 10 7 10
42 150 300 45 38 88 42 4 96 69 54 55,5 20 12,0 16 M8 10 7 10
48 220 440 50 44 101 48 5 106 78 62 64 24 13,7 16 M8 15 7 10
55 300 600 60 50 115 55 5 118 90 72 73 29 18,7 15 M8 14 14 10
60 410 820 65 56 125 60 5 129 97 80 81 33 22,2 14 M8 15 15 10
65 550 1100 70 60 135 65 5 140 105 86 86 36 26,7 11 M10 20 20 17

POLY
75 850 1700 80 68 155 75 5 158 123 98 100 42,5 27,8 16 M10 20 20 17
85 1350 2700 90 78 175 85 5 182 139 112 116 48,5 33,7 18 M10 25 25 17
90 2000 4000 95 85 185 90 5 200 148 122 128 49 31,5 26 M12 25 25 40
100 2900 5800 110 95 206 100 6 224 165 136 143 55 37,5 28 M12 25 25 40
110 3900 7800 50-120 105 226 110 6 250 185 150 158 60 39,5 30 M16 30 30 80
125 5500 11000 55-140 115 256 125 6 280 210 168 178 70 48,0 35 M16 35 35 80
140 7200 14400 65-155 55-135 286 140 6 315 235 195 216 76,5 47,0 59 M20 35 35 140
160 10000 20000 75-175 65-155 326 160 6 350 265 225 246 94,5 65,0 43 M20 45 45 140
180 13400 26800 75-200 65-175 366 180 6 400 300 255 290 111,5 79,0 33 M20 50 50 140
200 19000 38000 85-200 200 408 200 8 450 335 290 - 126 95 7 M24 50 50 240
220 30000 60000 95-220 220 448 220 8 500 370 320 - 140 103 8 M24 50 50 240
240 43000 86000 105-240 240 488 240 8 550 405 350 - 154 119 1 M24 50 50 240
260 55000 110000 115-260 260 530 260 10 650 440 380 - 158 109 34 M24 60 60 240
280 67000 134000 125-280 280 570 280 10 700 475 410 - 172 109 29 M24 60 60 240

Classification of cylinder screws DIN EN ISO 4762–12.9

Pitch Pitch
Size M x l [mm] Number z D4 [mm] TA [Nm] 3) Size M x l [mm] Number z D4 [mm] TA [Nm] 3)
z x angle z x angle
38 M6x16 5 5x72 62 10 110 M16x40 8 8x45 183 210
42 M8x16 5 5x72 69 25 125 M20x40 8 8x45 202 410
48 M8x20 6 6x60 78 25 140 M20x50 8 8x45 237 410
55 M8x20 6 6x60 88 25 160 M20x55 9 9x40 267 410
60 M8x20 6 6x60 98 25 180 M20x60 10 10x36 304 410
REVOLEX®

65 M10x20 6 6x60 104 49 200 M20x60 10 10x36 342 580

75 M10x25 6 6x60 120 49 220 M24x70 10 10x36 378 1000
85 M12x25 6 6x60 138 86 240 M27x70 10 10x36 416 1500
90 M16x30 6 6x60 149 210 260 M30x90 10 10x36 480 2000
100 M16x30 6 6x60 163 210 280 M30x90 10 10x36 520 2000
1)
Standard material Perbunan (NBR) 78 Shore-A, size 140-280 double tooth elements. For selection see page 10 et seqq.
2)
Bore H7 with feather keyway DIN 6885 sheet 1 [JS9] with thread for setscrews 3) Screw tightening torques acc. to 8.8

POLY-NORM® 65 ADR d1=Ø55 d2=Ø60

Ordering
example: Coupling size Type Finish bore Finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 65
POLY-NORM® BTA and SBA
Flexible couplings

With brake drum/brake disk for brake stop

For legend of pictogram please refer to flapper on the cover

80

Components 1Nd 7N 4D 3D 2 z= number 1Nd 15N 4D 3D 2 1

z= number

Flange hub 3D+4D

interchangeable with
standard hub 1

With standard hub

Brake drum type ADR-BTA Brake disk type ADR-SBA type WAR-BTA or AR-SBA

POLY-NORM® Type AR-BTA, AR-SBA, ADR-BTA and ADR-SBA

Torque of elastomer ring Dimensions [mm]
Size [Nm] 1) Maximum finish bore
D; D1 DH D2 D3 z M1 l1; l2 s L
TKN TKmax. d1 d2 d3
38 90 180 40 34 38 87 61 75 5 x 72° M6 38 4 80
42 150 300 45 38 42 96 68 82 5 x 72° M8 42 4 90
For dimension ØD, ØD1 please refer to our
company catalogue on page 64 and 65

48 220 440 50 44 48 106 77 92 6 x 60° M8 48 5 101

55 300 600 60 50 55 118 88 104 6 x 60° M8 55 5 115
60 410 820 65 56 60 129 96 114 6 x 60° M8 60 5 125
65 550 1100 70 60 65 140 104 122 6 x 60° M10 65 5 135
75 850 1700 80 68 75 158 121 140 6 x 60° M10 75 5 155
85 1350 2700 90 78 85 182 137 160 6 x 60° M12 85 5 175
90 2000 4000 95 85 90 200 146 174 6 x 60° M16 90 5 185
100 2900 5800 110 95 100 224 164 195 6 x 60° M16 100 6 206
110 3900 7800 50-120 105 50-110 250 184 218 8 x 45° M16 110 6 226
125 5500 11000 55-140 115 55-125 280 208 245 8 x 45° M20 125 6 256
140 7200 14400 65-155 55-135 65-140 315 233 276 8 x 45° M20 140 6 286
160 10000 20000 75-175 65-155 75-160 350 263 308 9 x 40° M20 160 6 326
180 13400 26800 75-200 65-175 75-180 400 298 349 10 x 36° M20 180 6 366

POLY-NORM® Type BTA POLY-NORM® Type SBA

POLY- POLY-
Speed
NORM® 38 42 48 55 60 65 75 85 90 100 110 125 140 160 180 Speed NORM® 38 42 48 55 60 65 75 85 90 100 110 125 140 160 180
rpm
size rpm with size
with
ØDBxB v= 60 ØAxG
v= 60
brake Dimensions [mm] C m/s 3) brake Dimensions [mm] N
m/s 3)
drum 2) disk 2)
160x60 4 7150 200x12,5 13,75 5725
200x75 9 8 4 5725 250x12,5 13,75 14,75 18,75 4575
250x95 17 16 20 7 3 0 4575 315x16 13 17 22 26 29 35,5 3625
315x118 25 21 16 12 9 2,5 -3,5 3625 400x16 17 22 26 29 35,5 41,5 42 48 2850
400x150 34 28 25 22 15,5 9,5 9 3 2850 500x16 22 26 29 35,5 41,5 42 48 54 64 2275
500x190 18 12 -2 2275 630x20 46 52 62 69 86 1800
630x236 20 13 -4 1800 710x20 46 52 62 69 86 104 1600
710x265 24 7 -11 1600 800x25 43,5 49,5 59,5 66,5 83,5 101,5 1425
900x25 49,5 59,5 66,5 83,5 101,5 1250
1)
Standard material Perbunan [NBR], for selection see page 10 et seqq.
2)
Steel 3) Dynamic balancing required Other sizes on request

POLY-NORM 38 ®
ADR-BTA Ø200 x 75 d2=Ø32 NnD d3=Ø25 NnD
Ordering
example: Component with Component with
Coupling size Type Ø brake drum
finish bore finish bore

66 For continuously updated data please refer to our online catalogue at www.ktr.com
POLY-NORM® ADR-SB
Flexible couplings

ROTEX®
With brake disk for brake stop

For legend of pictogram please refer to flapper on the cover

80

Components

POLY-NORM®
4Nx 15Nx 3N 2 4D 3D

Components
2 = Elastomer ring
3D = Flange hub
4.D = Cam ring
3N = Driving flange
15Nx = Brake disk
Type ADR-SB with brake disk 4.Nx = Coupling flange

POLY-NORM® Type ADR-SB

Torque of elastomer ring
Max. finish bore [mm] Dimensions [mm] Thread for setscrew
Size [Nm] 1)
TKN TKmax d2 d3 DH N l2 s l11 l12 DF l7 l20 LADR-SB D1 E G t1/t2 TA [Nm]
55 300 600 50 60 118 150 55 5 54,7 136,5 88 24,0 135 249,0 72 57,8 M8 15 10
60 410 820 56 65 129 150 50 5 59,2 136,5 97 25,0 135 255,0 80 59,3 M8 20 10

POLY
65 550 1100 60 70 140 150 65 5 63,7 136,5 105 26,5 135 261,5 86 61,3 M10 20 17
75 850 1700 68 80 158 150 75 5 74,0 136,5 123 31,5 135 276,5 98 66,0 M10 20 17
85 1350 2700 78 90 182 150 85 5 84,7 136,5 139 35,0 135 290,0 112 68,8 M10 25 17
90 2000 4000 85 100 200 150 90 5 89,5 136,5 148 39,5 135 299,5 122 73,5 M12 25 40
100 2900 5800 95 110 224 190 100 6 95,5 177,0 165 43,0 175 354,0 136 81,5 M12 25 40
110 3900 7800 105 120 250 190 110 6 105,5 177,0 185 48,0 175 369,0 150 86,5 M16 30 80
125 5500 11000 115 140 280 195 125 6 120,5 182,0 210 53,0 180 394,0 168 91,5 M16 35 80
140 7200 14400 135 160 315 195 140 6 130,0 182,0 235 60,5 180 416,5 195 104,5 M20 35 140
160 10000 20000 155 180 350 195 160 6 150,0 182,0 265 62,5 180 438,5 225 106,5 M20 45 140

Selection of brake disks and cylinder screws

Cylinder screws DIN EN ISO 4762 for brake disk Cylinder screws DIN EN ISO 4762 for flange hub/cam ring
ØA brake disk [mm]/
Size Tightening torque TA Tightening torque TA
30 mm thick 2) 3) M1 x l Number z1 M2 x l Number z2
[Nm] [Nm]
55 250 — 450 M8x20 6 10 M8x20 6 25
60 250 — 500 M8x20 6 10 M8x20 6 25
65 315 — 500 M8x55 6 35 M10x20 6 49
75 315 — 560 M10x60 6 69 M10x25 6 49
85 355 — 560 M10x60 6 69 M12x25 6 86
90 400 — 710 M12x65 6 120 M16x30 6 210
100 400 — 800 M12x65 6 120 M16x30 6 210
110 450 — 900 M16x75 8 295 M16x40 8 210
REVOLEX®

125 450 — 900 M16x75 8 295 M20x40 8 410

140 500 — 900 M20x80 8 410 M20x50 8 410
160 560 — 900 M20x90 9 410 M20x55 9 410
1)
Standard material Perbunan [NBR], for selection see page 10 et seqq.
2)
Steel
3)
For circumferential speeds exceeding 20 m/s (referring to outside diameter ØDH) dynamic balancing is necessary.
Maximum circumferential speed = 60 m/s (referring to the diameter of brake disk ØA) Other sizes on request.

POLY-NORM 75 ®
ADR-SB Ø500 x 30 3D d2 - Ø60 NnD 4Nx d3 - Ø70 NnD
Ordering
example: Component with Component with
Coupling size Type Brake disk ØA/width
finish bore finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 67
POLY-NORM® AZR
Flexible couplings

Standard drop-out center design coupling

For legend of pictogram please refer to flapper on the cover

80

Components 4N 3N 2 3N 4N

Components:
Type AZR
2 = Elastomer ring (NBR 78 Sh-A)
3N = Driving flange (GJL)
4.N = Coupling flange (Steel)

POLY-NORM® Type AZR

Drop-out Elastomer ring (Teil Dimensions [mm]
Mass moment AZR
center 2)1) Torque [Nm] Max. finish bore Thread for set-
Size General of inertia 3) weight 3)
length* L screw
2)
Ød1 [kgm²] [kg]
[mm] TKN TKmax LAZR l2 l3 s l4 DH DF M Mxl TA [Nm] G t
100 170 49,5 0,0020 2,4
28 40 80 30 35 3 1 69 46 26 M6x18 14 M5 7
140 210 69,5 0,0030 2,9
100 170 49 0,0042 3,2
32 60 120 35 35 4 1 78 53 26 M6x18 14 M8 7
140 210 69 0,0062 3,9
100 184 49 0,0048 4,3
38 90 180 40 42 4 1 87 62 33 M6x20 14 M8 10
140 224 69 0,0068 5,1
100 190 49 0,0094 5,1
42 150 300 45 45 4 1 96 69 35 M6x20 14 M8 10
140 230 69 0,0128 6,0
100 204 49 0,0170 6,6
48 220 440 50 52 5 1,5 106 78 41,5 M6x20 14 M8 15
140 244 69 0,0216 7,5
100 210 49 0,0188 9,4
55 140 300 600 60 250 55 69 5 1,5 118 88 43,5 M8x25 35 M8 14 0,0240 10,8
180 290 89 0,0232 12,2
100 220 49 0,0326 11,2
60 140 410 820 65 260 60 69 5 1,5 129 97 47,5 M8x25 35 M8 15 0,0414 13,0
180 300 89 0,0504 14,6
100 230 49 0,0564 14,0
65 140 550 1100 70 270 65 69 5 1,5 140 105 51,5 M8x25 35 M10 20 0,0730 15,8
180 310 89 0,0894 17,5
140 290 69 0,0824 23,2
75 180 850 1700 80 330 75 89 5 1,5 158 123 60,5 M10x30 69 M10 20 0,1008 25,6
250 400 124 0,1332 29,8
140 310 69 0,1570 32,1
85 180 1350 2700 90 350 85 89 5 1,5 182 139 69,5 M10x30 69 M10 25 0,1658 35,2
250 420 124 0,1812 40,7
140 320 69 0,2466 38,2
90 180 2000 4000 100 360 90 89 5 1,5 200 148 73,5 M12x35 120 M12 25 0,2880 42,2
250 430 124 0,3566 49,3
140 340 69 0,3988 50,0
100 180 2900 5800 110 380 100 89 6 2 224 165 83 M12x35 120 M12 25 0,4450 54,8
250 450 124 0,5465 63,2
1)
Standard material Perbunan [NBR] 78 Shore-A, selection see page 10 et seqq.
2)
Bores H7 with keyway to DIN 6885 sheet 1 [JS9] and thread for setscrews on the feather keyway
3)
Referring to average bore
**For other extendable lengths (L=120/160/195/215) it is possible to combine two driving flanges 3N with various lengths. (As an example: driving flanges POLY-NORM® 85 for extendable
length 140 and 250 result in an extendable length of 195 mm (140 mm + 250 mm = 390 mm 390 mm/2 = 195 mm)

POLY-NORM® 42 AZR 140 Ø38 Ø42

Ordering
example: Coupling size Type Drop-out center length L Finish bore Finish bore

68 For continuously updated data please refer to our online catalogue at www.ktr.com
POLY
Flexible couplings

ROTEX®
Selection of standard IEC motors

POLY-POLY couplings for standard IEC motors, protection IP 54/IP 55

POLY-NORM®
A. C. motor 50 Hz Motor output n= Motor output n= Motor output n= Motor output n=
Shaft end dxl [mm] 3000 rpm 2 poles POLY cou- 1500 rpm 4 poles POLY cou- 1000 rpm 6 poles POLY cou- 750 rpm 8 poles POLY cou-
Size Output P Torque pling size Output P Torque pling size Output P Torque pling size Output P Torque pling size
2 poles 4, 6, 8 poles
[kW] T [Nm] [kW] T [Nm] [kW] T [Nm] [kW] T [Nm]
0,09 0,32 0,06 0,43 0,037 0,43
56 9 x 20
0,12 0,41 0,09 0,64 0,045 0,52
0,18 0,62 0,12 0,88 0,06 0,7
63 11 x 23
0,25 0,86 0,18 1,3 0,09 1,1
8 8 8 8
0,37 1,3 0,25 1,8 0,18 2 0,09 1,4
71 14 x 30
0,55 1,9 0,37 2,5 0,25 2,8 0,12 1,8
0,75 2,5 0,55 3,7 0,37 3,9 0,18 2,5
80 19 x 40
1,1 3,7 0,75 5,1 0,55 5,8 0,25 3,5
90S 1,5 5 1,1 7,5 0,75 8 0,37 5,3
24 x 50
90L 2,2 7,4 1,5 10 1,1 12 0,55 7,9
3 9,8 9 2,2 15 9 9 0,75 11 9
100L 1,5 15
28 x 60 3 20 1,1 16
112M 4 13 4 27 2,2 22 1,5 21
5,5 18 2,2 30
132S 5,5 36 3 30
7,5 25
38 x 80 10 10 10 10
4 40 3 40
132M 7,5 49
5,5 55
11 36 4 54
160M 11 72 7,5 75
42 x 110 15 49 12 5,5 74
12
160L 18,5 60 15 98 11 109 14 7,5 100 14
180M 22 71 18,5 121
48 x 110 14
180L 22 144 15 148 11 145

POLY
30 97 18,5 181
200L 55 x 110 30 196 15 15 15 198 15
37 120 15 22 215
225S 37 240 17 18,5 244 17
55 x 110 60 x 140
225M 45 145 45 292 30 293 19 22 290
19 19
250M 60 x 140 65 x 140 55 177 17 55 356 37 361 30 392
280S 75 241 75 484 45 438 37 483
75 x 140 20 20 20
280M 90 289 19* 90 581 55 535 45 587
315S 110 353 110 707 22 75 727 22 55 712 22
315M 132 423 132 849 90 873 75 971
80 x 170 20* 25 25 25
65 x 140 160 513 160 1030 110 1070 90 1170
315L 200 641 132 1280 110 1420
200 1290 28 28
22* 28 160 1550 132 1710
85 x 170 250 802 250 1600 200 1930 160 2070
315 30
315 1010 315 2020 250 2410 30 200 2580
355 1140 355 2280 30
35
355 75 x 140 95 x 170 400 1280 400 2570 315 3040 250 3220
500 1600 500 3210 400 3850 35 315 4060
560 1790 560 3580 35 450 4330 355 4570
400 80 x 170 110 x 210 630 2020 630 4030 500 4810 400 5150
40
710 2270 710 4540 560 5390 40 450 5790
800 2560 800 5120 630 6060 500 6420
40
450 90 x 170 120 x 210 900 2880 900 5760
REVOLEX®

1000 3200 1000 6400

The coupling selection is based on an ambient temperature up to + 30 °C. The coupling was selected for normal operation. The respective
couplings have a minimum operating factor of f min. = 1,35. Drives with periodical torque courses must be selected according to DIN 740
part 2. If requested, KTR will perform the selection.
Torque T = rated torque according to Siemens catalogue M 11 · 1994/95..
* Dynamic balancing is necessary.

For continuously updated data please refer to our online catalogue at www.ktr.com 69
POLY PKZ and PKD
Flexible couplings

PKZ (two-part) and PKD (three-part)

For legend of pictogram please refer to flapper on the cover

80

Components
1 2Z 1 3D 2D

Components type PKD (D)

Components: Type PKZ (Z) 1 = Cam section * (GJL)
1 = Cam section (GJL) 2D = Flange hub (steel)
2Z = Pocket section * (GJL) 3D = Cam ring (GJL)
* To be used preferable on driving side * * To be used preferably on driving side
Type PKZ (Z) – (Size 8 to 30) Type PKD (D) – (Size 15 to 35)

POLY Type PKZ and PKD

Rated Max. finish bore Ød
Dimensions [mm] Thread for setscrew Weight 3)
Size torque- Max. speed [mm]
1) TKN 2) n [rpm] Part 1 Part 2Z Teil 2D DH D DZ DD l1; l2 MZ MD N E D2 D4(H7/h7) LPKZ/LPKD G t TA [Nm]
[kg]

8 (Z) [Nm]
42 5000 20 28 — 86 43 50 — 35 25 — 3 3 — — 73 M5 18 2 1,7
9 (Z) 72 5000 28 38 — 97 55 65 — 41 30 — 7 3 — — 85 M8 23 10 2,7
10 (Z) 100 5000 32 42 — 107 60 70 — 45 35 — 10 4 — — 94 M8 27 10 3,5
12 (Z) 170 5000 38 48 — 131 70 80 — 55 43 — 12 4 — — 114 M8 30 10 5,4
14 (Z) 210 4800 45 55 — 142 80 93 — 60 46 — 17 4 — — 124 M8 10 10 7,6
15 (Z;D) 320 4300 50 60 50 157 90 100 74,5 65 52 33 21 4 90 75 134 M8 15 10 8,6
17 (Z;D) 400 3800 60 65 60 176 100 110 87 70 56 43,5 26 4 106 90 144 M8 15 10 12
19 (Z;D) 660 3500 75 75 70 195 125 125 106 75 64 48 27 4 126 107 154 M8 15 10 18
20 (Z;D) 820 3300 65 75 70 205 115 127 104 80 65 45 23 4 123 105 164 M8 15 10 20
22 (Z) 1100 3000 85 85 — 224 140 140 — 90 75 — 38 4 — — 184 M10 20 17 25
25 (Z;D) 1600 2700 90 90 95 257 150 150 138 100 84 67 43 5 162 140 205 M12 20 40 35
28 (Z;D) 2500 2350 100 100 110 288 165 165 158 110 90 65 44 5 178 160 225 M12 20 40 53
30 (Z;D) 3950 2200 110 110 110 308 180 180 165 130 108 89 58 5 202 170 265 M16 20 80 66
35 (D) 6100 1850 130 — 145 373 210 — 209 160 — 102 70 5 240 210 325 M16 25 80 125

1 3D 2D

1)
Maximum torque TKmax = TKN x 2; standard material of elastomer: Perbunan (NBR) 92 Shore-A; standard material of hub: GJL
2)
Speeds for v = 30 m/sec. For circumferential speeds exceeding V = 30 m/s, dyn. we recommend dynamic balancing
3)
Referring to average bore

POLY PKD 28 d1Ø90 d2Ø80

Ordering
example: Coupling type Type Size Finish bore part 1 Finish bore part 2

70 For continuously updated data please refer to our online catalogue at www.ktr.com
POLY PKA
Flexible couplings

ROTEX®
Drop-out center design coupling

For legend of pictogram please refer to flapper on the cover

80

Components

POLY-NORM®
1A 1B 2B 2A

Components: Type PKA

1.A/2A = Coupling flange (steel)
1.B = Spacer (GJL)
2B = Driving flange (GJL)
1.A and 1B to be preferably used drive-sided

POLY Type PKA

Rated Max. finish Dimensions [mm] Thread for setscrew
Max. speed Weight
Size torque TKN bore d [mm]
n [rpm] [kg]
[Nm] part 1A/2A DH DF D2 D3 l1, l2 b MA E L LPKA LZ G t TA [Nm]
8 42 5000 38 86 55 70 60 35 1,5 25,5 3 100 170 66 M5 15 2 3,04

POLY
100 182 63 4,26
9 72 5000 45 97 70 85 70 41 1,5 30,5 3 M8 15 10
140 222 103 4,66
100 192 61 5,42
10 100 5000 50 107 78 93 80 46 1,5 35,5 4 M8 20 10
140 232 101 5,88
100 210 55 9,49
12 170 5000 60 131 95 113 90 55 1,5 43,0 4 M8 20 10
140 250 95 10,15
100 220 54 11,46
14 210 4800 70 142 105 125 100 60 1,5 48,0 4 M8 25 10
140 260 94 12,23
140 270 93 15,63
15 320 4300 70 157 110 135 110 65 1,5 49,5 4 M8 25 10
180 310 133 16,50
100 240 53 18,79
17 400 3800 80 176 125 150 110 70 1,5 54,5 4 140 280 93 M8 25 10 19,60
180 320 133 20,41
140 300 81 30,96
20 820 3300 100 205 150 175 130 80 2,0 61,0 4 M8 30 10
180 340 121 32,18
140 340 81 54,73
25 1600 2700 125 257 195 225 150 100 2,0 81,0 5 180 380 121 M12 40 40 56,50
250 450 191 59,60
REVOLEX®

POLY PKA 15 140 Ø38 Ø40

Ordering
example: Drop-out center
Coupling type Type Size Finish bore part 1A Finish bore part 2A
length

For continuously updated data please refer to our online catalogue at www.ktr.com 71
POLY
Flexible couplings

Displacements / elastomer sets / screws

Axial displacement Radial displacement Angular displacement

∆Kw = Emax. - EMin. [mm]

Radial and angular displacements may occur simultaneously.

The combined sum V = ΔKr + (Emax. – Emin.) must not exceed the values listed in the table .

Displacements [mm]
Coupling size 8 9 10 12 14 15 17 19 20 22 25 28 30 35
Max. axial displacement ∆Ka [mm] ±1 ±1 ±1 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±3
Max. radial displacement ΔKr n=750 1/min 0,8 0,8 0,8 0,8 0,8 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,2 1,2
or max. angular displacement n=1000 1/min 0,7 0,7 0,7 0,7 0,7 0,9 0,9 0,9 0,9 0,9 0,9 0,9 1,1 1,1
∆Kw or sum V n=1500 1/min 0,5 0,5 0,5 0,5 0,5 0,7 0,7 0,7 0,7 0,7 0,7 0,7 0,7 0,9

Elastomer sets NBR (building block)

Coupling size 8 9 10 12 14 15 17 19 20 22 25 28 30 35
Set size 1 2 3 3a 4 3b 4Ü 5 6Ü 7Ü
Number of sets 8 10 10 10 10 12 12 12 12 16 16 16 16 20
Dimensions of b 18,4 24,9 27,2 27,7 34,9 29,6 35,1 40 43,3 45,7
elastomer sets t 10 15,3 16,1 18,4 19,6 18,4 22,9 22,2 28,6 25,0
b x t x h [mm] h 18,9 23,9 24,6 26,8 34,6 29,6 35 40,6 41,1 60,0

Type PKD — Dimensions of cyl. screws DIN EN ISO 4762

Coupling size 8 9 10 12 14 15 17 19 20 22 25 28 30 35
M — — — — — M8 M8 M8 M10 M8 M10 M10 M12 M12
Screw size
l — — — — — 30 25 25 30 30 30 40 40 55
No. z — — — — — 6 6 6 6 8 8 8 8 10
Tightening torque TA [Nm] — — — — — 25 25 25 25 25 49 49 86 86
Type PKA — Dimensions of cyl. screws DIN EN ISO 4762
M M6 M6 M6 M8 M8 M10 M10 — M10 — M10 — — —
Screw size
l 16 18 18 20 20 25 25 — 30 — 30 — — —
No. z 4 5 5 5 5 6 6 — 6 — 8 — — —
Tightening torque TA [Nm] 10 10 10 25 25 49 49 — 49 — 49 — — —

Standard bores H7 with feather keyway to DIN 6885 sheet 1 [JS9] and threads for setscrews.
Please see our detailed mounting instructions at our website www.ktr.com.

72 For continuously updated data please refer to our online catalogue at www.ktr.com
REVOLEX®
Flexible pin & bush coupling

ROTEX®
Technical data
REVOLEX® KX-D Technical data
Torque [Nm] NBR 80 Sh-A GJL Steel Dyn. torsion spring stiffness [Nm/rad]
Size Max. speed Max. speed
Rated Max. Vibratory
[rpm] with Max. bore [mm] [rpm] with Max. bore [mm] 0.25xTKN 0.50xTKN 0.75xTKN 1.00xTKN
TKN TKmax. TKW
V=35 m/s V=60 m/s
KX-D 75 3800 7600 1520 – – 4500 90 0,641x106 0,941x106 1,355x106 1,864x106
KX-D 85 5000 10000 2000 – – 4175 100 0,834x106 1,224x106 1,763x106 2,425x106
KX-D 95 6600 13200 2640 – – 3845 110 1,077x106 1,580x106 2,277x106 3,131x106
KX-D 105 8650 17300 3460 2000 110 3475 120 1,404x106 2,060x106 2,967x106 4,081x106
KX-D 120 14110 28220 5640 1800 125 3100 140 1,742x106 2,350x106 3,297x106 4,443x106
KX-D 135 18690 37380 7476 1600 140 2725 160 2,304x106 3,108x106 4,360x106 5,876x106
KX-D 150 23100 46200 9240 1450 160 2500 185 2,880x106 3,885x106 5,450x106 7,345x106
KX-D 170 36900 73800 14760 1250 180 2150 220 4,550x106 6,272x106 1,050x107 1,396x107
KX-D 190 48210 96420 19284 1100 205 1900 245 5,980x106 8,243x106 1,380x107 1,834x107
KX-D 215 61900 123800 24760 1000 230 1725 275 7,634x106 1,052x107 1,762x107 2,342x107
KX-D 240 92030 184060 36812 900 250 1550 310 1,101x107 2,350x107 3,613x107 4,861x107
KX-D 265 121900 243800 48760 800 285 1375 350 1,456x107 3,108x107 4,778x107 6,429x107
KX-D 280 158800 317600 63520 720 315 1225 385 1,896x107 4,047x107 6,221x107 8,371x107
KX-D 305 191060 382120 76424 675 330 1150 405 2,287x107 4,880x107 7,502x107 1,009x108
KX-D 330 251200 502400 100480 625 355 1075 435 3,001x107 6,403x107 9,843x107 1,324x108

POLY-NORM®
KX-D 355 300000 600000 120000 575 380 975 450 3,572x107 7,622x107 1,172x108 1,577x108
KX-D 370 400000 800000 160000 535 450 900 530 4,518x107 9,640x107 1,482x108 1,994x108
KX-D 470 510000 1020000 204000 – – 855 520 6,325x107 1,350x108 2,075x108 2,208x108
KX-D 520 715000 1430000 286000 – – 740 acc. to 8,832x107 1,885x108 2,897x108 3,083x108
KX-D 590 950000 1900000 380000 – – 660 customer’s 1,177x108 2,5107x108 3,859x108 4,107x108
KX-D 650 1220000 2440000 488000 – – 590 request 1,512x108 3,226x108 4,959x108 5,277x108
If requested, coupling is dynamically balanced (semi-key balancing G 6.3 with speed on request of customer). For circumferential speeds exceeding V = 30 m/s, we would recommend dynamic
balancing.

Axial displacement ΔKa Radial displacement ΔKr Angular displacement ∆Kw

POLY
Lmax./min = L + ∆Ka [mm] ∆Kw = Emax. – EMin. [mm]

Displacements
Size (KX and KX-D) 75 85 95 105 120 135 150 170 190 215 240 265 280 305 330 355 370 470 520 590 650
Max. axial displacements ∆Ka [mm] ±1,5 ±1,5 ±1,5 ±2 ±2 ±2 ±2 ±2,5 ±2,5 ±2,5 ±2,5 ±2,5 ±2,5 ±2,5 ±4 ±4 ±4 ±4 ±4 ±4 ±4
250 rpm 0,95 1,1 1,1 1,2 1,3 1,4 1,5 1,7 1,9 2,0 2,2 2,5 2,7 2,9 3,1 3,3 3,5 3,8 4,4 4,9 5,4
500 1/min 0,70 0,80 0,80 0,9 0,9 1,0 1,1 1,2 1,3 1,4 1,6 1,7 1,9 2,0 2,2 2,3 2,5 2,8 3,1 3,5 3,8
Max. radial displacement ∆Kr [mm] or 750 1/min 0,60 0,65 0,65 0,7 0,8 0,8 0,9 1,0 1,1 1,2 1,3 1,4 1,6 1,7 1,8 1,9 2,0 2,2 2,4 – –
max. angular displacements ∆Kw [mm] 1000 1/min 0,50 0,55 0,55 0,6 0,7 0,7 0,8 0,9 0,9 1,0 1,1 1,2 1,4 1,4 1,5 1,7 1,8 – – – –
with speed n 1500 1/min 0,40 0,45 0,45 0,5 0,5 0,6 0,6 0,7 0,8 0,8 0,9 1,0 – – – – – – – – –
2000 1/min 0,35 0,40 0,40 0,4 0,5 0,5 0,5 0,6 0,7 – – – – – – – – – – – –
3000 1/min 0,30 0,35 0,35 0,4 0,4 – – – – – – – – – – – – – – – –

Assembly instructions
REVOLEX®

The above-mentioned permissible displacement figures of the flexible REVOLEX® KX couplings are standard values, considering the coupling load up to the rated torque TKN of the coupling and
an ambient temperature of + 30 °C. Care should be taken to maintain the distance dimension E accurately in order to allow for axial clearance of the coupling while in operation. See KTR mount-
ing instructions, KTR standard 49410 at our homepage www.ktr.com.

For continuously updated data please refer to our online catalogue at www.ktr.com 73
REVOLEX® KX-D
Flexible pin & bush coupling

Casted material

For legend of pictogram please refer to flapper on the cover

80

Components
5 3 6 5

Components type KX-D

5 = Hub part 5
3 = Pins complete
6 = KX-D sleeve (hardened and corrosion-resistant)

REVOLEX® Type KX-D

Finish bore [min. Mass
Torque 1)
[Nm] Max. speed 2) Dimensions [mm] Approx.
Size - max.] moments
[rpm] of inertia 3) weight [kg]
3)
TKN TKmax. d1; d2 L l1; l2 E DH D1; D2 N1; N2 M*
KX-D 105 8650 17300 2000 34-110 237 117 3 330 180 56 76 [kgm²]
0,907 68
KX-D 120 14110 28220 1800 50-125 270 132 6 370 206 76 100 1,867 108
KX-D 135 18690 37380 1600 70-140 300 147 6 419 230 76 100 3,144 145
KX-D 150 23100 46200 1450 82-160 336 165 6 457 256 76 100 4,573 180
KX-D 170 36900 73800 1250 95-180 382 188 6 533 292 92 130 10,259 291
KX-D 190 48210 96420 1100 110-205 428 211 6 597 330 92 130 16,601 385
KX-D 215 61900 123800 1000 125-230 480 237 6 660 368 92 130 25,495 498
KX-D 240 92030 184060 900 140-250 534 264 6 737 407 122 170 50,147 760
KX-D 265 121900 243800 800 160-285 590 292 6 826 457 122 170 80,796 997
KX-D 280 158800 317600 720 180-315 628 311 6 927 508 122 170 129,979 1301
KX-D 305 191060 382120 675 180-330 654 324 6 991 533 122 170 170,016 1509
KX-D 330 251200 502400 625 200-355 666 330 6 1067 572 122 170 227,451 1755
KX-D 355 300000 600000 575 225-450 721 356 9 1156 610 164 220 415,259 2263
KX-D 370 400000 800000 535 225-530 773 382 9 1250 720 164 220 586,686 2701

* Drop-out center dimension

1)
Standard material NBR 80 Shore-A, please observe selection on page 14 et seqq.
2)
Higher speeds on request.
3)
Relating to max. bore
Finish bore acc. to ISO fit H7, feather keyway acc. to DIN 6885 sheet 1 - JS9.
If requested, coupling is dynamically balanced (semi-key balancing G 6.3 with speed on request of customer). For circumferential speeds exceeding V = 30 m/s, we would recommend dynamic
balancing.
= vorgebohrt ab Lager lieferbar

REVOLEX® KX-D 170 GJL Ø120 Ø150

Ordering
example: Size and type of coupling Material Finish bore Finish bore

74 For continuously updated data please refer to our online catalogue at www.ktr.com
REVOLEX® KX-D
Flexible pin & bush coupling

ROTEX®
Material steel

For legend of pictogram please refer to flapper on the cover

80

Components

POLY-NORM®
5 3 6 5

Components
Type KX-D
5 = Hub part 5
3 = Pins complete
6 = KX-D sleeve (hardened and corrosion-resistant)

REVOLEX® Type KX-D

POLY
Finish bore [min. Mass
Torque 1)
[Nm] Dimensions [mm]
Max. speed 2) - max.] moments Approx.
Size
[rpm] of inertia 3) weight 3) [kg]
TKN TKmax. d1; d2 L l1; l2 E DH D1; D2 N1; N2 M*
[kgm²]
KX-D 75 3800 7600 4500 0-90 193 95 3 255 136 56 76 0,325 39
KX-D 85 5000 10000 4175 0-100 213 105 3 274 152 56 76 0,440 46
KX-D 95 6600 13200 3825 0-110 227 112 3 298 168 56 76 0,624 56
KX-D 105 8650 17300 3475 0-120 237 117 3 330 180 56 76 0,907 80
KX-D 120 14110 28220 3100 0-140 270 132 6 370 206 76 100 1,867 124
KX-D 135 18690 37380 2725 70-160 300 147 6 419 230 76 100 3,144 165
KX-D 150 23100 46200 2500 82-185 336 165 6 457 256 76 100 4,573 205
KX-D 170 36900 73800 2150 95-220 382 188 6 533 292 92 130 10,259 322
KX-D 190 48210 96420 1900 110-245 428 211 6 597 330 92 130 16,601 431
KX-D 215 61900 123800 1725 125-275 480 237 6 660 368 92 130 25,495 559
KX-D 240 92030 184060 1550 140-310 534 264 6 737 407 122 170 50,147 833
KX-D 265 121900 243800 1375 160-350 590 292 6 826 457 122 170 80,796 1099
KX-D 280 158800 317600 1225 180-385 628 311 6 927 508 122 170 129,979 1436
KX-D 305 191060 382120 1150 180-405 654 324 6 991 533 122 170 170,016 1669
KX-D 330 251200 502400 1075 200-435 666 330 6 1067 572 122 170 227,451 1954
KX-D 355 300000 600000 975 225-450 721 356 9 1156 610 164 220 415,259 2451
KX-D 370 400000 800000 900 225-530 773 382 9 1250 720 164 220 584,686 2925
KX-D 470 510000 1020000 855 240-520 969 4) 480 4) 9 1340 705 4) 164 220 785,489 3631
KX-D 520 715000 1430000 760 240-520 4) 1089 4) 540 4) 9 1540 780 4) 164 220 1264,725 5155
KX-D 590 950000 1900000 680 260-590 4) 1212 4) 600 4) 12 1735 885 4) 164 220 2081,885 6895
REVOLEX®

KX-D 650 1220000 2440000 610 280-650 4) 1332 4) 660 4) 12 1935 975 4) 164 220 3228,297 8893
* Drop-out center dimension
1)
Standard material NBR 80 Shore-A, for selection see page 14 et seqq. 2) Higher speeds on request. 3) Relating to max. bore 4) Variable according to customer’s requests
Finish bore acc. to ISO fit H7, feather keyway acc. to DIN 6885 sheet 1 - JS9.
If requested, coupling is dynamically balanced (semi-key balancing G 6.3 with speed on request of customer). For circumferential speeds exceeding V = 30 m/s, we would recommend dyn.
balancing.
= vorgebohrt ab Lager lieferbar
REVOLEX® KX-D 170 Stahl Ø120 Ø150
Ordering
example: Size and type of coupling Material Finish bore Finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 75
REVOLEX® KX-D SB
Flexible pin & bush coupling

With brake disk

For legend of pictogram please refer to flapper on the cover

80

REVOLEX® KX-D Type SB

Finish bore KX-D GJL
Torque 1)
[Nm] KX-D Finish bore KX-D [min. - max.] Dimensions [mm]
Size [min. - max.]
TKN TKmax. d1 d2 GJL d1; d2 Steel d1; d2 L l1; l2 E DH D1 N1 N2 N3 M*
105 8650 17300 34-110 34-125 34-110 0-120 237 117 3 330 180 56 29 55 76
120 14110 28220 50-125 50-145 50-125 0-140 270 132 6 370 206 76 45 75 100
135 18690 37380 70-140 70-150 70-140 70-160 300 147 6 419 230 76 45 75 100
150 23100 46200 82-160 82-160 82-185 336 165 6 457 256 76 45 75 100
170 36900 73800 95-180 95-180 95-220 382 188 6 533 292 92 62 91 130
190 48210 96420 110-205 110-205 110-245 428 211 6 597 330 92 62 91 130
215 61900 123800 125-230 125-230 125-275 480 237 6 660 368 92 62 91 145
240 92030 184060 140-250 140-250 140-310 534 264 6 737 407 122 75 121 167

Selection of coupling/brake disk dimension “N”

Brake disk ØA x b3)
Size Ø 560 x 30 Ø 630 x 30 Ø 710 x 30 Ø 800 x 30 Ø 900 x 30 Ø 1000 x 30
KX-D KX-D KX-D KX-D KX-D KX-D
105 47 47
120 42 42
135 57 57
150 75 75
170 82 82
190 105 105
215 131 131 131
240 128 128 128

* Drop-out center dimension

1)
Standard material NBR 80 Shore-A, for selection see page 14 et seqq. 2) Higher speeds on request.
3)
Maximum circumferential speed = 60 m/s referring to maximum outside diameter.
Finish bore according to ISO fit H7, feather keyway acc. to DIN 6885 sheet 1 - JS9.
If requested, coupling is dynamically balanced (semi-key balancing G 6.3 with speed on request of customer). For circumferential speeds exceeding 30 m/s (referring to outside diameter ØA) we
would recommend dynamic balancing.

REVOLEX® KX 170 SB Ø710x30 1 - Ø120 2SB - Ø150

Ordering
example: Size and type of cou-
Type Brake disk Finish bore Finish bore
pling

76 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX®
Components

5 8b 5SB

POLY-NORM®
KX-D

POLY
REVOLEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 77
REVOLEX® KX-D
Flexible pin & bush couplings

Technical data of pins

Coated
sleeve Taper pin design B

KX-D

Technical data
Pin Component 3.2 Component 3.1b Component 3.4b
Tightening
Size No. z Elastomer ring NBR 80 Shore A Pin Screw DIN 931/933
Size torque TA [Nm]
KX-D D l1 l2 d1 L1 L2 M1 SW1
75 3 10
85 3 12
50,0 12,7 9,0 25,40 103 129 M10 16 67
95 3 14
105 3 16
120 4 14
135 4 16 63,0 17,8 12,5 30,60 147,5 178 M12 18 115
150 4 18
170 5 14
190 5 16 85,5 22,9 15,2 43,20 191 220 M16 24 290
215 5 18
240 6 14
265 6 16
280 6 18 113,7 30,5 20,3 58,40 244 290 M24 36 970
305 6 20
330 6 24
355 7 16
370 7 20 150 41 28 75 – 387 M30 46 1950
470 7 22

General information on the elastomer rings

Material Perbunan (NBR) Natural rubber (NR) Perbunan (NBR)
Spider hardness 80 Shore-A 80 Shore-A 80 Shore-A
Permanent temperature range [°C] - 30 to +80 - 50 to +70 - 30 to +80
Max. temperature (short-term) [°C] - 50 to +120 – –
Colour black black blue
Electrically insulating and backlash-free, e. g.
Operating range STANDARD Temperatures below zero
ropeway drives

78 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX®
Assembly/disassembly

Seal screw in this area

1 Unscrew screw 2 [ e. g. with Teflon tape ]

3 Fill the tapped hole with standard

grease for 3/4

The hydraulic pressure is transmit-

ted to the pin displacing it from the
taper fit.

Turn in the the screw

(no special tools required)
4

POLY-NORM®
5

Other types

Type AB Intermediate shaft type with RADEX®-N Backlash-free type

with limited axial backlash

POLY

Type KX-D SD Type KX-D

shiftable with shiftable linkage with cardan shaft connection

connected
REVOLEX®

disconnected

For continuously updated data please refer to our online catalogue at www.ktr.com 79
80
Gear couplings

Types and operating description 82

BoWex® GEARex®
Technical data 84 Type FA, FB and FAB 104
Displacements 85 Type DA, DB and DAB 106
Cylindrical and taper bores Type FH and DH 108
and selection of standard IEC motors 86 Type FR and DR 110
Type junior and junior M plug-in couplings Displacements 112
made of nylon 87 Flange dimensions in accordance with AGMA 9008- 113
Type M, type I and type M…C with explosion protection 88 B00
Type AS and type Spec.-I 89
Type SG, type SSR and type Spec.-I/CD 90
Type SD / SD-D 92
Type SD1 with slip ring and shiftable linkage 94
Type GT 96
Type ZR with a long PA sleeve 97
Type HEW Compact 98
Type M made of corrosion-resistant material 100
Taper bores 102
Spline hubs and inch bores 103

BoWex® GEARex®

81
Gear couplings
Types and operating description

Properties of gear couplings

Product BoWex® GEARex®

Type Curved-tooth gear coupling® All-steel gear coupling
Properties
AGMA 
Torsionally rigid  
Damping vibrations HEW Compact
Maintenance-free 
Axial plug-in 
Compensating for misalignment  
Shear type 
Shear type 
Electric insulation  
Special features
very high average
Variation Extensive basic programme from stock with customized solu- Extensive basic programme from stock with customized solu-
tions also being available tions also being available
Pump drives, general engineering & hydraulics, food indus-
Applications/core industries Heavy engineering, transport, logistics, cement industry, …
try,…
Torque range TKN [Nm]
Max. 2.500 2.750.000
Speed range n [rpm]*
Max. 14.000 8.500
Hub materials available
Nylon 
Quality steel (C45) size 65-125 up to size 85
Alloyed Q & T steel (42CrMo4) from size 90
Powder metal steel
size 14-65
» subject to mould
Stainless steel 
Other special materials possible  
Corrosion-protected types  
Sleeve (standard and special)
Material Polyamide, polyamide with carbon fibre share, natural rubber –
Elastomer highly flexible –
Temperature range [°C] min. / max.
Standard -25 / +100 -20 / + 80
Special -50 / +120 -40 / +120

 ≈ Standard
 ≈ On request
* ≈ Depending on size

82 For continuously updated data please refer to our online catalogue at www.ktr.com
Gear couplings
Types and operating description

Product finder of gear couplings

BoWex®
Product BoWex® GEARex®
Type Curved-tooth gear coupling® All-steel gear coupling
Geometries
Design compact short / compact
Mass moment of inertia low average
Shaft distance dimension very low very low
Types (extract)
Shiftable coupling type SD, SD-1, SD-D, SD-D3 SD
Flange type - FA, FB, FAB, FH, FR
Cover type - DA, DB, DAB, DH, DR
Suitable for horizontal assembly Standard Standard
Suitable for vertical assembly Standard VD
Sleeve can be disassembled radially
GT –
» with no need of displacing driving/driven side
Intermediate shaft type
Junior plug-in coupling, ZR FH, DH
» bridging larger shaft distances
Single-cardanic Junior plug-in coupling, HEW Compact FR, DR
Double-cardanic
» compensating for big displacements Standard Standard
» lower restoring forces
Certifications/type examinations

ATEX  

DNV-GL  

Bureau Vertias 

ABS 

GOST R/ GOST TR 

Curved-tooth gear
 
principle

 ≈ Standard

Details on spline
According to the operating principle of the well-known crowned
Hub with crowned spline (BoWex® and GEARex®)
gear, edge pressure in the spline is avoided with angular and radial
GEARex®

displacements.
sleeve

hub
BoWex®:
The smooth and hard surface of the BoWex® sleeve (crystalline
sleeve structure) and the high thermal stability and resistance to lubri-
cants, fuels, hydraulic fluids, dissolvents, etc. make polyamide an
ideal material for components stressed by sliding, particularly for
the coupling production.
Hub with spur toothing
GEARex®:
sleeve In order to ensure a regular and controlled lubrication in assembled
condition, two connections for hydraulics are arranged opposite to
hub each other radially on each coupling sleeve. As a result a complete
GEARex® coupling has four connections being offset to each other
sleeve
by 90°.

For continuously updated data please refer to our online catalogue at www.ktr.com 83
BoWex®
Curved-tooth gear coupling®

Technical data
Power, Torque and Speed
Torque TK
Power P [kW] / n [rpm] Max. speed
Type and size [Nm]
[1/min]
Rated Max. TKN TK max. TKW
Type junior 14 / M-14 0,0005 0,010 5 10 2,5 6000
plug-in coupling / junior 19 / M-19 0,0008 0,0017 8 16 4 6000
junior M junior 24 / M-24 0,0013 0,0025 12 24 6 6000
Type 14 0,0010 0,003 10 30 5 14000
M 19 0,0017 0,005 16 48 8 11800
l 24 0,0021 0,006 20 60 10 10600
AS 28 0,0047 0,014 45 135 23 8500
Spez.-I 32 0,0063 0,019 60 180 30 7500
SG 38 0,0084 0,025 80 240 40 6700
SSR 42 0,010 0,031 100 300 50 6000
45 / 48 0,015 0,044 140 420 70 5600
65 0,040 0,119 380 1140 190 4000
80 0,073 0,22 700 2100 350 3150
100 0,13 0,38 1200 3600 600 3000
125 0,26 0,78 2500 7500 1250 2120
Type 14 0,0015 0,0047 15 45 7,5 14000
M...C 19 0,0025 0,0075 24 72 12 11800
GT 24 0,003 0,009 30 90 15 10600
28 0,007 0,022 70 210 35 8500
32 0,009 0,028 90 270 45 7500
38 0,013 0,038 120 360 60 6700
48 0,021 0,063 200 600 100 5600
65 0,058 0,18 560 1680 280 4000
type T50 Sh 0,0168 0,0503 150 450 45 7300
HEW Compact 42-130 T65 Sh 0,0188 0,0565 180 540 54 7300
T70 Sh 0,0220 0,0660 210 630 63 7300
T50 Sh 0,0419 0,1257 400 1200 120 5500
65-180 T65 Sh 0,0524 0,1571 500 1500 150 5500
T70 Sh 0,0602 0,1806 575 1725 172 5500
T50 Sh 0,0916 0,2749 875 2625 262 4400
80-225 T65 Sh 0,1152 0,3455 1100 3300 330 4400
T70 Sh 0,1361 0,4084 1300 3900 390 4400
T50 Sh 0,2199 0,6597 2100 6300 630 3200
100-305 T65 Sh 0,2723 0,8168 2600 7800 780 3200
T70 Sh 0,3141 0,9424 3000 9000 900 3200
T50 Sh 0,3141 0,9424 3000 9000 900 2900
125-365 T65 Sh 0,4188 1,2565 4000 12000 1200 2900
T70 Sh 0,5236 1,5707 5000 15000 1500 2900

Thread for setscrew

(Thread dimensions for fixing screws. BoWex® coupling hubs with cylindrical bore)

Position of the thread

for setscrews
BoWex® M-14 to M-24 Position of thread withi BoWex®
opposite to the keyway junior plug-in coupling and
junior M coupling
BoWex® M-28 to I-125
on the keyway

BoWex® – Kupplungsnaben BoWex® junior – Kupplungsnaben

14 28 42
Size Size
19 32 45 65 80 100 125 14 19 24
Dimensions Dimensions
24 38 48
Thread G M5 M8 M10 M10 M12 M16 Thread G M5 M5 M5
15 1) Hub 1b - Distance t 6 6 6
Distance t 6 10 20 30 40
20 Plug-in sleeve 2b - Distance t 8 10 10
Tightening torque TA [Nm] 2 10 17 17 40 80 Tightening torque TA [Nm] 1,4 1,4 1,4

1)
Length of hub 55 mm t = 15 mm, 70 mm t = 20 mm

84 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex®
Curved-tooth gear coupling®

Displacements
BoWex® couplings are double- cardanic and in addition to transmitting the power compensate for axial, radial and angular shaft displacements
in a way to prevent damages from the driving or driven machine, respectively.

Axial displacement Radial displacement Angular displacement Radial- and angular displacement

BoWex®
Displacements – type junior couplings
Type junior plug-in coupling Type junior M
BoWex size
®
14 19 24 14 19 24
Max. axial displacement
±1 ±1 ±1 ±1 ±1 ±1
ΔKa [mm]
Max. radial displacement with n=1500 rpm
± 0,1 ± 0,1 ± 0,1 ± 0,3 ± 0,3 ± 0,4
ΔKr [mm] n=1500 1/min. ΔKr [mm]
Max. radial displacement with n=3000 rpm
± 0,1 ± 0,1 ± 0,1 ± 0,3 ± 0,3 ± 0,4
ΔKr [mm] n=3000 1/min. ΔKr [mm]
Max. angular displacement with n= 1500 rpm
± 1,0 ± 1,0 ± 0,9 ± 1,0 ± 1,0 ± 0,9
ΔKw [degree] n=1500 1/min. ΔKw [Grad]
Max. angular displacement with n= 3000 rpm
± 0,7 ± 0,7 ± 0,6 ± 0,7 ± 0,7 ± 0,6
ΔKw [degree] n=3000 1/min. ΔKw [Grad]

Displacements – type M, I, AS, Spec.-I, SG and SSR

BoWex® size 14 19 24 28 32 38 42 48 65 80 100 125
Max. axial displacement
±1 ±1 ±1 ±1 ±1 ±1 ±1 ±1 ±1 ±1 ±1 ±1
ΔKa [mm]
Max. radial displacement with n=1500 rpm
± 0,30 ± 0,30 ± 0,35 ± 0,35 ± 0,35 ± 0,40 ± 0,40 ± 0,40 ± 0,45 ± 0,45 ± 0,45 ± 0,45
ΔKr [mm] n=1500 1/min. ΔKr [mm]
Max. radial displacement with n=3000 rpm
± 0,20 ± 0,20 ± 0,23 ± 0,23 ± 0,23 ± 0,25 ± 0,25 ± 0,25 ± 0,28 ± 0,28 ± 0,28 ± 0,28
ΔKr [mm] n=3000 1/min. ΔKr [mm]
Max. angular displacement with n= 1500 RPM
± 1,0 ± 1,0 ± 0,9 ± 0,9 ± 0,9 ± 0,9 ± 0,9 ± 0,9 ± 0,7 ± 0,6 ± 0,6 ± 0,4
ΔKw [degree] n=1500 1/min. ΔDKw [Grad]
Max. angular displacement with n= 3000 rpm
± 0,7 ± 0,7 ± 0,6 ± 0,6 ± 0,6 ± 0,6 ± 0,6 ± 0,6 ± 0,5 ± 0,4 ± 0,4 ± 0,3
ΔKw [degree] n=3000 1/min. ΔKw [Grad]

Displacements – Type GT Displacements – Type HEW Compact

BoWex® size 28 38 48 65 42-130 65-180 80-225 100-305 125-365
T50 T65 T70 T50 T65 T70 T50 T65 T70 T50 T65 T70 T40 T52 T65
Max. axial displacement
±1 ±1 ±1 ±1 ±2 ±2 ±2 ±2 ±2
ΔKa [mm]
Max. radial displacement with
±1 ±1 ± 1,4 ± 1,4 ±1,1 ±1 ±0,5 ±1,6 ±1,5 ±0,7 ±1,8 ±1,7 ±2,2 ±2,2 ±2 ±1 ±2,5 ±2,3 ±1,1
n=1500 rpm ΔKr [mm]
Max. radial displacement with n=3000
± 0,6 ± 0,6 ±1 ±1 ±0,55 ±0,5 ±0,25 ±0,8 ±0,75 ±0,35 ±0,9 ±0,85 ±1,1 ±1,1 ±1 ±0,5 ±1,25 ±1,15 ±0,55
GEARex®

rpm ΔKr [mm] n=3000 1/min. ΔKr [mm]

Max. angular displacement with
±1 ±1 ± 0,9 ± 0,9 ±1 ±0,75 ±0,5 ±1 ±0,75 ±0,5 ±1 ±0,75 ±1 ±1 ±0,75 ±0,5 ±1 ±0,75 ±0,5
n= 1500 RPM ΔKw [degree]
Max. angular displacement with
± 0,7 ± 0,7 ± 0,6 ± 0,6 ±0,5 ±0,4 ±0,25 ±0,5 ±0,4 ±0,25 ±0,5 ±0,4 ±0,5 ±0,5 ±0,25 ±0,25 ±0,5 ±0,4 ±0,25
n= 3000 RPM ∆Kw [degree]

The above-mentioned figures of displacement of BoWex® couplings are standard values taking into account the load of the coupling up to the rated torque TKN. With different operating condi-
tions please order our data sheet for displacements of BoWex® KTR-N 20140.
The displacement figures may only be used one by one - if they appear simultaneously, they must be limited in proportion. With assembly of the coupling please make sure that the distance
dimension E is accurately adhered to keep the coupling movable when in operation. Please see our detailed mounting instruction at our homepage (www.ktr.com),

For continuously updated data please refer to our online catalogue at www.ktr.com 85
 BoWex®
Curved-tooth gear coupling®

Cylindrical bores, taper/inch bores see selection of IEC standard motors

Stock programme cylindrical finish bore [mm] H7 feather keyway to DIN 6885 sheet 1 [JS9] with thread for setscrew
BoWex® un-/vor­
Size gebohrt Ø8 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø17 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø75
14       
19           
24              
28             
32           
38             
42              
48            
65             
80        

 Standard length  Standard lengthened

Stock programme taper and inch bores

Taper 1:5 Taper 1:8 Inch bores
Code Ta DNC Ed A G F Bs Hs K
A-10 B-17 C-20 D-25 E-30 N/1 N1d N/2 N/2a N/3
d +0,05 12,7 13,45 15,87 19,05 22,22 22,22 25,38 25,4 31,75
9,85 16,85 19,85 24,85 29,85 9,7 14 17,28 17,28 22
b JS9 3,17 3,17 4,75 4,78 4,75 6,38 6,37 6,35 7,93
2 3 4 5 6 2,4 3 3,2 4 3,99
t +0,2 14,3 14,9 18,1 21,3 24,7 25,2 28,3 28,7 35,4
14   
19   
24        
28        
32  
38    
42        
48
65 
Further dimensions on request.

BoWex® couplings for standard IEC motors, protection class IP 54/IP 55

Motor output with 50 Hz Motor output with 50 Hz Motor output with 50 Hz Cylindrical shaft ends
Rotary current n = 3000 [rpm] n = 1500 [rpm] n = 1000 [rpm] d x l [mm]
motor
Size BoWex® BoWex® BoWex®
kW T [Nm] kW T [Nm] kW T [Nm] 3000 ≤ 1500
coupling coupling coupling
0,09 0,32 0,06 0,43 0,037 0,43 9 x 20
56
0,12 0,41 0,09 0,64 0,045 0,52
0,18 0,62 0,12 0,88 0,06 0,72 11 x 23
63 14 14 14
0,25 0,86 0,18 1,3 0,09 1,1
0,37 1,3 0,25 1,8 0,18 2,0 14 x 30
71
0,55 1,9 0,37 2,5 0,25 2,7
0,75 2,5 0,55 3,7 0,37 3,9
80 19 19 19 19 x 40
1,1 3,7 0,75 5,1 0,55 5,8
90 S 1,5 5,0 1,1 7,5 0,75 8,0
24 24 24 24 x 50
90 L 2,2 7,4 1,5 10 1,1 12
2,2 15
100 L 3 9,8 1,5 15
28 3 20 28 28 28 x 60
112 M 4 13 4 27 2,2 22
5,5 18
132 S 5,5 36 3 30
7,5 25
38 38 38 38 x 80
4 40
132 M 7,5 49
5,5 55
11 36
160 M 11 72 7,5 75
15 49 42 42 42 42 x 110
160 L 18,5 60 15 98 11 108
180 M 22 71 18,5 121
48 48 48 48 x 110
180 L 22 144 15 148
30 97 18,5 181
200 L 30 196 55 x 110
37 120 22 215
225 S 37 240 65 65
55 x 110 60 x 140
225 M 45 145 45 292 30 293
65
250 M 55 177 55 356 37 361 60 x 140 65 x 140
280 S 75 241 75 484 45 438
75 x 140
280 M 90 289 90 581 80 55 535 80
315 S 110 353 110 707 75 727
315 M 132 423 132 849 90 873
80 x 170
160 513 160 1030 110 1070 100 65 x 140
80 100
315 L 200 641 200 1290 132 1280
160 1550
250 801 250 1610 200 1930 125 85 x 170
315
315 1010 100 315 2020 250 2420
125
355 1140 355 2280
355 315 3040 - 75 x 140 95 x 170
400 1280 125 400 2560

^Torque T = rated torque according to Siemens catalogue.

86 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex® junior and junior M
Bogenzahn-Kupplung®

Plug-in coupling made of nylon (two-part and three-part)

BoWex®
For legend of pictogram please refer to flapper on the cover

100

Components
1b 2b 1b 2 1b

Type junior plug-in coupling (two-part) Type junior M coupling three-part)

BoWex® junior plug-in coupling (two-part) and BoWex® junior M (three-part)

Torque Finish bore Dimensions [mm]
TK Hub Plug-in sleeve Max. speed
Size [Nm] part 1b Part 2b DH l1, l2 E1 L1 LH1 M1 F G E L LH M, N [rpm]
TKN TK max. d1 D1 d2 D2
Ø6, Ø7,
22 Ø8 22
14 Ø8, Ø9
5 10 40 23 2 48 40 8 18,5 21,5 4 50 37 6,5 6000
M-14 Ø10, Ø11 25 Ø10, Ø11 25
Ø12, Ø14 26 Ø12, Ø14 26
Ø12, Ø14 27 Ø14, Ø15 29
19
8 16 Ø16 30 47 25 2 52 42 10 19,0 23,0 4 54 37 8,5 6000
M-19
Ø19 32 Ø19 35
GEARex®

Ø10, Ø11,
26
Ø12
Ø14, Ø16 32
Ø14, Ø15,
24 32
12 24 Ø16 53 26 2 54 45 9 21,5 23,5 4 56 41 7,5 6000
M-24
Ø18, Ø19,
36 Ø19, Ø20 36
Ø20
Ø24 38 Ø24 40

BoWex® junior 19 d1 Ø19 d2 Ø14

Ordering
example: Coupling size two-part type or
Finish bore Finish bore
BoWex® junior M-19 three-part type

For continuously updated data please refer to our online catalogue at www.ktr.com 87
BoWex® M, I and M...C
Curved-tooth gear coupling®

Compact and maintenance-free

For legend of pictogram please refer to flapper on the cover

100

Components

1 2 1 1 2 2Ex 1 1 8 2a 1

Type M Type M...C Type I

BoWex® type M, type I and type M...C

Finish bore Mass moment of inertia J with max.
Dimensions [mm] Weight with max. bore Ø
Size d1, d2 bore Ø

Hub
Tip circle
Black Pilot Number length. Sleeve Hub Total Sleeve Hub Total
White max. l1, l2 E L LH M, N l3 D DH Ø DZ
sleeve bored of teeth l1, l2 [kg] [kg] [kg] [kgcm2] [kgcm2] [kgcm2]
sleeve hub
max.

M-14 M-14C - 15 23 4 50 37 6,5 10 25 40 33 20 40 0,03 0,07 0,10 0,08 0,09 0,26

M-19 M-19C - 20 25 4 54 37 8,5 10 32 47 39 24 40 0,03 0,10 0,23 0,15 0,16 0,47
M-24 M-24C - 24 26 4 56 41 7,5 14 36 53 45 28 50 0,04 0,14 0,32 0,21 0,36 0,93
M-28 M-28C - 28 40 4 84 46 19 13 44 65 54 34 55 0,08 0,33 0,74 0,65 1,22 3,09
M-32 M-32C - 32 40 4 84 48 18 13 50 75 63 40 55 0,09 0,43 0,95 1,14 2,17 5,48
M-38 M-38C - 38 40 4 84 48 18 13 58 83 69 44 60 0,13 0,55 1,23 1,58 3,55 8,68
M-42 - 42 42 4 88 50 19 13 65 92 78 50 60 0,14 0,68 1,50 2,32 5,98 14,28
M-48 M-48C - 48 50 4 104 50 27 13 68 95 78 50 60 0,23 0,79 1,81 3,90 7,22 18,34
M-65 M-65C 21 65 55 4 114 68 23 16 96 132 110 42 70 0,55 1,90 4,35 21,2 31,8 84,8
I-80 31 80 90 6 186 93 46,5 20 124 178 145 46 - 1,13 5,20 11,53 68,9 150,8 370,5
I-100 38 100 110 8 228 102 63 22 152 210 176 48 - 1,78 9,37 20,52 158,6 401,3 961,2
I-125 45 125 140 10 290 134 78 30 192 270 225 54 - 3,88 19,44 42,76 562,9 1362,3 3287,5

BoWex® M-28 d1 Ø20 d2 Ø28

Ordering
example: Finish bore Finish bore
Size and type of coupling
H7 keyway to DIN 6885 sheet 1 (JS9) H7 keyway to DIN 6885 sheet 1 (JS9)

88 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex® AS and Spec.-I
Curved-tooth gear coupling®

Compact and maintenance-free

BoWex®
For legend of pictogram please refer to flapper on the cover

100

Components

1 9 10 2c 10 9 1 1 9 10 8 2d 1

Type AS Type Spec.-I

BoWex® type AS and type Spec.-I

Finish bore Mass moment of inertia J with
Pilot bore Dimensions [mm] Weight with max. bore Ø
d1, d2 max. bore Ø
Size Hub
Pilot length. Sleeve Hub Total Sleeve Hub Total
Unbored max. l1, l2 E L LH M, N D DH
bored l1, l2 [kg] [kg] [kg] [kgcm2] [kgcm2] [kgcm2]
max.
24 x - 24 26 4 56 51 2,5 36 58 50 0,11 0,14 0,39 0,38 0,36 1,10
28 x - 28 40 4 84 56 14 44 70 55 0,16 0,33 0,82 1,54 1,22 3,98
stock programme
Finish bores see

32 x - 32 40 4 84 58 13 50 84 55 0,21 0,43 1,07 2,75 2,17 7,09

45 x - 45 42 4 88 60 14 65 100 60 0,27 0,63 1,53 5,49 5,66 16,81
65 - 21 65 55 4 114 84 15 96 140 70 0,84 2,10 5,00 29,83 43,96 117,8
80 - 31 80 90 6 186 93 46,5 124 178 - 1,30 5,20 11,70 83,20 150,8 384,8
100 - 38 100 110 8 228 102 63 152 210 - 2,05 9,40 20,80 184,4 401,3 987,0
125 - 45 125 140 10 290 134 78 192 270 - 4,32 19,44 43,10 620,0 1362,3 3344,6
GEARex®

BoWex® 32 AS d1 Ø32 d2 Ø32

Ordering
example: Size and type of coupling Finish bore Finish bore
AS or Spec.-I H7 keyway to DIN 6885 sheet 1 (JS9) H7 keyway to DIN 6885 sheet 1 (JS9)

For continuously updated data please refer to our online catalogue at www.ktr.com 89
BoWex® SG, SSR and Spec.-I/CD
Curved-tooth gear coupling®

Type with dust protection

For legend of pictogram please refer to flapper on the cover

100

BoWex® type SG
Mass moment of inertia J with max.
Pilot bore Finish bore Dimension [mm] Weight with max. bore Ø
bore Ø
Hub
Size
Pilot length. Sleeve Hub Total Sleeve Hub Total
Unbored min. max. l1, l2 E L LH M, N D DH
bored l1, l2 [kg] [kg] [kg] [kgcm2] [kgcm2] [kgcm2]
max.
24 SG x - 10 24 36 4 76 51 12,5 36 58 50 0,11 0,14 0,39 0,38 0,36 1,1
28 SG x - 10 28 40 4 84 56 14 44 70 55 0,16 0,33 0,82 1,54 1,22 3,98
32 SG x - 12 32 40 4 84 58 13 50 84 55 0,21 0,43 1,07 2,75 2,17 7,09
45 SG x - 20 45 42 4 88 60 14 65 100 60 0,27 0,63 1,53 5,49 5,66 16,81
65 SG - 21 30 65 70 4 144 84 30 96 140 - 0,84 2,1 5 29,83 43,96 117,8
80 SG - 31 35 80 90 6 186 93 46,5 122 175 - 1,3 5,2 11,7 83,2 150,8 384,8
100 SG - 38 40 100 110 8 228 102 63 150 210 - 2,05 9,4 20,8 184,4 401,3 987
125 SG - 45 50 125 140 10 290 134 78 190 270 - 4,32 19,44 43,1 620 1362,3 3344,6

Thread for setscrews for finish bored hubs only.

BoWex® type SSR

Mass moment of inertia J with max.
Pilot bore Finish bore Dimension [mm] Weight with max. bore Ø
bore Ø
Hub
Size
Pilot length. Sleeve Hub Total Sleeve Hub Total
Unbored min. max. l1, l2 E L LH M, N D DH
bored l1, l2 [kg] [kg] [kg] [kgcm2] [kgcm2] [kgcm2]
max.
24 SSR x - 10 22 26 4 56 51 2,5 35 58 50 0,11 0,14 0,39 0,38 0,36 1,1
28 SSR x - 10 26 40 4 84 56 14 42 70 55 0,16 0,33 0,82 1,54 1,22 3,98
32 SSR x - 12 30 40 4 84 58 13 48 84 55 0,21 0,43 1,07 2,75 2,17 7,09
45 SSR x - 20 42 42 4 88 60 14 63 100 60 0,27 0,63 1,53 5,49 5,66 16,81
65 SSR - 21 30 65 55 4 114 84 15 95 140 70 0,84 2,1 5 29,83 43,96 117,8
80 SSR - 31 35 80 90 6 186 93 46,5 120 175 - 1,3 5,2 11,7 83,2 150,8 384,8
100 SSR - 38 40 100 110 8 228 102 63 150 210 - 2,05 9,4 20,8 184,4 401,3 987
125 SSR - 45 50 125 140 10 290 134 78 190 270 - 4,32 19,44 43,1 620 1362,3 3344,6

BoWex® type Spec.-I/CD

Mass moment of inertia J with
Pilot bore Finish bore Dimension [mm] Weight with max. bore Ø
max. bore Ø
Size
Un- Pilot Sleeve Hub Total Sleeve Hub Total
min. max. L L1 LH E E1 l2 l1 DH D M N
bored bored [kg] [kg] [kg] [kgcm2] [kgcm2] [kgcm2]
24 CD x - 10 24 70 73,5 51 4 7,5 26 40 58 36 20 2,5 0,11 0,14 0,39 0,38 0,36 1,1
28 CD x - 10 28 94,5 98 56 4 8,5 40 50,5 70 44 28 14 0,16 0,33 0,82 1,54 1,22 3,98
32 CD x - 12 32 94,5 - 58 4 8,5 40 50,5 84 50 27 13 0,21 0,43 1,07 2,75 2,17 7,09
45 CD x - 20 45 101,5 - 60 4 8,5 42 55,5 100 65 32 14 0,27 0,63 1,53 5,49 5,66 16,81
65 CD - 21 30 65 123 - 84 4 10 55 64 140 96 28,5 15 0,84 2,1 5 29,83 43,96 117,8
80 CD - 31 35 80 179 - 93 6 13 90 83 178 124 44 46,5 1,3 5,2 11,7 83,2 150,8 384,8

For type Spec.-I/CDB with safety pins please order dimension sheet.

BoWex® 45 SG d1 Ø22 d2 Ø40

Ordering
example: Size and type of coupling Finish bore Finish bore
SG, SSR or Spec.-I/CD H7 keyway to DIN 6885 sheet 1 (JS9) H7 keyway to DIN 6885 sheet 1 (JS9)

90 For continuously updated data please refer to our online catalogue at www.ktr.com
Type SG with dust protection circlips
15 16 1c 2e 1c 16 15

BoWex®
Type SSR with supporting circlips
1d 12 2e 1d 11

GEARex®

Type Spec.-I/CD

1 9 10 8 2d 1e

Driven side Driving side

For continuously updated data please refer to our online catalogue at www.ktr.com 91
BoWex® SD / SD-D
Curved-tooth gear coupling®

Shiftable coupling (at standstill)

For legend of pictogram please refer to flapper on the cover

100

BoWex® type SD
Finish bore Weight with Mass moment of inertia
Pilot bore Dimensions [mm]
d1, d2 max. bore Ø J with max. bore Ø
Shifting
Size Shifting Shifting force
Un- Pilot d1 d2 hub with Driving hub hub with Driving hub [N]
d1 E l1 l2 L LH l3 M W N D DH DA
bored bored max. max. sleeve [kg] sleeve [kgcm2]
[kg] [kgcm2]
24 SD x - 24 24 4 26 50 80 52 31 10 19 18 36 58 78 1,08 0,14 8,23 0,36 140
stock programme on page 83

28 SD x - 28 28 4 40 55 99 57 33 21,5 21,5 20,5 44 70 88 1,50 0,33 15,62 1,22 180

Finish bores see

32 SD x - 32 32 4 40 55 99 58 33 20,5 21,5 20,5 50 84 100 1,85 0,43 22,87 2,17 180

45 42 106 21,5 0,68
45 SD x - 45 4 60 63 37 22,5 21,5 65 100 125 2,56 46,07 5,66 250
48 50 114 29,5 0,79
65 SD - 21 65 65 4 55 70 129 77 37 28 25 24 95 140 156 5,07 2,30 158,99 43,96 350
80 SD - 31 80 80 6 90 90 186 96 47 56 35 34 124 175 195 10,60 5,20 523,7 150,8 350
100 SD - 38 100 100 8 110 110 228 113 55 72 43 43 152 210 235 18,87 9,37 1350 401,3 400
125 SD - 45 125 125 10 140 140 290 149 70 89 52 52 192 270 298 40,40 9,44 4919 1362,3 450

Connection dimensions of BoWex® SD shifting ring (comp. 17) for mounting of: slip ring SD1 (s. catalogue on page 87), shifting disk etc.
Dimensions [mm]
Size
L1 L2 zxG s
24 SD 48 58 4 x M6 2
28 SD 48 58 4 x M6 2
32 SD 64 75 4 x M6 2
45 SD 75 90 4 x M8 2
65 SD 100 114 4 x M8 2
80 SD 130 145 4 x M8 3
100 SD 180 196 6 x M10 4
125 SD 220 236 6 x M10 4

Performance data / torques see type M (on page...), max. circumferential speed v=20 m/s, referring to ø DA
Other sizes on request

BoWex® 32 SD d1 Ø32 d2 Ø32

Ordering
example: Finish bore Finish bore
Size and type of coupling
H7 keyway to DIN 6885 sheet 1 (JS9) H7 keyway to DIN 6885 sheet 1 (JS9)

92 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

1 2f 17 1h

engaged

BoWex®
driving side driven side

z = number
disengaged

BoWex® SD

GEARex®

BoWex® SD-D BoWex® SD-D3

For continuously updated data please refer to our online catalogue at www.ktr.com 93
BoWex® SD1
Curved-tooth gear coupling®

Shiftable coupling with shiftable linkage (at standstill)

For legend of pictogram please refer to flapper on the cover

100

BoWex® type SD1 and slip ring

Finish bore Dimensions [mm] Shifting
Size d1 d2 D2±0,1 n±0,1 force
d1 E l1 l2 L LG l4 l5 M W t D DH DA D1 D5 [N]
max. max. (keyway) (keyway)
24 SD1 24 24 4 26 50 80 67 11 46 10 19 16 36 58 78 45 70,5 78 12,5 140
stock programme on page 86

28 SD1 28 28 4 40 55 99 72 11 48 21,5 21,5 16 44 70 88 45 70,5 78 12,5 180

32 SD1 32 32 4 40 55 99 78 13,5 53 20,5 21,5 21 50 84 100 60 89,5 100 17,5 180
Finish bores see

45 42 106 21,5
45 SD1 45 4 60 84 14 58 22,5 22 65 100 125 70 112,5 125 18 250
48 50 114 29,5
65 SD1 65 65 4 55 70 129 103 16 61 26 25 25 96 140 156 96 130,5 145 20,5 350
80 SD1 80 80 6 90 90 186 124 18,5 75 56 35 29 124 175 195 125 164,5 182 25,5 350
100 SD1 100 100 8 110 110 228 152 28 94 72 43 39 152 210 235 174 210,5 230 30,5 400
125 SD1 125 125 10 140 140 290 193 30,5 114 89 52 44 192 270 298 214 250,5 275 35,5 450

BoWex® type SD1 - shiftable linkage

Dimensions
Dimensions [mm]
Shiftable Slip ring with m1 max.
Size
linkage size size m1 m1
a b c d d3 d4 e F g1 L2 L3 m A B m3 m4 m5
min. max.
24 SD1 1 1.1
110 50 18 20 11 16 30 70 55 320 400 75 180 190 90 114 55 16
28 SD1 1 1.1
32 SD1 2 2.2 25 97,5 60 430 450 240 270 111 151 20 80 34
45 SD1 3 3.3 140 20 40 100 140 180
30 120 490 600 280 310 90 44
65 SD1 3 4.4 70 170 210
60 25 13,5
80 SD1 4 5.5 35 50 147,5 565 750 321 365 200 244 100 54
100 SD1 5 6.6 160 30 120 365 250 300 30
40 501) 190 80 630 1085 410 110 62
125 SD1 5 7.7 - 300 350

1)
= With a continuous base plate the dimension „e“ has to be increased by at least 10 mm. The brackets of driving and driven side have to be adapted accordingly.
Also available as type SD-D. Other sizes on request.

Performance data / torques see type M (on page 84), max. circumferential speed v=20 m/s, referring to ø DA

BoWex® 65 SD1 d1 Ø32 d2 Ø32 4.4 3

Ordering
example: Coupling size Finish bore Size of Size of
and type H7 keyway to DIN 6885 sheet 1 (JS9) slip ring shiftable linkage

94 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

BoWex®
driving side driven side

disengaged

GEARex®

engaged

For continuously updated data please refer to our online catalogue at www.ktr.com 95
BoWex® GT
Curved-tooth gear coupling®

Split CFK sleeve for high power density

For legend of pictogram please refer to flapper on the cover

100

Components

BoWex® type GT with split sleeve

Weight with
Finish bore dmax Dimensions [mm] Mass moment of inertia J with max. bore Ø
max. bore Ø
Size
Sleeve Hub Total Sleeve Hub Total
d1 d2 D DH LH l1 l2 l3 E L M, N
[kg] [kg] [kg] [kgcm²] [kgcm²] [kgcm²]
28 28 28 44 80 80 40 40 15 4 84 2 0,158 0,22 0,702 1,77 1,22 4,21
38 38 38 58 98 83 40 40 18 4 84 0,5 0,25 0,45 1,15 4,43 3,36 11,15
48 48 48 68 110 106 50 50 21 4 104 0 0,33 0,67 1,68 7,39 6,11 19,61
65 65 65 96 150 111 55 55 27 4 114 1,5 0,69 1,54 3,77 28,9 31,80 92,5

l3 Drop-out center dimension required

BoWex® GT-28 d1 Ø20 d2 Ø28

Ordering
example: Finish bore Finish bore
Size and type of coupling
H7 keyway to DIN 6885 sheet 1 (JS9) H7 keyway to DIN 6885 sheet 1 (JS9)

96 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex® ZR
Curved-tooth gear coupling®

Bridging larger shaft distances

BoWex®
For legend of pictogram please refer to flapper on the cover

100

Components

BoWex® type ZR
Pilot Finish Torque TK
Dimensions [mm]
bore bore [Nm]

Size Hub
d1 max. length.
l1, l2 LH E LZR total LR D DH di da TKN TK max. TKW
d2 max. l1, l2
max.
14 - 14 23 40 40 3 25 40 21 25 10 20 5
28 - 28 40 55 60 3 as indicated by 44 66 30 26 45 90 23
42 - 42 42 60 85 3 the customer 65 95 40 50 100 200 50
48 - 48 50 60 85 3 68 95 40 50 140 280 70

BoWex® ZR couplings are available up to a length of 2000 mm for serial applications only(nmax. = 1000 rpm)
GEARex®

Lengthened special sleeves available on request

Bridging larger shaft distances
Axial shifting of driving and driven shaft at standstill
Maintenance-free
Compensating for larger displacements
Axial plug-in
Application range from - 25 °C to + 100 °C
BoWex® Spec.-I with lengthened sleeve on request

Type Spec.-I with a long PA-sleeve

For continuously updated data please refer to our online catalogue at www.ktr.com 97
BoWex® HEW Compact
Curved-tooth gear coupling®

Compensating for large displacements, very compact design

For legend of pictogram please refer to flapper on the cover

100

BoWex® type HEW Compact

Max. finish Mass moment of inertia Mass moment of inertia
Dimensions [mm]
bore d Weight with with pilot bored coupling with pilot bored coupling
Size
pilot bored coupling [kg] J1 J2
d1 d2 D1 D2 D4 l1 l2 l3 l4 E L L1 D3 z M [kgm²] [kgm²]

42-130 42 42 90 65 131 42 42 45 37 34 118 98 78 6 M6 3,4 0,003 0,001

65-180 65 65 130 96 180 60 55 55 47 30 145 122 110 8 M10 9 0,014 0,006
80-225 75 80 145 124 225 70 90 77 51 50 210 158 120 10 M12 18,9 0,035 0,029
100-305 100 100 200 152 305 90 110 90 73 58 258 187 175 16 M12 40,2 0,152 0,087
125-365 125 125 235 192 365 120 140 150 90 68 328 240 205 12 M16 75 0,36 0,26

Technical data
Dynamic
Torque Perm. damping power torsion spring Radial
Elastomer Perm. operat- stiffness Relative Resonance
spring
Coupling size hardness ing speed n damping factor
With 10 PKW [W] stiffness Cr [N/
[Shore A] TKmax max. [1/min] ψ VR≈2∏/ψ
TKN [Nm] Hz Ctdyn [Nm/rad] mm]
[Nm]
TKW [Nm] 60 °C 80 °C 90 °C

T50 150 450 45 780 0,6 10,5 178

BoWex 42 HEW Compact T65 180 540 54 7300 24 12 6 2400 0,8 7,9 600

T70 210 630 63 2900 1,2 5,2 710

T50 400 1200 120 2850 0,6 10,5 379

BoWex 65 HEW Compact T65 500 1500 150 5500 48 24 12 7800 0,8 7,9 955

T70 575 1725 173 9500 1,2 5,2 1240

T50 900 2700 270 5000 0,6 10,5 420

BoWex 80 HEW Compact T65 1100 3300 330 4400 96 48 24 13000 0,8 7,9 1090

T70 1300 3900 390 16500 1,2 5,2 1450

T50 2000 6000 600 17000 0,6 10,5 760

BoWex 100 HEW Compact T65 2600 7800 780 3200 156 78 39 44000 0,8 7,9 1850

T70 3000 9000 900 50000 1,2 5,2 2250

T40 3000 9000 900 15000 0,6 10,5 476

BoWex 125 HEW Compact T50 4000 12000 1200 2900 192 96 48 25000 0,8 7,9 750

T70 5000 15000 1500 62000 1,2 5,2 1930

BoWex® 65 HEW Compact T50 d1 Ø40 d2 Ø65

Ordering
example: Coupling size Elastomer Finish bore H7 keyway to Finish bore H7 keyway to
and type hardness DIN 6885 sheet 1 (JS9) DIN 6885 sheet 1 (JS9)

98 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

BoWex®
BoWex® HEW Compact with reduced hub

GEARex®

For continuously updated data please refer to our online catalogue at www.ktr.com 99
BoWex® M
Curved-tooth gear coupling®

Made of corrosion-resistant materials

For legend of pictogram please refer to flapper on the cover

100

BoWex® junior plug-in coupling (two-part) and BoWex® junior M (three-part)

Finish bore Dimensions [mm]
Hub Plug-in sleeve
Size
part 1b part 2b DH l1, l2 E1 E LH1 LH L1 L M1 M, N
d1 D1 d2 D2
Ø6, Ø7, Ø8, Ø9 22 Ø8 22
14
Ø10, Ø11 25 Ø10, Ø11 25 40 23 2 4 40 37 48 50 8 6,5
M-14
Ø12, Ø14 26 Ø12, Ø14 26
Ø12, Ø14 27
19 Ø14, Ø15 29
Ø16 30 48 25 2 4 42 37 52 54 10 8,5
M-19
Ø19 32 Ø19 35
Ø10, Ø11, Ø12 26
Ø14, Ø16 32
24 Ø14, Ø15, Ø16 32
53 26 2 4 45 41 54 56 9 7,5
M-24 Ø18, Ø19, Ø20 36 Ø19, Ø20 36
Ø24 38 Ø24 40

BoWex® type M
Finish bore Dimensions [mm]
Size
d1 max., d2 max. DH D l1, l2 E LH L M, N
M-24 24 53 36 26 4 41 56 7,5
M-38 38 83 58 40 4 48 84 18
M-48 48 95 68 50 4 50 104 27

Other coupling sizes: M24C, M38C, M48C on request. Setscrews with BoWex Junior coupling are made of V4A as a standard.

Applications:
Food industry, print and paper industry, textile industry, sewage technology, wash-mobiles, chemical and pharmaceutical industry,
offshore units, etc. For use in aggressive environment (air, water, chemicals, etc.).

BoWex® M-24 V4A d1 Ø20 d2 Ø24

Ordering
example: Finish bore Finish bore
Size and type of coupling
H7 keyway to DIN 6885 sheet 1 (JS9) H7 keyway to DIN 6885 sheet 1 (JS9)

100 For continuously updated data please refer to our online catalogue at www.ktr.com
Type junior plug-in coupling (two-part) 1b 2b

BoWex®
Type junior M coupling (three-part)
1b 2 1b

Type M V4A
1 2 1
GEARex®

For continuously updated data please refer to our online catalogue at www.ktr.com 101
BoWex®
Curved-tooth gear coupling®

Taper bores
BoWex® with taper bore

tot

LGes = l1 + E + l2K Stock items see page 86

Taper bores 1:5

Counterbore dK and hub length l2K [mm]
Dimensions [mm]
Recess on hub collar D1 x l [mm]
Details of bores 14 19 24 28 32 38 42 48 65
Code
d+0,05 bJS9 t2+0,1 lK dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K
18 23 18 25 25 26 25 26 25 26 25 26
A-10 9,85 2 1,0 11,5
- 30 x 7 30 x 7 30 x 5 - 30 x 5
B-17 16,85 3 1,8 18,5 25 30 28 30 36 40 36 40 36 40 45 42 45 42 45 50
C-20 19,85 4 2,2 21,5 28 36 36 40 36 40 36 40 45 42 45 42 45 50
Cs-22 21,95 3 1,8 21,5 28 36 36 40 36 40 36 40 45 42 45 42
D-25 24,85 5 2,9 26,5 36 40 36 40 36 40 45 42 45 42 45 50
E-30 29,85 6 2,6 31,5 45 55 45 55 45 55 45 55
F-35 34,85 6 2,6 36,5 52 60 55 60
G-40 39,85 6 2,6 41,5 52 60 65 70

Taper bores 1:8

Counterbore dK and hub length l2K [mm]
Dimensions [mm]
Recess on hub collar D1 x l [mm]
Details of bores 14 19 24 28 32 38 42 48 65
Code
d+0,05 bJS9 t2+0,1 lK dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K
9,7 18 26 18 25 25 26 25 30 25 30 25 30
N/1 2,4+0,05 10,85 17
±0,015 23 x 8 23 x 8 23 x 8 23 x 8 - 23 x 8
N/1c 11,6 3JS9 12,90 16,5 18 23 25 26 25 30
N/1e 13 2,4+0,05 13,80 21 25 30 25 30 25 30
20 23 25 30 28 30 28 30 28 40
N/1d 14 3JS9 15,50 17,5
- - - 28 x 10 -
28 35 36 40 36 40 36 40 45 42 45 42 45 50
N/2 17,287 3,2 +0,05
18,24 24
- 35 x 12 - - - - -
28 35 36 40 36 40 36 40 45 42 45 42 45 50
N/2a 17,287 4JS9 18,94 24
- 35 x 12 - - - - -
28 35 36 40 45 42 45 42
N/2b 17,287 3JS9 18,34 24
- - - -
36 40 36 40 36 40 45 42 45 42 45 50
N/3 22,002 4JS9 23,40 28
- - - - - 48 x 14
36 50 36 50 36 50 45 50 45 50 45 62
N/4 25,463 4,78+0,05 27,83 36
- - - 58 x 10 58 x 10 -
N/4b 25,463 5JS9 28,23 36 36 50 45 50 45 50 45 62
N/4a 27 4,78+0,05 28,80 32,5 36 50
N/4g 28,45 6JS9 29,32 38,5 36 60 45 60 45 60
N/5 33,176 6,38+0,05 35,39 44 45 60 45 60 45 60 45 62
N/5a 33,176 7JS9 35,39 44 45 60 45 60 45 62

Taper bores 1:10

Dimensions [mm] Counterbore dK and hub length l2K [mm]
Details of bores 14 19 24 28 32 38 42 48 65
Code
d+0,05 bJS9 t2+0,1 lK dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K dK l2K
CX-20 19,85 5 22,08 32 36 50 36 50 45 50 45 50
DX-25 24,95 6 26,68 45 36 50 45 60 45 60 45 60
EX-30 29,75 8 31,88 50 45 60 45 60 45 70

102 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex®
Curved-tooth gear coupling®

Spline hubs and inch bores

BoWex® spline hubs – basic programme

Spline hub (N) Clamping hub (K)

If it is not possible to fasten the hubs of pump shafts with involute

BoWex®
spline by means of an end plate and a screw, we recommend to use our
spline clamping hub.
The radial clamping ensures a backlash-free tight fit on the pump
shaft.

Spline and clamping hubs to DIN 5480 Spline and clamping hubs to SAE J498
Order Order
Dimensions [mm] designation Dimensions [mm] designation
Size specify cou- Size specify cou-
Type Spline size l1 l2 lS F f pling Type Spline size l1 l2 lS F f pling
size size
N 25x1,25x18 42 - - - - P000205 PH-S ⅝"
K 42 - - - - P558101
42 K 25x1,25x18 42 - - - - P500202 16/32DP, z=9
K 30x2x14 42 - - 60 6 P500203 PI-S ¾"
K - 35 - - - P559101
N 30x2x14 50 - - 60 6 P000206 16/32DP, z=11
48 42
K 30x2x14 50 - - 60 6 P500203 PB-S ⅞"
K 42 - - 60 3 P567101
N 35x2x16 55 - - 60 6 P000303 16/32DP, z=13
K 35x2x16 60 - - 60 6 P500301 PB-BS 1"
K 42 - 27 50 6 P660201
65 N 40x2x18 55 - - 78 6 P000304 16/32DP, z=15
K 40x2x18 60 - - 78 6 P500302 PA-S ⅜"
48 K 50 - 45 52 7 P663301
K 45x2x21 55 - - 78 6 P500401 16/32DP, z=21
PA-S ⅜"
K 55 - 48 52 5 P663301
16/32DP, z=21
65
PC-S 1¼"
K 55 - 44 52 5 P656201
12/24DP, z=14

Inch bores – For stock items see stock programme on page 80

Dimensions [mm] Dimensions [mm] Dimensions [mm]
Code Ød Code Ød Code Ød
Ød b+0,05 t2+0,2 Ød b+0,05 t2+0,2 Ød b+0,05 t2+0,2
[inch] [inch] [inch]
Tb 9,5 +0,03
3/8 3,17 11,1 F 22,22 +0,03
7/8 6,38 25,2 M 34,92 +0,03
1 3/8 7,93 38,6
DNB 11,11M7 7/16 2,4 12,5 Gd 22,225M7 7/8 4,76 24,7 RH1 34,93M7 1 3/8 9,55 37,8
T 12,69H7 1/2 4,75 14,6 Gf 23,80+0,03 15/16 6,35 26,8 Cb 36,50+0,03 1 7/16 9,55 40,9
Ta 12,7+0,03 1/2 3,17 14,3 B 25,37+0,03 1 4,78 27,8 Ca 38,07+0,03 1 1/2 7,93 42,0
DNC 13,45M7 17/32 3,17 14,9 Ba 25,37+0,03 1 6,35 27,6 C 38,07+0,03 1 1/2 9,55 42,5
E 15,87+0,03 5/8 3,17 17,5 Bs 25,38+0,03 1 6,37 28,3 N 41,25+0,03 1 5/8 9,55 45,6
S 15,87+0,03 5/8 3,97 17,9 H 25,40+0,03 1 4,78 27,8 Nb 41,275M7 1 5/8 9,55 45,8
Es 15,88+0,03 5/8 4,0 17,7 DNF 25,38H7 1 6,35 28,4 Ls 44,42+0,03 1 3/4 9,55 48,8
DND 15,852H7 5/8 4,75 18,1 Hs 25,40+0,03 1 6,35 28,7 L 44,45K7 1 3/4 11,11 49,4
Ed 15,87+0,03 5/8 4,75 18,1 Sa 28,575M7 1 1/8 6,35 31,7 Lu 47,625M7 1 7/8 12,7 53,5
GEARex®

DNH 17,465H7 11/16 4,75 19,6 Sb 28,58+0,03 1 1/8 6,35 31,5 Da 49,20+0,03 1 15/16 12,7 55,0
Ad 19,02+0,03 3/4 3,17 20,7 Sd 28,58+0,03 1 1/8 7,93 32,1 Ds 50,77+0,03 2 12,7 56,4
As 19,02+0,03 3/4 4,78 21,3 Ja 31,70H7 1 1/4 7,93 34,4 D 50,80+0,03 2 12,7 55,1
A 19,05+0,03 3/4 4,78 21,3 Jc 31,71+0,03 1 1/4 7,93 35,3 P 53,95+0,03 2 1/8 12,7 59,6
Fa 22,20+0,03 7/8 6,35 25,2 Js 31,75+0,03 1 1/4 6,35 34,6 Pa 53,975M7 2 1/8 12,7 60,0
Ga 22,21H7 7/8 4,75 24,8 J 31,75+0,03 1 1/4 7,93 34,4 Ub 60,325M7 2 3/8 15,875 67,6
DNI 22,228H7 7/8 6,35 25,0 K 31,75K7 1 1/4 7,93 35,5 Wa 73,025M7 2 7/8 19,05 81,7
Gs 22,22+0,03 7/8 4,78 24,4 DNK 31,755H7 1 1/4 7,93 35,3 Wd 85,725M7 3 3/8 22,225 95,8
G 22,22+0,03 7/8 4,75 24,7 Ma 34,925M7 1 3/8 7,93 38,7 Wf 92,075M7 3 5/8 22,225 101,9

The splines and inch bores specified are only a part of KTR’s options. Many other variants are available, too.

For continuously updated data please refer to our online catalogue at www.ktr.com 103
GEARex® FA, FB and FAB
All-steel gear couplings

Coupling in accordance with AGMA 9008-B00, high power density

For legend of pictogram please refer to flapper on the cover

80

Dimensions
Max. finish bore Dimensions [mm] Grease
Size Pilot bore Hub lengthened feeding
d1; d2 l1, l2 EFA EFB EFAB LFA LFB LFAB L3 D DA1 DA2 F 1) d3 1) [dm3] 2)
max l1, l2
10 26 50 43 105 3 21 12 89 107 98 55 67 111 84 74 52 0,02
15 26 64 50 115 3 15 9 103 115 109 59 87 152 107 84 68 0,04
20 31 80 62 130 3 31 17 127 155 141 79 108 178 130 104 85 0,08
25 38 98 76 150 5 29 17 157 181 169 93 130 213 158 123 110 0,12
30 44,5 112 90 170 5 33 19 185 213 199 109 153 240 182 148 130 0,18
35 46 133 105 185 6 40 23 216 250 233 128 180 280 214 172 150 0,22
40 52 158 120 215 6 42 24 246 282 264 144 214 318 250 192 175 0,35
45 80 172 135 245 8 50 29 278 320 299 164 233 347 274 216 190 0,45
50 80 192 150 295 8 56 32 308 356 332 182 260 390 309 241 220 0,70
55 90 210 175 300 8 70 39 358 420 389 214 283 425,5 334 275 250 0,90
60 100 232 190 305 8 84 46 388 464 426 236 312 457 365,5 316 265 1,15
70 100 276 220 310 10 76 43 450 516 483 263 371 527 425 360 300 1,50

Technical data
Torque [Nm] max. Drehzahl Weight with max. bore [kg] Mass moment of inertia with Dowel screw (10.9)
Size
TKN TKN (42CrMo4) [1/min] Sleeve Hub Total max. bore [kgm²] z M TA [Nm]
10 930 1580 8500 0,75 0,55 2,73 0,00436 6 M6 15
15 2000 3300 7700 1,88 1,12 6,38 0,01894 8 M8 36
20 3500 6300 6900 2,60 2,09 9,94 0,04000 6 M10 72
25 6500 11000 6200 4,43 3,56 16,83 0,09749 6 M12 125
30 10000 17400 5800 5,83 6,18 25,21 0,18080 8 M12 125
35 17000 28800 5100 9,71 9,87 41,25 0,41419 8 M14 200
40 28500 48500 4500 11,88 16,07 58,14 0,75535 8 M14 200
45 37000 62000 4000 15,72 21,42 77,08 1,17590 10 M14 200
50 51000 86000 3750 25,66 29,59 114,40 2,24991 8 M18 430
55 65000 110000 3550 31,52 40,30 150,41 3,45102 14 M18 430
60 85000 145000 3400 32,82 52,96 177,44 4,16734 14 M18 430
70 135000 240000 3200 43,52 85,77 268,20 9,32429 16 M20 610

= Standard
1)
Space required to align the coupling or replace the sealing ring
2)
Grease feeding for each coupling half

GEARex® FA 10 d1 Ø50 d2 Ø50

Ordering
example: Finish bore with keyway to DIN 6885 Finish bore with keyway to DIN 6885
Size and type of coupling
sheet 1 sheet 1

104 For continuously updated data please refer to our online catalogue at www.ktr.com
Type FA

BoWex®
Type FB

Type FAB
GEARex®

For continuously updated data please refer to our online catalogue at www.ktr.com 105
GEARex® DA, DB and DAB
All-steel gear couplings

Easy to assemble, high power density

For legend of pictogram please refer to flapper on the cover

80

Dimensions
Max. finish bore Dimensions [mm] Grease feed-
Size Pilot bore
d1; d2 l1, l2 EDA EDB EDAB LDA LDB LDAB L3 D DA1 DA2 F 1) d3 1) ing [dm3] 2)
20 31 80 62 3 31 17 133 155 144 79 108 187 146 105 85 0,08
25 38 98 76 5 29 17 157 181 169 93 130 220 172 115 105 0,12
30 44,5 112 90 5 33 19 185 213 199 109 153 248 182 140 120 0,18
35 46 133 105 6 40 23 216 250 233 128 180 285 214 165 145 0,22
40 52 158 120 6 42 24 246 282 264 144 214 335 250 180 160 0,35
45 80 172 135 8 50 29 278 320 299 164 233 358 294 195 185 0,45
50 80 192 150 8 56 32 388 356 332 182 260 390 309 215 205 0,70
55 90 210 175 8 70 39 358 420 389 214 283 425,5 348 240 220 0,90
60 100 232 190 8 84 46 388 464 426 236 312 457 380 260 245 1,15
70 100 276 220 10 76 43 450 516 483 263 371 527 445 300 290 1,50
80 140 300 280 10 50 30 570 610 590 310 394 545 475 340 310 2,50
85 160 325 292 13 53 33 597 637 617 325 430 585 515 352 330 3,00
90 180 350 305 13 83 48 623 693 658 353 464 640 560 365 360 4,00
100 220 390 330 13 93 53 673 753 713 383 512 690 612 390 400 5,00
110 220 420 350 20 296 158 720 996 858 508 560 765 665 410 420 6,00
120 260 450 420 25 421 223 864 1261 1063 643 608 825 720 480 470 7,50
130 300 500 440 25 415 220 905 1295 1100 660 684 950 805 520 520 9
140 380 580 460 20 430 225 940 1350 1145 685 750 1010 875 570 590 12
150 460 660 520 30 460 245 1070 1500 1285 765 850 1140 975 630 670 15

Technical data
Torque [Nm] Max. speed [1/ Weight with max. bore [kg] Mass moment of inertia with Dowel screw (10.9)
Size
TKN TKN (42CrMo4) min] Sleeve Hub Total max. bore [kgm²] z M TA [Nm]
20 3500 6300 6900 3,6 2,1 12,8 0,056 6 M10 72
25 6500 11000 6200 5,5 3,6 20,3 0,125 6 M12 125
30 10000 17400 5800 6,9 6,2 28,9 0,219 8 M12 125
35 17000 28800 5100 11,2 9,8 46,6 0,488 8 M14 200
40 28500 48500 4500 16,3 15,9 70,9 1,011 8 M14 200
45 37000 62000 4000 20,2 21,4 90,7 1,482 10 M14 200
50 51000 86000 3750 27,0 29,5 123,5 2,474 8 M18 430
55 65000 110000 3550 32,6 40,2 159,1 3,714 14 M18 430
60 85000 145000 3400 32,0 52,8 184,4 4,810 14 M18 430
70 135000 240000 3200 43,8 85,5 280 9,907 16 M20 610
80 175000 300000 1900 64 117 362 14,214 18 M20 610
85 225000 380000 1900 75 148 446 20,320 20 M20 610
90 290000 500000 1700 101 183 568 31,036 20 M24 1000
100 380000 650000 1600 117 232 698 45,358 24 M24 1000
110 480000 820000 1450 140 295 940 73,880 20 M30 1700
120 620000 1050000 1350 188 430 1312 118,40 24 M30 1700
130 - 1450000 1150 319 603 1954 226,732 20 M36 2800
140 - 1950000 1050 373 758 2391 328,567 24 M36 2800
150 - 2750000 950 475 983 3069 540,298 30 M36 2800

= Standard
1)
Space required to align the coupling or replace the sealing ring
2)
Grease feeding for each coupling half

GEARex® DA 80 d1 Ø300 d2 Ø300

Ordering
example: Finish bore with keyway to DIN 6885 Finish bore with keyway to DIN 6885
Size and type of coupling
sheet 1 sheet 1

106 For continuously updated data please refer to our online catalogue at www.ktr.com
Type DA

BoWex®
Type DB

Type DAB
GEARex®

For continuously updated data please refer to our online catalogue at www.ktr.com 107
GEARex® FH and DH
All-steel gear coupling

Large shaft distance dimension, high power density

For legend of pictogram please refer to flapper on the cover

80

Dimensions
Max. finish
Torque [Nm] Dimensions [mm] Dowel screw (10.9) Grease
bore
Size Pilot bore feeding
Lengthened hub
TKN TKN (42CrMo4) d1; d2 l1, l2 D DA1 3)
DA2 3)
LH EH F 1)
d3 1)
z M TA [Nm] [dm3] 2)
max. l1, l2
10 930 1580 26 50 43 105 67 111 84 74 52 6 M6 15 0,02
15 2000 3300 26 64 50 115 87 152 107 84 68 8 M8 36 0,04
20 3500 6300 31 80 62 130 108 178 130 104 85 6 M10 72 0,08
25 6500 11000 38 98 76 150 130 213 158 123 110 6 M12 125 0,12
30 10000 17400 44,5 112 90 170 153 240 182 148 130 8 M12 125 0,18
35 17000 28800 46 133 105 185 180 280 214 172 150 8 M14 200 0,22
40 28500 48500 52 158 120 215 214 318 250 192 175 8 M14 200 0,35

As indicated by the customer

45 37000 62000 80 172 135 245 233 347 274 LH = EH + l1 + l2 216 190 10 M14 200 0,45
50 51000 86000 80 192 150 295 260 390 309 241 220 8 M18 430 0,70
55 65000 110000 90 210 175 300 283 425,5 334 275 250 14 M18 430 0,90
60 85000 145000 100 232 190 305 312 457 365,5 316 265 14 M18 430 1,15
70 135000 240000 100 276 220 310 371 527 425 360 300 16 M20 610 1,50
80 175000 300000 140 300 280 - 394 545 475 340 310 18 M20 610 2,50
85 225000 380000 160 325 292 - 430 585 515 352 330 20 M20 610 3,00
90 290000 500000 180 350 305 - 464 640 560 365 360 20 M24 1000 4,00
100 380000 650000 220 390 330 - 512 690 612 390 400 24 M24 1000 5,00
110 480000 820000 220 420 350 - 560 765 665 410 420 20 M30 1700 6,00
120 620000 1050000 260 450 420 - 608 825 720 480 470 24 M30 1700 7,50
130 - 1450000 300 500 440 - 684 950 805 520 520 20 M36 2800 9,00
140 - 1950000 380 550 460 - 750 1020 875 570 590 24 M36 2800 12,00
150 - 2750000 460 630 520 - 850 1140 975 630 670 30 M36 2800 15,00

= Standard
1)
Space required to align the coupling or replace the sealing ring
2)
Grease feeding for each coupling half
3)
For dimension type F see page 100. For type D see page 102.

GEARex® FH 10 d1 Ø50 d2 Ø50 250

Ordering
example: Finish bore with keyway to Finish bore with keyway to
Size and type of coupling Shaft distance dimension EH
DIN 6885 sheet 1 DIN 6885 sheet 1

108 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

BoWex®
Types

Type FH Type DH

GEARex®

For continuously updated data please refer to our online catalogue at www.ktr.com 109
GEARex® FR and DR
All-steel gear couplings

Single-cardanic, high power density

For legend of pictogram please refer to flapper on the cover

80

Dimensions
Maximum finish
Torque [Nm] Dimensions [mm] Dowel screw (10.9) Grease
bore
Size feeding
TKN Lengthened hub
TKN d1 d4 l1, l2 D DA1 DA2 DF LR F 1)
d3 1)
z M TA [Nm] [dm3]
(42CrMo4) max. l1, l2
10 930 1580 50 60 43 105 67 111 84 84 88 74 52 6 M6 15 0,02
15 2000 3300 64 78 50 115 87 152 107 107 103 84 68 8 M8 36 0,04
20 3500 6300 80 95 62 130 108 178 130 130 127 104 85 6 M10 72 0,08
25 6500 11000 98 115 76 150 130 213 158 158 157 123 110 6 M12 125 0,12
30 10000 17400 112 135 90 170 153 240 182 182 185 148 130 8 M12 125 0,18
35 17000 28800 133 155 105 185 180 280 214 214 216 172 150 8 M14 200 0,22
40 28500 48500 158 185 120 215 214 318 250 250 244 192 175 8 M14 200 0,35
45 37000 62000 172 200 135 245 233 347 274 274 276 216 190 10 M14 200 0,45
50 51000 86000 192 225 150 295 260 390 309 309 305 241 220 8 M18 430 0,70
55 65000 110000 210 245 175 300 283 425,5 334 334 356 275 250 14 M18 430 0,90
60 85000 145000 232 265 190 305 312 457 365,5 365,5 386 316 265 14 M18 430 1,15
70 135000 240000 276 310 220 310 371 527 425 425 450 360 300 16 M20 610 1,50
80 175000 300000 300 340 280 - 394 545 475 462 570 340 310 18 M20 610 2,50
85 225000 380000 325 370 292 - 430 585 515 500 597 352 330 20 M20 610 3,00
90 290000 500000 350 400 305 - 464 640 560 546 623 365 360 20 M24 1000 4,00
100 380000 650000 390 440 330 - 512 690 612 594 673 390 400 24 M24 1000 5,00
110 480000 820000 420 480 350 - 560 765 665 647 710 410 420 20 M30 1700 6,00
120 620000 1050000 450 520 420 - 608 825 720 700 852 480 470 24 M30 1700 7,50
130 - 1450000 500 560 440 - 684 950 805 760 890 520 520 20 M36 2800 9,00
140 - 1950000 550 610 460 - 750 1020 875 835 930 570 590 24 M36 2800 12,00
150 - 2750000 630 690 520 - 850 1140 975 935 1055 630 670 30 M36 2800 15,00

= Standard
1)
Space required to align the coupling or replace the sealing ring

GEARex® FR 10 d1 Ø50 d4 Ø60

Ordering
example: Finish bore with keyway to DIN 6885 Finish bore with keyway to DIN 6885
Size and type of coupling
sheet 1 sheet 1

110 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

BoWex®
Types

Type FR Type DR

GEARex®

For continuously updated data please refer to our online catalogue at www.ktr.com 111
GEARex®
All-steel gear couplings

Displacements

Axial displacement Radial displacement Angular displacement

Displacements
Max. permissible displacements 1)
Size Max. axial displacement ΔKa [mm]
ΔKr [mm] ΔKw [°]
10 ± 0,4
15 ± 0,5
20 ± 0,6
25 ± 1,0 ± 0,8
30 ± 1,0
35 ± 1,0
40 ± 1,2
45 ± 1,4
50 ± 1,6
55 ± 1,5 ± 1,8
60 ± 2,0 0,5° per hub
70 ± 2,2
80 ± 2,5
85 ± 2,8
90 ± 2,0 ± 3,0
100 ± 3,2
110 ± 4,4
120 ± 5,5
130 ± 5,7
140 ± 2,5 ± 6,0
150 ± 6,6

1)
The displacement figures are maximum figures which must 100%

not occur in parallel. If both radial and angular displacement

90%
arises at the same time, these figures have to be reduced (see
examples of calculation and diagramme). 80%
Angular displacement ΔKw % 

70%

60%

50%

Example 1: 40%
ΔKr = 30%
ΔKw =70% 30%

Example 2: 20%

ΔKr = 60%
10%
ΔKw = 40%

10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Radial displacement ΔKr % 

112 For continuously updated data please refer to our online catalogue at www.ktr.com
GEARex®
All-steel gear couplings

Flange dimensions in accordance with AGMA 9008-B00

z= number

BoWex®
Flange dimensions
Dimensions [mm]
Size
DA1 DA2 D2 D3 dl Number z l3 l5
10 111 84 82 95,25 6,35 6 14 3
15 152 107 105 122,24 9,52 8 19 3
20 178 130 130 149,23 12,70 6 19 3
25 213 158 153 180,97 15,87 6 22 4
30 240 182 178 206,38 15,87 8 22 4
35 280 214 205 241,30 19,05 8 28,5 5
40 318 250 243 279,40 19,05 8 28,5 4
45 347 274 265 304,80 19,05 10 28,5 5,5
50 390 309 302 342,90 22,22 8 38 6
55 425,5 334 320 368,30 22,22 14 38 6
60 457 365,5 353 400,05 22,22 14 26 6
70 527 425 412 463,55 25,40 16 28,5 8

Other types

Type SD Type with brake disk Type VD (vertical assembly)

GEARex®

For continuously updated data please have a look at our online catalogue at www.ktr.com 113
114
Backlash-free servo couplings

Types and operating description 116

ROTEX® GS TOOLFLEX®
Structure and operation 118 Technical data 144
Technical data and displacements 120 Type S and M with thread for setscrews 146
Hub designs 124 Type M with clamping hubs 150
Basic programme 125 Type S with clamping hubs 148
Standard types 126 Type KN 152
Type Compact 128 Type PI 154
Type clamping ring hubs light 130 Type CF 156
Type clamping ring hubs steel 131
Type P according to DIN 69002 132
Type with expansion hub for RADEX®-NC
hollow shaft connections 134 Technical data 158
Type A-H drop-out center design couplings 136 Standard types 159
Type DKM (double-cardanic) 138
Intermediate shaft coupling 140
COUNTEX®
Double-cardanic for measuring drives 160

ROTEX® GS TOOLFLEX® RADEX®-NC COUNTEX®

115
Backlash-free servo couplings
Types and operating description

Properties of backlash-free couplings

Product ROTEX® GS TOOLFLEX® RADEX®-NC COUNTEX®

Type Jaw-type coupling Metall bellow-type coupling Servo lamina coupling Shaft encoder coupling
Properties
Backlash-free    
Torsionally rigid   
Damping vibrations 
Maintenance-free    
Axial plug-in  optional 
Compensating for misalignment    
Electric insulation  
Fail-safe   
Shear type 
Special features
Applications Backlash-free drives

Machine tools, Drive technology, Automation technology,

automation technology, automation technology, drive technology, Automation technology,
Core industries drive technology, medical technology, packaging technology, drive technology,
medical technology, packaging technology, machine tools, medical technology
packaging technology machine tools medical technology

Main spindles Gearboxes

Control & positioning technology Gearboxes Measuring & testing technology
Measuring & control technology
Applications Gearboxes Miniature drives Miniature drives
Miniature drives
Measuring & testing technology Control & positioning technology Control & positioning technology
Miniature drives Main spindles

Variation of components very high average low low

Torque range TKN [Nm]
Min. 0,2 0,1 2,5 0,3
Max. 5.850 600 300 1,0
Max. circumferential speed v [m/s]

depending on hub type up to 40

Steel 35 –
80 (type P) depending on hub type up to 40

Aluminium depending on hub type up to 50 35 40

Torsion spring stiffness CT [Nm/rad]

Up to 1.308.850 322.740 240.000 235
Radial spring stiffness CR [Nm/rad]
Up to 20.290 1.365 70
Spiders / bellow / laminas / spacer
Material Polyurethane, Hytrel Stainless steel Stainless steel PEEK
Elastomer hardness flexible to torsionally rigid - - torsionally rigid
- 30 / + 100
(bonded)
Temperature range [°C] min. / max. - 50 / + 120 - 30 / + 200 - 40 / + 160
- 30 / + 200
(flanged/welded)

 ≈ Standard

116 For continuously updated data please refer to our online catalogue at www.ktr.com
Backlash-free servo couplings
Types and operating description

ROTEX® GS
Product finder of backlash-free couplings

Product ROTEX® GS TOOLFLEX® RADEX®-NC COUNTEX®

Type Jaw-type coupling Metall bellow-type coupling Servo lamina coupling Shaft encoder coupling
Geometries
Design compact compact, short compact, short short
Mass moment of inertia low low low low
Shaft distance dimension average average average low
Shaft-hub-connection
Positive locking  optional optional optional
Non-positive (frictionally engaged)    

TOOLFLEX®
Types (extract)
Elastomers can be disassembled radially
A-H - - -
» with no need of displ. driving/driven side
Intermediate shaft type
ZR1, ZR2, ZR3 - - -
» bridging larger shaft distances
Shaft-to-shaft connection standard standard standard standard
Flange-to-shaft connection CFN, DFN, CF-DKM CF - -
Flange-to-flange connection
Optional Optional - -
» particularly short mounting lengths
Single-cardanic standard - EK -
Double-cardanic
» compensating for big displacements DKM standard DK standard
» lower restoring forces
Certifications

ATEX   

Clean room   

RADEX®-NC
 ≈ Standard

Twist angle
The diagram alongside this text clarifies the influence of ROTEX®, Torque
Sense of rotation left

ROTEX ® GS, RADEX ®-NC and TOOLFLEX ® couplings

ROTEX® ROTEX® GS TOOLFLEX®/RADEX®-NC
regarding backlash and torsion angle. Due to the high stiffness of
RADEX®-NC and TOOLFLEX® the torsion angle is very low under
torque. However, contrary to the flexible ROTEX® and the backlash-

free ROTEX® GS a damping of torsional vibrations etc. is not possible.
COUNTEX®


Sense of rotation right

Backlash Backlash = 0 Backlash = 0

Twist angle Twist angle Twist angle

For continuously updated data please refer to our online catalogue at www.ktr.com 117
ROTEX® GS
Backlash-free jaw couplings

Technical description
ROTEX ® GS is a three-part, axial plug-in coupling backlash-free
under prestress. It is convincing even with critical applications by its
backlash-free power transmission, its stiffness which is each adapted to the
application and its optimum damping of vibrations. This principle of installation
offers significant assembly possibilities which optimize the assembly times in
production.

ROTEX® GS (straight tooth, backlash-free)

The straight spline of the spider mounted under prestress results in a smaller surface pressure and consequently higher stiffness of the
coupling system. The flexible teeth compensate for misalignment but are supported radially in the inside diameter by a central web. This
avoids too high internal or external deformation by high acceleration or high speeds. This is vital for a smooth operation and long service
life of the coupling.
The pegs arranged reciprocally on the spider prevent the spider from touching the hub over the entire surface. Observing the distance
dimension E ensures the ability of the coupling to compensate for displacements.
By observing the gap dimension „s“ the electrical insulation is ensured, as well as a high service life of the coupling. This fact is gaining
more and more importance, due to the increasing precision of shaft encoders and the existing demand for electro-magnetic compatibility.

Limitation by concave cams in case of too high speeds/centrifu- Electric insulation due to
gal forces and prestress of elastomer parts gap dimension „s“
s

Support to the axis of rotation E

Notes
zz Feather keyways available from a bore ≥Ø6
zz Finish bore tolerance H7 (except for clamping hubs), from Ø55 G7 with clamping ring hubs
zz Finish bore tolerance H6 for ROTEX® GS P
zz Recommended insertion dimension of shafts into the coupling hubs: l1/l2; for clamping ring hubs l3
zz Spider available with bore on request

Use in explosive applications

ROTEX ® GS couplings are suitable for power transmission in drives in hazardous areas. The couplings are
certified and confirmed according to EC standard 94/9/EC (ATEX 95) as units of category 2G/2D and thus suitable for the use
in hazardous areas of zone 1, 2, 21 and 22. Please read through our information included in the respective Type Examination
Certificate and the operating and mounting instructions at www.ktr.com.
Selection: In case of use in hazardous areas the clamping ring hubs (clamping hubs without feather keyway only for use in category 3)
must be selected such that there is a minimum safety factor of s = 2 between the peak torque (including all operating parameters) and the
nominal torque and frictional torque of engagement of the coupling.

118 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® GS
Backlash-free jaw couplings

ROTEX® GS
Spiders
The elastic spiders of the GS line are available in five different kinds of Shore hardness, identified by colour, the material being soft to hard.
Due to these five spiders with different kinds of Shore hardness it is easily possible to adjust the ROTEX® GS with regard to torsional
stiffness and the vibration behaviour to the individual conditions of an application. The flexible prestress varies depending on the coupling
size, the spiders/material and the production tolerances. Resulting herefrom is the axial plug-in force starting from low as a close sliding fit
or with torsionally soft spider, respectively, to heavy with high prestress or torsionally rigid spider (see mounting instruction KTR-N 45510
at www.ktr.com).
Along with an increasing hardness of the spider the torques to be transmitted and the stiffness of the spider increase, too. Along with a
reduced hardness of the spider the ability of compensating for displacements and damping the spider is increased.

Properties
Perm. temperature range [°C] Available
Description of spider Identification
Material Permanent tem- Max. temperature for coupling Typical applications
hardness [Shore] Colour
perature short-term size

TOOLFLEX®
80 Sh-A-GS Polyurethane - 50 to + 80 - 60 to + 120 size 5 to 24 –– drives of electric measuring systems

–– drives of electric measuring and control systems

92 Sh-A-GS Polyurethane - 40 to + 90 - 50 to + 120 size 5 to 55
–– main spindle drives

–– positioning drives
98-Sh A-GS Polyurethane - 30 to + 90 - 40 to + 120 size 5 to 90 –– main spindle drives
–– high load

–– planetary gears / backlash-free gears

64 Sh-D-H-GS Hytrel - 50 to + 120 - 60 to + 150 size 7 to 38
–– higher torsion spring stiffness / high ambient temperatures

–– higher load
64 Sh-D-GS Polyurethane - 20 to + 110 - 30 to + 120 size 42 to 90
–– higher torsion spring stiffness

–– very high torsion spring stiffness / high ambient temperature

72 Sh-D-H-GS Hytrel - 50 to + 120 - 60 to + 150 size 24 to 38
–– very high load

–– very high torsion spring stiffness

72 Sh-D-GS Polyurethane - 20 to + 110 - 30 to + 120 size 42 to 90
–– very high load

RADEX®-NC
Degree of hardness

Increasing hardness

Spider material Polyurethane Hytrel

COUNTEX®

Degree of hardness 92 Shore-A 98 Shore-A 64 Shore-D 64 Shore-D

Relative Damping ψ [-] 0,80 0,80 0,75 0,60
Resonance factor VR [-] 7,90 7,90 8,50 10,5

For continuously updated data please refer to our online catalogue at www.ktr.com 119
ROTEX® GS
Backlash-free jaw couplings

Technical data
Static Dynamic Mass moment
Radial
Max. speed [rpm] for type Torque [Nm] torsion torsion Weight [kg] of inertia J
Shore GS

spring
Spider

Shore
range
Size spring spring [kgm2]
stiffness Cr
stiffness 1) stiffness 1)
2.0 / 2.1 2.8 1.0 6.0 [N/mm] Each Each
6.0 P 2) DKM TKN TK max [Nm/rad] [Nm/rad] Spider Spider
2.5 / 2.6 2.9 1.1 light 2) hub 5) hub 5)
70 A 0,2 0,3 1,78 5 43
80 A 0,3 0,6 3,15 10 82 0,2 0,015 0,002
5 38000 38000 47700 57300 0,001
92 A 0,5 1,0 5,16 16 154 x 10-3 x 10-6 x 10-6
98 A 0,9 1,7 8,3 25 296
80 A 0,7 1,4 8,6 26 114
92 A 1,2 2,4 14,3 43 219 0,5 0,085 0,01
7 27000 27000 34100 40900 0,003
98 A 2,0 4,0 22,9 69 421 x 10-3 x 10-6 x 10-6
64 D 2,4 4,8 34,3 103 630
80 A 0,7 1,4 8,8 27 117
3 0,117 0,01
8 98 A 23800 2,0 4,0 23,5 71 433 0,003
x 10-3 x 10-6 x 10-6
64 D 2,4 4,8 35,3 106 648
80 A 1,8 3,6 17,2 52 125
92 A 3,0 6,0 31,5 95 262 1,7 0,48 0,085
9 19000 19000 23800 28600 0,01
98 A 5,0 10,0 51,6 155 518 x 10-3 x 10-6 x 10-6
64 D 6,0 12,0 74,6 224 739
80 A 3,0 6,0 84,3 252 274
92 A 5,0 10,0 160,4 482 470 2,3 1,5 0,139
12 15200 15200 19100 22900 0,02
98 A 9,0 18,0 240,7 718 846 x 10-3 x 10-6 x 10-6
64 D 12,0 24,0 327,9 982 1198
80 A 3,6 7,2 111 330 359
1,3 1,1 0,155
13 98 A 12700 11,0 22,0 316 941 1109 0,01
x 10-3 x 10-6 x 10-6
64 D 14,5 29,0 430 1287 1570
80 A 4,0 8,0 60,2 180 153
92 A 7,5 15,0 114,6 344 336 4,7 2,8 0,509
14 12700 12700 15900 32000 47700 19100 0,02
98 A 12,5 25,0 171,9 513 654 x 10-3 x 10-6 x 10-6
64 D 16,0 32,0 234,2 702 856
80 A 5,0 10,0 157 471 400
2,3 2,8 0,434
16 98 A 12000 15,0 30,0 450 1341 1710 0,02
x 10-3 x 10-6 x 10-6
64 D 19,0 38,0 612 1835 2238
80 A 6,0 12,0 618 1065 582
92 A 12,0 24,0 1090 1815 1120 7 19,5 1,35
19 9550 9550 11900 24000 35800 14300 0,09
98 A 21,0 42,0 1512 2540 2010 x 10-3 x 10-6 x 10-6
64 D 26,0 52,0 2560 3810 2930
92 A 35 70 2280 4010 1480
98 A 60 120 3640 5980 2560 81,9 6,7
24 6950 10400 8650 17000 26000 10400 0,2 0,02
64 D 75 150 5030 10896 3696 x 10-6 x 10-6
72 3) D 97 194 9944 17095 5799
92 A 95 190 4080 6745 1780
98 A 160 320 6410 9920 3200 184,2 14,85
28 5850 8800 7350 15000 22000 8800 0,3 0,03
64 D 200 400 10260 20177 4348 x 10-6 x 10-6
72 3) D 260 520 21526 36547 7876
92 A 190 380 6525 11050 2350
98 A 325 650 11800 17160 4400 542,7 39,4
38 4750 7150 5950 12000 17900 7150 0,6 0,05
64 D 405 810 26300 40335 6474 x 10-6 x 10-6
72 3) D 525 1050 44584 71180 11425
92 A 265 530 10870 15680 2430
98 A 10000 450 900 21594 37692 5570 2802 85
42 4000 5000 15000 6000 2,4 0,08
64 D 8050 4) 560 1120 36860 69825 7270 x 10-6 x 10-6
72 3) D 728 1456 58600 93800 9766
92 A 310 620 12968 18400 2580
98 A 9100 525 1050 25759 45620 5930 4709 135
48 3600 4550 13600 5450 3,3 0,09
64 D 7200 4) 655 1310 57630 99750 8274 x 10-6 x 10-6
72 3) D 852 1704 80000 136948 11359
92 A 410 820 15482 21375 2980
98 A 685 1370 42117 61550 6686 9460 229
55 3150 3950 6350 4)
11900 4750 5,1 0,12
64 D 825 1650 105730 130200 9248 x 10-6 x 10-6
72 3) D 1072 2144 150000 209530 12762
98 A 940 1880 48520 71660 6418
15143 437
65 64 D 2800 3500 5650 4) 11000 1175 2350 118510 189189 8870 6,7 0,2
x 10-6 x 10-6
72 3) D 1527 3054 160000 310000 11826
98 A 1920 3840 79150 150450 8650
32750 1179
75 64 D 2350 2950 4750 4) 8950 2400 4800 182320 316377 11923 10,5 0,3
x 10-6 x 10-6
72 3)
D 3120 6240 360540 586429 16454
98 A 3600 7200 204500 302900 10700
87099 3362
90 64 D 1900 2380 3800 4) 7150 4500 9000 429450 908700 14700 18,2 0,6
x 10-6 x 10-6
72 3)
D 5850 11700 847440 1308852 20290
1)
Static and dynamic torsion spring stiffness with 0,5 x TKN
2)
Higher speeds on request
3)
With the use of the 72Sh-D spider we recommend to use hubs made of steel
4)
Clamping ring hubs 6.0 made of steel
5)
Hubs with an average bore type 1.0
The coupling has to be dimensioned in a way that the permissible coupling load is not exceeded with any operating condition. (see coupling selection on page 18 et seqq.).
The torques TKN/TKmax specified refer to the spider. The shaft-hub-connection has to be investigated by the customer.

120 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® GS
Backlash-free jaw couplings

ROTEX® GS
Notes for displacements
Axial displacement Radial displacement Angular displacement

ROTEX® GS
ROTEX® GS

∆Kr
www.ktr.com
ROTEX® GS

www.ktr.com
www.ktr.com

α
L ∆Ka

Due to its design the ROTEX® GS is able to absorb axial, angular and radial displacement, without causing any wear or premature failure
of the coupling. As the spider is only stressed under pressure it is ensured that the coupling will remain backlash-free even after a longer
operation period.

As an example, axial displacement may be produced by different tolerances of the connecting elements during the assembly or by alteration
of the shaft length if fluctuation of temperature occurs. As the shaft bearings usually cannot be axially stressed to a big extent, it is the task

TOOLFLEX®
of the coupling to compensate for this axial displacement and to keep the reaction forces low.

In case of pure angular displacement the imagined bisecting lines of the shafts intersect in the middle of the coupling. Up to a certain
permissible extent this displacement can be absorbed by the coupling without any danger of extensive restoring forces.

Radial displacement results from parallel displacement of the shafts towards each other, caused by different tolerances at the centerings
or by mounting of the power packs on different levels. Due to the kind of displacement the largest restoring forces are produced here,
consequently causing the highest stresses for the adjacent components.

In case of larger displacements (especially radial displacements) the ROTEX® GS DKM double-cardanic design should be applied in order
to avoid excessive restoring forces.

The above-mentioned permissible displacement figures of the flexible ROTEX® GS couplings are standard values, considering the coupling
load up to the rated torque TKN of the coupling and with an ambient temperature of + 30 °C. The ROTEX® GS couplings are in a position
to compensate for radial and angular displacements. Careful and accurate alignment of the shafts increases the service life of the coupling.

RADEX®-NC

Axial displacement Radial displacement Angular displacement

α
∆Kr

∆Ka
COUNTEX®

Shaft misalignment ROTEX® GS type DKM

This design reduces the restoring forces arising with radial displacement to a minimum, due to the double-jointed operation, additionally
the coupling is able to compensate for higher axial and angular misalignment.

For continuously updated data please refer to our online catalogue at www.ktr.com 121
ROTEX® GS
Backlash-free jaw couplings

Displacements
Displacements
Displacements standard Displacements DKM
Size Spider GS
[mm] ­axial ∆Ka 1)
[mm] ­radial ∆Kr [degree] angular α [mm] ­axial ∆Ka1)
[mm] ­radial ∆Kr [degree] angular α

70 Sh-A 0,14 1,2° 0,17 1,2°

80 Sh-A +0,4 0,12 1,1° +0,4 0,15 1,1°
5
92 Sh-A -0,2 0,06 1,0° -0,4 0,14 1,0°
98 Sh-A 0,04 0,9° 0,13 0,9°
80 Sh-A 0,15 1,1° 0,23 1,1°
92 Sh-A +0,6 0,10 1,0° +0,6 0,21 1,0°
7
98 Sh-A -0,3 0,06 0,9° -0,6 0,19 0,9°
64 Sh-D 0,04 0,8° 0,17 0,8°
80 Sh-A 0,15 1,1°
8 98 Sh-A ±1 0,08 0,9° — — —
64 Sh-D 0,06 0,8°
80 Sh-A 0,19 1,1° 0,29 1,1°
92 Sh-A +0,8 0,13 1,0° +0,8 0,26 1,0°
9
98 Sh-A -0,4 0,08 0,9° -0,8 0,24 0,9°
64 Sh-D 0,05 0,8° 0,21 0,8°
80 Sh-A 0,20 1,1° 0,35 1,1°
92 Sh-A +0,9 0,14 1,0° +0,9 0,32 1,0°
12
98 Sh-A -0,4 0,08 0,9° -0,9 0,29 0,9°
64 Sh-D 0,05 0,8° 0,25 0,8°
80 Sh-A 0,20 1,1°
13 98 Sh-A ±1 0,08 0,9° — — —
64 Sh-D 0,05 0,8°
80 Sh-A 0,21 1,1° 0,40 1,1°
92 Sh-A +1,0 0,15 1,0° +1,0 0,37 1,0°
14
98 Sh-A -0,5 0,09 0,9° -1,0 0,33 0,9°
64 Sh-D 0,06 0,8° 0,29 0,8°
80 Sh-A 0,21 1,1°
16 98 Sh-A ±1 0,10 0,9° — — —
64 Sh-D 0,08 0,8°
80 Sh-A 0,15 1,1° 0,49 1,1°
92 Sh-A +1,2 0,10 1,0° +1,2 0,45 1,0°
19
98 Sh-A -0,5 0,06 0,9° -1,0 0,41 0,9°
64 Sh-D 0,04 0,8° 0,36 0,8°
92 Sh-A 0,14 1,0° 0,59 1,0°
98 Sh-A +1,4 0,10 0,9° +1,4 0,53 0,9°
24
64 Sh-D -0,5 0,07 0,8° -1,0 0,47 0,8°
72 Sh-D 0,04 0,7° 0,42 0,7°
92 Sh-A 0,15 1,0° 0,66 1,0°
98 Sh-A +1,5 0,11 0,9° +1,5 0,60 0,9°
28
64 Sh-D -0,7 0,08 0,8° -1,4 0,53 0,8°
72 Sh-D 0,05 0,7° 0,46 0,7°
92 Sh-A 0,17 1,0° 0,77 1,0°
98 Sh-A +1,8 0,12 0,9° +1,8 0,69 0,9°
38
64 Sh-D -0,7 0,09 0,8° -1,4 0,61 0,8°
72 Sh-D 0,06 0,7° 0,54 0,7°
92 Sh-A 0,19 1,0° 0,84 1,0°
98 Sh-A +2,0 0,14 0,9° +2,0 0,75 0,9°
42
64 Sh-D -1,0 0,10 0,8° -2,0 0,67 0,8°
72 Sh-D 0,07 0,7° 0,59 0,7°
92 Sh-A 0,23 1,0° 0,91 1,0°
98 Sh-A +2,1 0,16 0,9° +2,1 0,82 0,9°
48
64 Sh-D -1,0 0,11 0,8° -2,0 0,73 0,8°
72 Sh-D 0,08 0,7° 0,64 0,7°
92 Sh-A 0,24 1,0° 1,01 1,0°
98 Sh-A +2,2 0,17 0,9° +2,2 0,91 0,9°
55
64 Sh-D -1,0 0,12 0,8° -2,0 0,81 0,8°
72 Sh-D 0,09 0,7° 0,71 0,7°
98 Sh-A 0,18 0,9°
+2,6
65 64 Sh-D 0,13 0,8° — — —
-1,0
72 Sh-D 0,10 0,7°
98 Sh-A 0,21 0,9°
+3,0
75 64 Sh-D 0,15 0,8° — — —
-1,5
72 Sh-D 0,11 0,7°
98 Sh-A 0,23 0,9°
+3,4
90 64 Sh-D 0,17 0,8° — — —
-1,5
72 Sh-D 0,13 0,7°
1)
The Ka figures mentioned above have to be added to the length of the respective coupling type.

122 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® GS
Backlash-free jaw couplings

ROTEX® GS
Displacements of intermediate shaft coupling
Displacements of intermediate shaft coupling Axial displacement
ROTEX® GS size with Axial ∆Ka Radial ∆Kr 1) Angular α
98 Sh-A-GS [mm] [mm] [degree]
+1,0
14 15 0,9°
-1,0
+1,2
19 14 0,9°
-1,0
+1,4
24 14 0,9°
-1,0
+1,5
28 14 0,9° Radial displacement
-1,4
+1,8
38 14 0,9°
-1,4
+2,0
42 14 0,9°
-2,0
+2,1
48 13 0,9°
-2,0
+2,2
55 13 0,9° ∆Kr = (LZR - 2  l1 - E) · tan α
-2,0
+2,6
65 13 0,9°
-2,0

TOOLFLEX®
1) Radial displacements based on a coupling length LZR = 1000 mm Angular displacement

Calculation of overall torsion spring stiffness: [degree]

1
1 Lpipe
Cges. = 2  C1 + C2 [Nm/rad]

with Lpipe = LZR - 2  L

1000 [m]

C1 = torsion spring stiffness for spider see

page 120
C2 = from table on page 140-143

Chart of critical bending speeds for type ZR3

RADEX®-NC
ROTEX® GS 19
ROTEX® GS 24
ROTEX® GS 28
ROTEX® GS 38
ROTEX® GS 42
ROTEX® GS 48

Example:
ROTEX® GS 19
Operating speed: 1500 min-1
Max. permissible shaft distance dimension::
1700 mm
Operating speed = nkrit/1,4
Operating speed [min-1]

COUNTEX®

Shaft distance dimension LR [mm]

For continuously updated data please refer to our online catalogue at www.ktr.com 123
ROTEX® GS
Backlash-free jaw couplings

Hub types
Due to the numerous applications of ROTEX® GS for many different mounting situations, this coupling system is available with various hub
types. The different hub types can be combined optionally within one size.

Type 1.0 Type 1.1 without keyway, with setscrew

with feather keyway and setscrew
Positive locking power transmission, permissible torque Non-positive torque transmission, suitable for backlash-free
depending on the permissible surface pressure. Not suitable transmission of very small torques. (For ATEX category 3
for backlash-free power transmission with heavily reversing only)
operation.

Type 2.0 clamping hub, single slotted, without feather Type 2.1 clamping hub, single slotted, with feather
keyway keyway
Frictionally engaged, backlash-free shaft-hub-connection-. Positive locking power transmission with additional friction-
Transmittable torques depending on bore diameter Type 2.0 ally engaged condition. The frictionally engaged condition
up to size 14 as standard. (For ATEX category 3 only) prevents or reduces reverse backlash, respectively. Surface
pressure of the keyway connection is reduced. Type 2.1 up
to size 14 as standard.

Type 2.5 Clamping hub double slot, without feather Type 2.6 Clamping hub double slot, with feather keyway
keyway
Frictionally engaged, backlash-free shaft-hub-connection-. Positive locking power transmission with additional friction-
Transmittable torques depending on bore diameter Type 2.5 ally engaged condition. The frictionally engaged condition
from size 19 as standard. (For ATEX category 3 only) prevents or reduces reverse backlash, respectively. Surface
pressure of the keyway connection is reduced. Type 2.5
from size 19 as standard.

Type 2.8 short clamping hub C with axial slots without Type 2.9 short clamping hub C with axial slots with
feather keyway feather keyway
Frictionally engaged, backlash-free shaft-hub-connection, Positive locking power transmission with additional friction-
good properties of concentric running. Transmittable ally engaged condition. Surface pressure of the keyway
torques depending on bore diameter Type 2.8 from size 24 connection is reduced. Type 2.9 from size 24 as standard,
as standard. Size 7-19 type 2.8 single slotted (for ATEX size 7-19 type. 2.9 single slotted.
cat. 3 only)

Type 6.0 Clamping ring hub Type 6.0 P Precision clamping ring hub

Integrated frictionally engaged shaft-hub-connection for the Operating principle equal to type 6.0, but highly accurate
transmission of higher torques. Screwing on elastomer side. machining with slight modifications of design, see page 132.
For details about torque and dimensions see page 156/157.
Suitable for high speeds.

Type Design 7.5 clamping hub type DH without feather Type 7.6 clamping hub type DH with feather keyway for
keyway for double-cardanic connections double-cardanic connections
Frictionally engaged, backlash-free shaft-hub-connection for Positive shaft-hub connection with additional frictional
radial assembly of coupling. Transmittable torques depend- engagement for the radial assembly of the coupling. The fric-
ing on bore diameter For torques see page 140. tional engagement avoids or reduces the reverse backlash.
Surface pressure of the keyway connection is reduced.

Type 7.8 clamping hub type H without feather keyway, Type 7.9 clamping hub type H with feather keyway for
single-cardanic connection singe-cardanic connection

Type 4.2 with CLAMPEX® KTR 250 Type 9.0 expansion hub

Frictionally engaged shaft-hub-connection to transmit high Frictionally engaged connection for hollow shaft. Transmit-
torques with clamping screws externally table torques depend on the bore diameter and the hollow
shaft.

Special designs on request of customers

Type 6.5 Clamping ring hub

Design equal to 6.0, but clamping screws on the outside.

As an example for radial disassembly of intermediate pipe
(special design).

124 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® GS
Backlash-free jaw couplings

ROTEX® GS
Stock programme
Finish bore [mm] according to ISO fit H7 / feather keyway with thread according to DIN 6885 sheet 1 - JS9
Un-/pilot Ø
Size Hub type
bored Ø2 Ø3 Ø4 Ø5 Ø6 6,35 Ø7 Ø8 Ø9 Ø9,5 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45
1.1    
7 2.0       
2.8 
8 2.8    
1.0     
1.1       
9 2.0            
2.1     
2.8 
1.0  
1.1 
12 2.0          
2.1   
2.8 
13 2.8     
1.0          
1.1       

TOOLFLEX®
2.0               
14 2.1         
2.8     
6.0 light       
6.0 P 
16 2.8     
1.0            
2.5               
2.6            
2.8           
19
6.0 light         
6.0 steel   
6.0 P37.5 
6.0 P 
1.0            
2.5             
2.6           
2.8         
24
6.0 light           
6.0 steel    
6.0 P 50 
6.0 P 
1.0          

RADEX®-NC
2.5             
2.6           
28 2.8       
6.0 light           
6.0 steel        
6.0 P    
1.0          
2.5       
2.6         
2.8      
38
6.0 light            
6.0 steel        
6.0 P   
Taper bores for Fanuc motors:
GS 19 1:10 Ø 11
GS 24 1:10 Ø 16

Finish bores [mm]

Size Hub type
Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø80
6.0 light       
42
6.0 steel          
COUNTEX®

6.0 light     
48
6.0 steel         
55 6.0 steel        
65 6.0 steel        
75 6.0 steel      
90 6.0 steel Bores on request

 = Pilot bored clamping hubs

 = Standard bore from stock
Unbored hubs up to size 65 available from stock.
Other dimensions on request

For continuously updated data please refer to our online catalogue at www.ktr.com 125
ROTEX® GS
Backlash-free jaw couplings

Standard types

For legend of pictogram please refer to flapper on the cover

90

ROTEX® GS 5 - 38 ROTEX® GS 42 - 90

Hub types:
Type 1.0 Type 1.1 Type 1.2

with keyway without keyway and with without keyway and

and set screw set screw without set screw

ROTEX® GS standard types For size 5 to 38 hub material aluminium/for size 42 to 90 hub material steel
Spider torque TKN Maximum finish bore Ød Setscrew DIN EN ISO 4029 hub type
Dimensions [mm]
Size [Nm] for for hub type 1.0/1.1
98Sh-A1) 1.0 1.1 1.2 D DH dH L l1;l2 M;N E b s a G t TA
5 0,9 - 6 5 − 10 — 15 5 − 5 4 0,5 4,0 M2 2,5 0,2
7 2,0 7 7 7 − 14 — 22 7 − 8 6 1,0 6,0 M3 3,5 0,3
9 5,0 10 11 11 − 20 7,2 30 10 − 10 8 1,0 1,5 M4 5,0 1,5
12 9,0 12 12 12 − 25 8,5 34 11 − 12 10 1,0 3,5 M4 5,0 1,5
14 12,5 16 16 16 − 30 10,5 35 11 − 13 10 1,5 2,0 M4 5,0 1,5
19 21 24 - – – 40 18 66 25 – 16 12 2,0 3,0 M5 10 2,0
24 60 28 – – – 55 27 78 30 – 18 14 2,0 3,0 M5 10 2,0
28 160 38 – – – 65 30 90 35 – 20 15 2,5 4,0 M8 15 10
38 325 45 – – – 80 38 114 45 – 24 18 3,0 4,0 M8 15 10
42 450 55 – – 85 95 46 126 50 28 26 20 3,0 4,0 M8 20 10
48 525 62 – - 95 105 51 140 56 32 28 21 3,5 4,0 M8 20 10
55 685 74 – – 110 120 60 160 65 37 30 22 4,0 4,5 M10 20 17
65 940 80 – – 115 135 68 185 75 47 35 26 4,5 4,5 M10 20 17
75 1920 95 – – 135 160 80 210 85 53 40 30 5,0 5,0 M10 25 17
90 3600 110 – – 160 200 104 245 100 62 45 34 5,5 6,5 M12 30 40
1)
Other spiders/selection see page 142/143

ROTEX® GS 24 98 Sh-A-GS d20 2.5 – Ø 24 1.0 – Ø 20

Ordering
example: Optional: Bore
Coupling size Spider hardness Hub type Finish bore Hub type Finish bore
in spider

126 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
Hub types:
Type 2.0 Type 2.5
Type 2.1 Type 2.6

size 5 to 14 from size 19

Type 2.0: Single slotted clamping hub without feather keyway Type 2.5: double slotted clamping hub without feather keyway
(only for ATEX cat. 3), torque depending on bore Ø. (only for ATEX cat. 3), torque depending on bore Ø.
Type 2.1: single slotted clamping hub with feather keyway Type 2.6: double slotted clamping hub with feather keyway

ROTEX® GS standard types For size 5 to 38 hub material aluminium/for size 42 to 90 hub material steel

TOOLFLEX®
Maximum finish bore Ød Clamping screw DIN EN ISO 4762 (ROTEX® 5
Spider torque TKN Dimensions [mm]
Size for hub type DIN 84) hub type 2.0/2.1/2.5/2.6
[Nm] for 98Sh-A1)
2.0 2.1 2.5 2.6 D DH dH L l1;l2 M;N E b s a M1 t1 e DK TA[Nm]
5 0,9 5 5 − − − 10 — 15 5 − 5 4 0,5 4,0 M1,2 2,5 3,5 11,4 —2)
7 2,0 7 7 − − − 14 — 22 7 − 8 6 1,0 6,0 M2 3,5 5,0 16,5 0,37
9 5,0 11 11 − − − 20 7,2 30 10 − 10 8 1,0 1,5 M2,5 5,0 7,5 23,4 0,76
12 9,0 12 12 − − − 25 8,5 34 11 − 12 10 1,0 3,5 M3 5,0 9,0 27,5 1,34
14 12,5 16 16 − − − 30 10,5 35 11 − 13 10 1,5 2,0 M3 5,0 11,5 32,2 1,34
19 21 − − 24 24 – 40 18 66 25 – 16 12 2,0 3,0 M6 11,0 14,5 46 10,5
24 60 − − 28 28 – 55 27 78 30 – 18 14 2,0 3,0 M6 10,5 20,0 57,5 10,5
28 160 − − 38 38 – 65 30 90 35 – 20 15 2,5 4,0 M8 11,5 25,0 73 25
38 325 − − 45 45 – 80 38 114 45 – 24 18 3,0 4,0 M8 15,5 30,0 83,5 25
42 450 − − 50 45 85 95 46 126 50 28 26 20 3,0 4,0 M10 18 32,0 93,5 69
48 525 − − 55 55 95 105 51 140 56 32 28 21 3,5 4,0 M12 21 36,0 105 120
55 685 − − 68 68 3) 110 120 60 160 65 37 30 22 4,0 4,5 M12 26 42,5 119,5 120
65 940 − − 70 70 3) 115 135 68 185 75 47 35 26 4,5 4,5 M12 33 45,0 124 120
75 1920 − − 80 80 135 160 80 210 85 53 40 30 5,0 5,0 M16 36 51,0 147,5 295
90 3600 − − 90 90 160 200 104 245 100 62 45 34 5,5 6,5 M20 40 60,0 192 580
1)
Other spiders/selection see page 18 et seqq.
2)
No TA defined (slotted screw)
3)
From Ø60 keyway opposite to the clamping screw
4)
Clamping hub single slotted with 2-off clamping screws M4 and dimension e=15

RADEX®-NC
Review of shaft-hub-connection: Friction torques for hub type 2.0
Size Ø2 Ø3 Ø4 Ø5 Ø6 Ø7 Ø8 Ø9 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16
7 0,8 0,9 0,95 1,0 1,1
9 2,1 2,2 2,3 2,4 2,5 2,6 2,7 2,8
12 3,6 3,8 4,0 4,1 4,3 4,5 4,7 4,8 5,0
14 4,7 4,8 5,0 5,1 5,3 5,5 5,6 5,8 6,1 6,3 6,5

Review of shaft-hub-connection: Friction torques for hub type 2.5

Size Ø8 Ø10 Ø11 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø75 Ø80 Ø90
19 25 27 27 29 30 31 32 32 34 30 4) 32 4)
24 34 35 36 38 38 39 40 41 42 43 45 46
28 80 81 81 84 85 87 89 91 92 97 99 102 105 109
38 92 94 97 98 99 102 104 105 109 112 113 118 122 123 126 130
42 232 238 244 246 255 260 266 274 283 288 294 301 309 315
48 393 405 413 421 434 445 454 462 473 486 494 514
55 473 486 498 507 514 526 539 547 567 587 608
COUNTEX®

65 507 518 526 535 547 559 567 587 608 627 648
75 1102 1124 1148 1163 1201 1239 1278 1316 1354 1393
90 1944 1980 2016 2040 2100 2160 2220 2280 2340 2400 2520

For continuously updated data please refer to our online catalogue at www.ktr.com 127
ROTEX® GS Compact
Backlash-free jaw couplings

Compact design

For legend of pictogram please refer to flapper on the cover

90

ROTEX® GS Compact
Spider torque TKN [Nm] 1) Dimensions [mm]
Size TA [Nm]
80Sh-A 92Sh-A 98Sh-A 64Sh-D maximum d DH DK L l1, l2 E b s dH t e M
Single slotted hub design 2.8/2.9
7 0,7 1,2 2,0 2,4 7 14 16,6 18 5 8 6 1 – 2,5 5 M2 0,37
8 0,5 – 2,0 2 8 16 17,1 20 7 6 5 0,5 6,2 4 5,5 M2 0,52
9 1,8 3,0 5,0 6 9 20 21,3 24 7 10 8 1 – 3,5 6,7 M2,5 0,76
12 3,0 5,0 9,0 12 12 25 26,2 26 7 12 10 1 – 3,5 8,3 M3 1,34
13 3,6 – 11 14,5 12,7 25 25,7 26 8 10 8 1 10 4 8 M3 1,9
14 4,0 7,5 12,5 16 162) 30 30,5 32 9,5 13 10 1,5 – 4,5 9,6 M4 2,9
16 5,0 – 15 19 16 30 32,5 32 10,3 11,4 9,4 1 14 5,3 10,5 M4 4,1
19 6,0 12,0 21,0 26,0 242) 40 45,0 50 17 16 12 2 – 9 14,0 M6 10
Axially slotted hub design 2.8/2.9
24 – 35 60 75 32 55 57,5 54 18 18 14 2 – 11 20,0 M6 10
28 – 95 160 200 35 65 69,0 62 21 20 15 2,5 – 12 23,8 M8 25
38 – 190 325 405 45 80 86,0 76 26 24 18 3 – 16 30,5 M10 49

Review of shaft-hub-connection: Friction torques for hub type 2.8

Size Ø3 Ø4 Ø5 Ø6 Ø7 Ø8 Ø9 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45
Single slotted hub design 2.8
7 0,8 0,9 1,0 1,0 1,1
8 0,65 0,85 1,1 1,3 1,5 1,7
9 1,9 2,0 2,1 2,2 2,3 2,4
12 3,4 3,6 3,7 3,9 4,1 4,2 4,4 4,6 4,7
13 2,2 2,75 3,3 3,8 4,4 4,9 5,5 6 6,6
14 7,1 7,4 7,7 8,0 8,2 8,5 8,8 9,1 5,82) 5,92) 6,12)
16 4,8 5,8 6,4 7,7 8,7 9,6 11,6 11,5 13,5 14,5 15,4
19 24,3 25,0 25,7 26,3 27,0 28,4 29,0 29,7 31,1 31,7 32,4 25,02)
Axially slotted hub design 2.8
24 21 23 25 30 32 34 38 40 42 51 53 59 63 68
28 54 58 62 70 74 78 93 97 109 116 124 136
38 92 99 111 117 123 148 154 173 185 197 216 234 247 259 278
1)
Other spiders/selection see page 18 et seqq.
2)
Size 14 with screw M3 and dimension e=10.4, size 19 with screw M5 and dimension e=15.5
2.8 = Without feather keyway
2.9 = With feather keyway

ROTEX® GS 38 Compact 98 Sh-A-GS d28 2.8 - Ø28 2.8 - Ø45

Ordering
example: Optional
Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore
Bore in spider

128 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
ROTEX® GS 8, 13, 16
Compact
Single slotted type 2.8

TOOLFLEX®
ROTEX® GS 7, 9, 12, 14, 19
Compact
Single slotted type 2.8

ROTEX® GS 24 - 38 Compact ­
Axially slotted type 2.8

RADEX®-NC

Hub types
Type 2.8 Type 2.9
COUNTEX®

Short clamping hub C with axial slots without feather keyway Short clamping hub C with axial slots with feather keyway
Type 2.8 from size 24 standard, size 7-19 type 2.8 single slotted Type 2.9 from size 24 standard, size 7-19 type 2.9 single slotted

For continuously updated data please refer to our online catalogue at www.ktr.com 129
ROTEX® GS Clamping ring hubs light
Backlash-free jaw couplings

Integrated clamping system made of aluminium

For legend of pictogram please refer to flapper on the cover

90

Tack thread M1 between

clamping screws

ROTEX® GS clamping ring hubs light

Clamping screws Weight per
Spider torque TKN [Nm] 1)
Dimensions [mm] Mass moment of
­DIN EN ISO 4762 hub with
Size inertia per hub with
Num- max.
92 Sh-A 98Sh-A 64 Sh-D maxi.d DH2) dH L l1; l2 l3 E b s a M TA[Nm] M1 max. bore [kg m2]
ber z bore [kg]
14 7,5 12,5 16,0 14 30 10,5 50 18,5 13,5 13 10 1,5 2,0 M3 4 1,34 M3 0,032 0,04 x 10-4
19 12 21 26 20 40 18 66 25 18 16 12 2,0 3,0 M4 6 3 M4 0,077 0,19 x 10-4
24 35 60 75 32 55 27 78 30 22 18 14 2,0 3,0 M5 4 6 M5 0,162 0,78 x 10-4
28 95 160 200 38 65 30 90 35 27 20 15 2,5 4,0 M5 8 6 M5 0,240 1,70 x 10-4
38 190 325 405 48 80 38 114 45 35 24 18 3,0 4,0 M6 8 10 M6 0,490 5,17 x 10-4
42 265 450 560 51 95 46 126 50 35 26 20 3,0 4,0 M8 4 25 M8 0,772 11,17 x 10-4
48 310 525 655 55 105 51 140 56 41 28 21 3,5 4,0 M10 4 49 M10 1,066 18,81 x 10-4
1)
Other spiders/selection see page 18 et seqq.
2)
ØDH + 2 mm with high speeds for expansion of spider

Review of shaft-hub-connection: Friction torques for hub type 6.0 light

Size Ø6 Ø10 Ø11 Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55*
H7/k6 6,9 17 22 31
14
H7/h6 4,7 14 19 22
H7/k6 28 35 51 61 43 68 78
19
H7/h6 23 30 44 55 32 58 70
H7/k6 72 85 79 119 134 145 160 211
24
H7/h6 64 79 67 106 124 108 123 172
H7/k6 120 177 161 247 271 305 355 294 366 382
28
H7/h6 102 160 132 224 250 281 336 222 294 311
H7/k6 248 376 411 486 563 553 673 665 748 832 732 848
38
H7/h6 210 344 382 453 536 454 577 550 632 718 614 732
H7/k6 559 645 666 806 859 957 924 1069 1221 1229
42
H7/h6 522 616 558 703 800 909 806 960 1125 1173
H7/k6 706 795 962 1047 1165 1160 1339 1527 1393 1652
48
H7/h6 650 735 914 983 1110 1025 1216 1422 1207 —
* From Ø55 tolerance G7/m6
With bigger clearance the torque is reduced. As shaft material steel or nodular iron with a yield point of approx. 250 N/mm2 or more can be used. For the stiffness calculation of the shaft/hollow
shaft see KTR standard 45510 at our homepage www.ktr.com.

ROTEX® GS 24 98 Sh-A-GS d20 6.0 light – Ø 24 6.0 light – Ø 20

Ordering
example: Spider Optional: Bore
Coupling size Hub type Finish bore Hub type Finish bore
hardness in spider

130 For continuously updated data please refer to our online catalogue at www.ktr.com
ROTEX® GS Clamping ring hubs made of steel
Backlash-free jaw couplings

ROTEX® GS
Integrated clamping system made of steel

For legend of pictogram please refer to flapper on the cover

90

TOOLFLEX®
Tack thread M1 between
clamping screws

ROTEX® GS clamping ring hubs made of steel

Clamping screws
Spider torque TKN [Nm] 1)
Dimensions [mm] Weight per Mass moment
­DIN EN ISO 4762
Size hub with max. per hub with max.
Num-
98 Sh-A 64 Sh-D 72 Sh-D maxi.d DH 2)
dH L l1; l2 l3 E b s a M TA[Nm] M1 bore [kg] bore [kg m2]
ber z
19 21 26 − 20 40 18 66 25 18 16 12 2,0 3,0 M4 6 4,1 M4 0,179 0,44 x 10-4
24 60 75 97 28 55 27 78 30 22 18 14 2,0 3,0 M5 4 8,5 M5 0,399 1,91 x 10-4
28 160 200 260 38 65 30 90 35 27 20 15 2,5 4,0 M5 8 8,5 M5 0,592 4,18 x 10-4
38 325 405 525 48 80 38 114 45 35 24 18 3,0 4,0 M6 8 14 M6 1,225 12,9 x 10-4

RADEX®-NC
42 450 560 728 51 95 46 126 50 35 26 20 3,0 4,0 M8 4 35 M8 2,30 31,7 x 10-4
48 525 655 852 55 105 51 140 56 41 28 21 3,5 4,0 M10 4 69 M10 3,08 52,0 x 10-4
55 685 825 1072 70 120 60 160 65 45 30 22 4,0 4,5 M10 4 69 M10 4,67 103,0 x 10-4
65 940 1175 1527 70 135 68 185 75 55 35 26 4,5 4,5 M12 4 120 M12 6,70 191,0 x 10-4
75 1920 2400 − 80 160 80 210 85 63 40 30 5,0 5,0 M12 5 120 M12 9,90 396,8 x 10-4
90 3600 4500 − 105 200 104 245 100 75 45 34 5,5 6,5 M16 5 295 M16 17,7 1136 x 10-4
1)
Other spiders/selection see page 18 et seqq.
2)
ØDH + 2 mm with high speeds for expansion of spider
Review of shaft-hub-connection: Friction torques for hub type 6.0 steel
Size Ø10 Ø11 Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55* Ø60* Ø65* Ø70* Ø80* Ø90* Ø95* Ø100* Ø105*
H7/k6 27 32 69 84 57 94 110
19
H7/h6 15 18 57 74 38 76 94
H7/k6 70 87 56 97 114 116 133 192
24
H7/h6 55 74 32 72 93 84 103 173
H7/k6 108 131 207 148 253 285 315 382 330 433 503
28
H7/h6 74 97 172 94 207 242 267 343 260 377 453
H7/k6 208 353 395 439 531 463 603 593 689 793 776
38
H7/h6 136 290 337 373 476 367 525 491 601 721 677
H7/k6 358 398 483 416 547 536 625 571 704 851 865
42
H7/h6 299 331 428 320 470 434 537 452 605 778 781
H7/k6 616 704 899 896 1030 962 1160 1379 1222 1543
48
H7/h6 513 590 806 775 924 822 1042 1290 1073 —
H7/k6 863 856 991 918 1119 1110 1247 1277 1665 1605 2008
55
H7/h6 750 710 863 750 976 934 1089 — — — —
H7/k6 1446 1355 1637 1635 1827 1887 2429 2368 2930
COUNTEX®

65
H7/h6 1275 1135 1447 1404 1619 — — — —
H7/k6 1710 2053 2059 2294 2384 3040 2983 3664 4293
75
H7/h6 1460 1836 1797 2056 — — — — —
H7/k6 3845 4249 4794 5858 5900 7036 8047 9247 9575 10845
90
H7/h6 3445 — — — — — — — — —
* From Ø55 tolerance G7/m6
With bigger clearance the torque is reduced. For the stiffness calculation of the shaft/hollow shaft see KTR standard 45510 at our homepage at www.ktr.com.

ROTEX® GS 24 98 Sh-A-GS d20 6.0 steel Ø24 6.0 steel Ø20

Ordering
example: Optional: Bore
Coupling size Spider hardness Hub type Finish bore Hub type Finish bore
in spider

For continuously updated data please refer to our online catalogue at www.ktr.com 131
ROTEX® GS P
Backlash-free jaw couplings

Highly accurate type P according to DIN 69002

For legend of pictogram please refer to flapper on the cover

90

ROTEX® GS type P material of hub/clamping ring steel

Tightening Mass moment of
Spider torque TKN [Nm] 1) Dimensions [mm] Weight per hub
torque of clamp- inertia with bore
Size with bore Ød
ing screws Ø d standard
standard [kg]
98 Sh-A 64 Sh-D maximum d DH2) dH L l1;l2 l E b s a d3 TA [Nm] [kgm2]

14 P 12,5 16 15 32 10,5 50 18,5 15,5 13 10 1,5 2 — 1,89 0,08 0,011 x 10-3

19 P 21 26 20 40 18 66 25 21 16 12 2 3 — 3,05 0,19 0,046 x 10-3
24 P 60 75 28 55 27 78 30 25 18 14 2 3 — 8,5 0,44 0,201 x 10-3
28 P 160 200 38 65 30 90 35 30 20 15 2,5 4 — 8,5 0,64 0,438 x 10-3
38 P 325 405 48 80 38 114 45 40 24 18 3 4 — 14 1,32 1,325 x 10-3
42 P 450 560 51 95 46 126 50 45 26 20 3 4 18,5 35 2,23 3,003 x 10-3
48 P 525 655 55 105 51 140 56 50 28 21 3,5 4 20,5 69 3,09 5,043 x 10-3
55 P 685 825 70 120 60 160 65 58 30 22 4 4,5 22,5 69 4,74 10,02 x 10-3
65 P 940 1175 70 135 68 185 75 55 35 26 4,5 4,5 30 120 6,70 191,0 x 10-4
75 P 1920 2400 80 160 80 210 85 63 40 30 5,0 5,0 40 120 9,90 396,8 x 10-4
90 P 3600 4500 105 200 104 245 100 75 45 34 5,5 6,5 50 120 17,7 1136 x 10-4
1)
Other spiders/selection see page 18 et seqq.
2)
Ø DH + 2 mm with high speeds for expansion of spider
For the stiffness calculation of the shaft/hollow shaft see KTR standard 45510 on our homepage www.ktr.com

Review of shaft-hub-connection: Friction torques for hub type 6.0P steel

Size Ø10 Ø11 Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55* Ø60* Ø65* Ø70* Ø80* Ø90* Ø95* Ø100* Ø105*
14 H6/k6 11 13 29
19 H6/k6 34 41 75 90 68 104 119
24 H6/k6 79 95 70 110 126 134 149 201
28 H6/k6 128 150 225 177 278 307 341 403 366 461 528
38 H6/k6 247 386 426 475 560 511 641 644 733 828 825
42 H6/k6 389 433 512 464 585 586 669 631 753 888 906
48 H6/k6 672 762 945 957 1082 1033 1219 1423 1296 1606
55 H6/k6 920 929 1055 1002 1190 1198 1325 1388 1743 1722 2088
65 H6/k6 1532 1465 1731 1750 1931 2034 2534 2521 3038
75 H6/k6 1835 2161 2190 2413 2551 3161 3158 3789 4421
90 H6/k6 4046 4503 5057 6079 6181 7324 8398 9530 9892 11084
*From Ø55 G6/m6.
With bigger clearance the torque is reduced. For the stiffness calculation of the shaft/hollow shaft see KTR standard 45510 at our homepage at www.ktr.com.

Selection for stub spindles according to DIN 69002

Dimensions to DIN 69002
ROTEX® GS P Transmittable Weight per hub Mass moment of
Spindle drive Standard spindle
size d1 d2 d3 DH l1; l2 L E torque TR with Ød with bore Ød inertia with bore Ø
shaft diameter d
[Nm] 3) standard [kg] 3) d standard [kgm2] 3)
25 x 20 14 P 14 17 17 8,5 32 18,5 50 13 25 0,08 0,011 x 10-3
32k x 25 19 P37.5 16 20 19 9,5 37,5 25 66 16 60 0,16 0,037 x 10-3
32g x 30 19 P 19 23 22 9,5 40 25 66 16 71 0,19 0,046 x 10-3
40 x 35 24 P50 24 28 29 12,5 50 30 78 18 108 0,331 0,136 x 10-3
50 x 45 24 P 25 30 30 12,5 55 30 78 18 170 0,44 0,201 x 10-3
63 x 55 28 P 35 40 40 14,5 65 35 90 20 506 0,64 0,438 x 10-3
80 x 75 38 P 40 46 46 16,5 80 45 114 24 821 1,32 1,325 x 10-3
3)
Standard spindle shaft diameters

ROTEX® GS 24 P 98 Sh-A-GS 6.0 - Ø25 6.0 - Ø25

Ordering
example: Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore

132 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
Components

TOOLFLEX®
Tack thread M1 between
clamping screws

RADEX®-NC
ROTEX® GS type P with central coolant supply for stub spindles and multiple spindle heads

Driving side
Tool side
(gearbox or motor)

Spindle bearing
COUNTEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 133
ROTEX® GS expansion hubs
Backlash-free jaw couplings

Clamping system for hollow shaft connection

For legend of pictogram please refer to flapper on the cover

90

ROTEX® GS expansion hub Material of expansion hub aluminium/material of clamp pin stainless steel
Spider torque TKN [Nm] 2) Dimensions [mm]
Size
80 Sh-A 92 Sh-A 98 Sh-A 64 Sh-D 72 Sh-D D1 3) D2 DH l1 3) l4 3) l5 3) l6 E b s
9 1,8 3,0 5,0 6,0 – 10 – 20 20 11 – 0 10 8 1,0
12 3,0 5,0 9,0 12,0 – 10 20 25 19 14 1,5 2 12 10 1,0
14 4,0 7,5 12,5 16,0 – 12 24 30 18,5 12,5 3 2 13 10 1,5
19 6,0 12,0 21,0 26,0 – 20 35 40 28 20 1 0 16 12 2,0
24 – 35 60 75 97 25 45 55 38 30 1 4 18 14 2,0
28 – 95 160 200 260 35 55 65 44 36 1 5 20 15 2,5
1)
Expansion hub can be combined with other hub designs as a counter side, too. l2 depending on hub design. Other hub types see page 124
2)
For selection see page 18 et seqq.
3)
The dimensions D1; l1, l4 and l5 are examples. Other dimensions on customers' request.

Review of shaft-hub-connection: Friction torques for hub type 9.0*

Size D1 D2 l1 l4 3 l5 Friction torque [Nm]
9 10 – 20 11 – 6,4
12 10 20 19 14 1,5 7,7
14 12 24 18,5 12,5 3 7,7
19 20 35 28 20 1 35,7
24 25 45 38 30 1 82
28 35 55 44 36 1 182
* The transmittable torques of the clamping connection consider the dimensions D1, D2, l4 and l5 as specified with steel being the material of the hollow shaft.

ROTEX® GS 24 98 Sh-A-GS d20 9.0 – Ø 24 2.5 – Ø 20

Ordering
example: Spider Optional: Bore
Coupling size Hub type D1 Hub type Finish bore
hardness in spider

134 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
ROTEX® GS expansion hub type 9.0 with
clamping hub 1)

TOOLFLEX®
ROTEX® GS expansion hub for axis of belt

RADEX®-NC
COUNTEX®

Special types for hollow shaft connections

Shaft ROTEX® GS hub
extension with CLAMPEX®
KTR 150

For continuously updated data please refer to our online catalogue at www.ktr.com 135
ROTEX® GS A-H
Backlash-free jaw couplings

Drop-out center design coupling

For legend of pictogram please refer to flapper on the cover

90

ROTEX® GS Type A-H hub material aluminium

Max. finish bore Dimensions [mm] Cyl. screws DIN EN ISO 4762
Size
Ød [mm] L l1; l2 E b s DH DK x1/x2 E1 Mxl TA [Nm]
19 20 66 25 16 12 2,0 40 46 17,5 31 M6x16 10
24 28 78 30 18 14 2,0 55 57,5 22,0 34 M6x20 10
28 38 90 35 20 15 2,5 65 73 25,0 40 M8x25 25
38 45 114 45 24 18 3,0 80 83,5 33,0 48 M8x30 25
42 50 126 50 26 20 3,0 95 93,5 39 48 M10x30 49

Technical data
Torque [Nm] Static torsion
Spider Max. speed Mass moment of inertia J of each
Size Shore range spring stiffness 2) Weight per hub with max. bore [kg]
Shore-GS 1) [rpm] hub with max. bore diameter [kgm2]
TKN TKmax [Nm/rad]
80 A 6,0 12,0 618
92 A 12,0 24,0 1090
19 9550 77 x 10-3 19,6 x 10-6
98 A 21,0 42,0 1512
64 D 26,0 52,0 2560
92 A 35 70 2280
24 98 A 6950 60 120 3640 161 x 10-3 77,3 x 10-6
64 D 75 150 5030
92 A 95 190 4080
28 98 A 5850 160 320 6410 240 x 10-3 173 x 10-6
64 D 200 400 10260
92 A 190 380 6525
38 98 A 4750 325 650 11800 470 x 10-3 496 x 10-6
64 D 405 810 26300
92 A 265 530 10870
42 98 A 4000 450 900 21594 1770 x 10-3 2409 x 10-6
64 D 560 1120 36860
Other spiders/selection see page 18 et seqq.
1)

Static torsion spring stiffness with 0.5 x TKN

2)

To make sure that the coupling can be assembled/disassembled radially, please observe the insertion dimension x1/x2 of the shafts.

Review of shaft-hub-connection: Friction torques for hub type 7.8

Size Ø8 Ø10 Ø11 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø46 Ø48 Ø50
19 17 21 23 30 32 34 38 40 42
24 21 23 30 32 34 38 40 42 47 51 53 59
28 54 58 62 70 74 78 86 93 97 109 117 124 136 148
38 70 74 78 86 93 97 109 117 124 136 148 156 163 175
42 136 149 155 174 186 198 217 235 248 260 279 285 297 310

ROTEX® GS 38 A-H 98 Sh-A-GS 7.8 – Ø 38 7.9 – Ø 30

Ordering
example: Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore

136 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
Type A-H

TOOLFLEX®
Please note:
The feather keys are offset to each other by approx. 5°!
Hub material: Al-H

RADEX®-NC

Hub types
Type 7.8 Type 7.9
COUNTEX®

Clamping hub type H without feather keyway for single- Clamping hub type H with feather keyway for singe-cardanic
cardanic connection connection

For continuously updated data please refer to our online catalogue at www.ktr.com 137
ROTEX® GS DKM
Backlash-free jaw couplings

Double-cardanic jaw coupling

For legend of pictogram please refer to flapper on the cover

90

ROTEX® GS DKM Spacer material aluminium/hub material depends on hub design

Spider torque TKN
Dimensions [mm]
Size [Nm] 1)
98 Sh-A 64 Sh-D max. d 2) D DH dH dH1 l1; l2 M; N l11 l12 LDKM E b s a
5 0,9 — 5 — 10 — — 5 — 3 13 23 5 4 0,5 4,0
7 2,0 2,4 7 — 14 — — 7 — 4 20 34 8 6 1,0 6,0
9 5,0 6,0 11 — 20 7,2 — 10 — 5 25 45 10 8 1,0 1,5
12 9,0 12,0 12 — 25 8,5 — 11 — 6 30 52 12 10 1,0 3,5
14 12,5 16,0 16 — 30 10,5 — 11 — 8 34 56 13 10 1,5 2,0
19 21,0 26,0 24 — 40 18,0 18 25 — 10 42 92 16 12 2,0 3,0
24 60 75 28 — 55 27,0 27 30 — 16 52 112 18 14 2,0 3,0
28 160 200 38 — 65 30,0 30 35 — 18 58 128 20 15 2,5 4,0
38 325 405 45 — 80 38,0 38 45 — 20 68 158 24 18 3,0 4,0
42 450 560 55 85 95 46 46 50 28 22 74 174 26 20 3,0 4,0
48 525 655 62 95 105 51 51 56 32 24 80 192 28 21 3,5 4,0
55 685 825 74 110 120 60 60 65 37 28 88 218 30 22 4,0 4,5
1)
Other spiders/selection see page 18 et seqq.
2)
Depending on hub type. Hub types can be freely selected, for summary see page 124

ROTEX® GS 24 DKM 98 Sh-A-GS d25 1.0 - Ø38 2.5 - Ø25

Ordering
example: Optional: Bore
Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore
in spider

138 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
TOOLFLEX®
Other types:
ROTEX® GS - CF - DKM

RADEX®-NC

ROTEX® GS DKM with

clamping hubs DH type 7.5/7.6
COUNTEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 139
ROTEX® GS ZR3
Backlash-free intermediate shaft couplings

Intermediate shaft coupling with aluminium pipe bonded

For legend of pictogram please refer to flapper on the cover

90

ROTEX® GS type ZR3 hub material aluminium/intermediate pipe material aluminium

Dimensions [mm]
Minimum and maxi- General Cyl. screw
Size
mum finish bore LR LZR =LR+2  l3 DIN EN ISO 4762
dmin. dmax. DH l1 L l3 E min. max. min. max. dR DK t1 e 8.8 TA [Nm]
14 5 16 30 18,5 36,0 14,5 13 72 2971 101 3000 28 32,5 7,5 11,5 M3 1,34
19 8 20 40 25 49,0 17,5 16 98 2965 133 3000 40 46 8,0 14,5 M6 10
24 10 28 55 30 59,0 22,0 18 121 3456 165 3500 50 57,5 10,5 20 M6 10
28 14 38 65 35 67,0 25,0 20 137 3950 187 4000 60 73 11,5 25 M8 25
38 18 45 80 45 83,5 33,0 24 169 3934 235 4000 70 83,5 15,5 30 M8 25
42 22 50 95 50 93,0 36,5 26 180 3927 253 4000 80 93,5 18,0 32 M10 49
48 22 55 105 56 100,0 39,5 28 202 3921 281 4000 100 105 18,5 36 M12 86

Technical data of type ZR3

Moment of inertia Stat. torsion spring stiffness
Spider torque TKN [Nm] 1)
Size [10-3 kgm2] [Nm2/rad]
98 Sh-A 64 Sh-D Hub 2) ZR hub Pipe/meter ZW C2 3)
14 12,5 16,0 0,00406 0,00238 0,088 858
19 21,0 26,0 0,02002 0,01304 0,329 3243,6
24 60,0 75,0 0,07625 0,04481 0,673 6631,8
28 160 200 0,17629 0,10950 1,199 11814,1
38 325 405 0,50385 0,2572 2,972 29290,4
42 450 560 1,12166 0,5523 4,560 44929,7
48 525 655 1,87044 1,1834 9,251 91158,2
1)
Other spiders/selection see page 18 et seqq.
2)
With dmax.
3)
Torsion spring stiffness with a length of 1 m of intermediate pipe with LRohr = LZR - 2 · L
For enquiries and orders please specify the shaft distance dimension LR along with the maximum speed to review the critical bending speed.
The intermediate pipe could be combined with other hub designs, but in that case it can no longer be radially disassembled. Please mention the shaft distance dimension required in your order.
With vertical application a support washer has to be used (please mention in your order).
Insertion dimension of shaft l3, to make sure that the coupling can be assembled/disassembled radially.

Review of shaft-hub-connection: Friction torques for hub type 7.5

Size Ø5 Ø6 Ø8 Ø10 Ø11 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø46 Ø48 Ø50 Ø55
14 2,6 3,1 4,2 5,2 5,7 7,3 7,8 8,3
19 17 21 23 30 32 34 38 40 42
24 21 23 30 32 34 38 40 42 47 51 53 59
28 54 58 62 70 74 78 86 93 97 109 117 124 136 148
38 70 74 78 86 93 97 109 117 124 136 148 156 163 175
42 136 149 155 174 186 198 217 235 248 260 279 285 297 310
48 199 217 226 253 271 290 317 344 362 380 407 416 434 452 498

ROTEX® GS 24 ZR3 1200 mm 98 Sh A-GS 7.5 - Ø24 7.5 - Ø24

Ordering
example: Shaft distance
Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore
dimension (LR)

140 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
TOOLFLEX®
Shaft distance dimension

RADEX®-NC

Hub types
Type 7.5 Type 7.6
COUNTEX®

Clamping hub type DH without feather keyway for double- Clamping hub type DH with feather keyway for double-
cardanic connections cardanic connections

For continuously updated data please refer to our online catalogue at www.ktr.com 141
ROTEX® GS ZR1 und ZR2
Backlash-free intermediate shaft couplings

Intermediate shaft couplings with steel pipe/steel shaft

For legend of pictogram please refer to flapper on the cover

90

ROTEX® GS Type ZR1

Maximum Cyl. screw
Spider torque TKN
finish Dimensions [mm] DIN EN ISO
[Nm] 1)
bore 4762 – 8.8 Tightening Friction
Size Minimum torque TA torque TR
dimen- [Nm] [Nm]
98 Sh-A 64 Sh-D d 2) DH l1; l2 L E b s B LR1 LZR1 dR 3) Mxl
sion for
LR1

Pease mention
14 ZR1 12,5 16,0 16 30 11 35 13 10 1,5 11,5 71 LR1+22 14x2,5 M3x12 1,34 6,1

with inquiries
and orders
19 ZR1 21,0 26,0 24 40 25 66 16 12 2,0 14,0 110 LR1+50 20x3,0 M6x16 10,5 34
24 ZR1 60 75 28 55 30 78 18 14 2,0 16,0 128 LR1+60 25x2,5 M6x20 10,5 45
28 ZR1 160 200 38 65 35 90 20 15 2,5 17,5 145 LR1+70 35x4,0 M8x25 25 105
38 ZR1 325 405 45 80 45 114 24 18 3,0 21,0 180 LR1+90 40x4,0 M8x30 25 123

ROTEX® GS Type ZR2

Precision tube Clamping
Maxi-
Clamping screws
Spider torque TKN mum
Dimensions [mm] set size DIN EN
[Nm] 1) finish [mm] [Nm2/rad] Tightening
KTR 250 ISO 4762–
Size bore torque
12.9
TA [Nm]
Minimum
98 Sh-A 64 Sh-D d 2) DH l1; l2 l3 L E b s B LR2 dimension LZR2 dR C2 4) dxD Mxl
for LR2
14 ZR2 12,5 16,0 16 30 11 26 50 13 10 1,5 11,5 109 LR2+22 10x2,0 68,36 10x16 M4x10 5,2
Pease mention with inquiries

19 ZR2 21,0 26,0 24 40 25 26 67 16 12 2,0 14,0 120 LR2+50 12x2,0 130 12x18 M4x10 5,2
24 ZR2 60 75 28 55 30 38 86 18 14 2,0 16,0 156 LR2+60 20x3,0 954,9 20x28 M6x18 17,0
28 ZR2 160 200 38 65 35 45 100 20 15 2,5 17,5 177 LR2+70 25x2,5 1811 25x34 M6x18 17,0
and orders

38 ZR2 325 405 45 80 45 45 114 24 18 3,0 21,0 192 LR2+90 32x3,5 5167 32x43 M6x18 17,0
42 ZR2 450 560 55 95 50 52 128 26 20 3,0 23,0 214 LR2+100 40x4,0 11870 40x53 M6x18 17,0
48 ZR2 525 655 62 105 56 70 154 28 21 3,5 24,5 261 LR2+112 45x4,0 17486 45x59 M8x22 41,0
55 ZR2 685 825 74 120 65 80 175 30 22 4,0 26,0 288 LR2+130 55x4,0 33543 55x71 M8x22 41,0
65 ZR2 940 1175 80 135 75 80 185 35 26 4,5 30,5 387 LR2+150 60x4,0 44362 60x77 M8x22 41,0
1)
Other spiders/selection see page 18 et seqq.
2)
Depending on hub type. Hub types can be freely selected, for summary see page 124
3)
Has to be remachined, if necessary
4)
Torsion spring stiffness with a length of 1 m of intermediate pipe
For inquiries and orders please specify the shaft distance dimension LR1/LR2 along with the maximum speed to review the critical bending speed.
With vertical application a support washer has to be used (please mention in your order).

ROTEX® GS 24 ZR1 1000 mm 98 Sh-A-GS 1.0 - Ø24 2.5 - Ø24

Ordering
example: Shaft distance
Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore
dimension (LR)

142 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
Type ZR1 –– Double- and single-cardanic types

TOOLFLEX®
Type ZR2

RADEX®-NC
COUNTEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 143
TOOLFLEX®
Metal bellow-type couplings

Technical description
TOOLFLEX® is a metal bellow-type coupling, a coupling system
which has proven its worth in the field in many cases. The metal
bellow compensates perfectly for axial, radial and angular displace-
ments. At the same time its geometric shape allows for high tor-
sional stiffness and a low mass moment of inertia. TOOLFLEX® is
manufactured in twelve sizes for maximum torques up to 600 Nm.
Its main application ranges are both positioning drives, e. g. ball
spindles with a high incline, and indexing tables or planetary and
worm gears with small gear ratios.

Subject to its well-proven joint procedure a non-positive, back-

lash-free connection of the aluminium hubs with the multilayer
bellows made from stainless steel is generated. The flanged in-
sert connection for sizes 16 to 45 ensures a torque transmission
by every single bellow layer. Since TOOLFLEX®is a metal cou-
pling, it remains fatigue-endurable in the high temperature range
up to a maximum of 200 °C. Apart from that it is resistant to
the effect of media or critical operating conditions, respectively.

The well-known shaft-hub-connection by means of clamping hubs clamping hub with two slots
ensures an easy assembly by a radial clamping screw.
Subject to two slots in the hub there is no deformation of the bellow
when tightening the clamping screw.
For higher friction torques type KN with taper hubs can be used.

Types

Type with thread for Type with clamping

setscrews hubs Type KN Type PI Type CF
Summary
Thread for setscrews Clamping hubs
KN PI CF
(hub type 1.0/1.1) (hub type 2.5/2.6)
Bellow-hub- Torque Torque Torque Torque Torque Torque
Size Type Torque Max. Torque Max. Torque Max. Max. Torque Max.
connection of bellow of bellow of bellow of bel- of bellow of bellow
of bellow speed of bellow speed of bellow speed speed of bellow speed
TK max. TK max. T lowTKN TK max. T
TKN [Nm] [rpm] TKN [Nm] [rpm] TKN [Nm] K max. [rpm] [rpm] TKN [Nm] K max. [rpm]
[Nm] [Nm] [Nm] [Nm] [Nm] [Nm]
S
5 0,1 0,15 47700
M
temperature 100°C
Maximum ambient

S
7 1 1,5 31800 1 1,5 31800
Bonded

M
S
9 1,5 2,25 23800 1,5 2,25 23800
M
S
12 2 3 19000 2 3 19100
M
S
16 5 7,5 14900 5 7,5 14900
Maximum ambient temperature 200°C

M
S
20 15 22,5 11900 15 22,5 11950 15 22,5 11950
M
S
30 35 52,5 8700 35 52,5 15280 35 52,5 8700 35 52,5 8700
Flanged

M
S
38 65 97,5 7350 65 97,5 12600 65 97,5 7350 65 97,5 7350
M
S
42 95 142,5 6820 95 142,5 11580 95 142,5 6820 95 142,5 6820
M
S
45 150 225 5750 150 225 9300 150 225 5750 150 225 5750
M
S
temperature

55 340 510 4800 340 510 7870 340 510 4800

Maximum
Welded

ambient

200°C

M
S
65 600 900 3850
M

144 For continuously updated data please refer to our online catalogue at www.ktr.com
TOOLFLEX®
Metal bellow-type couplings

ROTEX® GS
Hub types
Due to the numerous applications of TOOLFLEX® for many different applications and mounting situations, this coupling system is available
with various hub designs and two different lengths of bellows. A combination of the components forms a type.
TOOLFLEX® is supplied as a complete unit; a supply of individual components is not possible.

Type 1.0 Type 1.1 without keyway, with setscrew

with feather keyway and setscrew
Positive locking power transmission. Perm. torque depend- Non-positive torque transmission, suitable for backlash-free
ing on the permissible surface pressure. Not suitable for transmission of very small torques.
backlash-free power transmission with heavily reversing
operation.

Type 1.3 with spline bore Type 1.2 without feather keyway, without thread for
setscrews
Positive locking power transmission. Spline on request of For low torques Suitable for bonding or pressing onto the
customers (e. g. sfor shaft with flattening) shaft.

TOOLFLEX®
Type 2.5 Clamping hub double slot, without feather Type 2.6 Clamping hub double slot, with feather keyway
keyway
Frictionally engaged, backlash-free shaft-hub-connection-. Positive locking power transmission with additional friction-
Transmittable torques depending on bore diameter ally engaged condition. The frictionally engaged condition
prevents or reduces reverse backlash, respectively. Surface
pressure of the keyway connection is reduced.

Type 6.5 Taper hub KN Flange

Integrated frictionally engaged shaft-hub-connection for the Flange to connect to customer’s component. Special dimen-
transmission of higher torques in the area of the shaft-hub- sions on request.
connection.

Bellow type S Bellow type M

RADEX®-NC
Bellow with 4 layers made of stainless steell; compact Bellow with 4 layers made of stainless steel; realizing large
design with high torsion spring stiffness. shaft distance dimensions and displacements

Special designs on request of customers

Special bellows

Bellows with 1, 2 or 3 layers available on request.

COUNTEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 145
TOOLFLEX® S
Metal bellow-type couplings

Type S: Hubs with threads for setscrews

For legend of pictogram please refer to flapper on the cover

100 200

TOOLFLEX® S type 1.1

TOOLFLEX® S with thread for setscrews (type 1.1) Hub material aluminium/bellow material stainless steel
Dimensions [mm]
Bellow-hub-
conncection

Perm. displacements Torsion Weight 3)

Torque of
Max. speed Finish bore General Set screw spring stiff-
Size bellow TKN
n [rpm] Number Axial Radial Angular ness C T
1)
[Nm] min. d max. d DH dH L l1; l2 M t [kg]
2)
z [mm] [mm] [degrees] [Nm/rad]
5 0,1 47700 2 5 10 6 15 6 M2 1,8 1 ±0,30 0,10 0,7 97 0,0027
7 4)
1,0 31800 3 8 15 9 18 7 M3 2,0 1 ±0,30 0,10 0,7 390 0,005
9 1,5 23800 3 10 20 12 21 8 M3 2,2 2 ±0,35 0,15 1,0 750 0,010
12 2,0 19000 4 14 25 16 27,5 11 M4 2,8 2 ±0,40 0,15 1,0 1270 0,017
16 5)
5,0 14900 5 18 32 20 37 13 M5 4 2 ±0,30 0,15 1,0 4500 0,046
20 15 11900 6 25 40 27 42 15 M5 5 2 ±0,40 0,15 1,0 9600 0,076
1)
For selection see page 18 et seqq.
2)
Quantity each hub; from size 9: 2x120° offset
3)
Details referring to the overall coupling with max. bore
4)
Bonded
5)
Flanged

Hub designs
Type 1.0 Type 1.1

Hub with feather keyway and setscrew Hub without feather keyway, with setscrew

Type 1.3 Type 1.2

Hub with spline bore Hub without feather keyway, without setscrew

TOOLFLEX® 7 S 1.1 - Ø4 1.1 - Ø6

Ordering
example: Size and type of coupling Hub type Finish bore Hub type Finish bore

146 For continuously updated data please refer to our online catalogue at www.ktr.com
TOOLFLEX® M
Metal bellow-type couplings

ROTEX® GS
Type M: Hubs with threads for setscrews

For legend of pictogram please refer to flapper on the cover

100 200

TOOLFLEX® M type 1.1

TOOLFLEX®
TOOLFLEX® M with thread for setscrews (type 1.1) Hub material aluminium/bellow material stainless steel
Dimensions [mm]
Bellow-hub-
conncection

Torsion

RADEX®-NC
Torque of Perm. displacements Weight 3)
Max. speed Finish bore General Set screw spring stiff-
Size bellow TKN
n [rpm] Number Axial Radial Angular ness C T
1)
[Nm] min. d max. d DH dH L l1; l2 M t [kg]
2)
z [mm] [mm] [degrees] [Nm/rad]
5 0,1 47700 2 5 10 6 17 6 M2 1,8 1 ±0,40 0,15 1,0 75 0,003
7 4)
1,0 31800 3 8 15 9 20 7 M3 2,0 1 ±0,40 0,15 1,0 300 0,006
9 1,5 23800 3 10 20 12 24 8 M3 2,2 2 ±0,50 0,20 1,5 580 0,011
12 2,0 19000 4 14 25 16 31 11 M4 2,8 2 ±0,60 0,20 1,5 980 0,019
16 5)
5,0 14900 5 18 32 20 41 13 M5 4 2 ±0,50 0,20 1,5 3050 0,049
20 15 11900 6 25 40 27 49 15 M5 5 2 ±0,60 0,20 1,5 6600 0,082
1)
For selection see page 18 et seqq.
2)
Quantity each hub; from size 9: 2x120° offset
3)
Details referring to the overall coupling with max. bore
4)
Bonded
5)
Flanged

Hub designs
Type 1.0 Type 1.1

Hub with feather keyway and setscrew Hub without feather keyway, with setscrew

Type 1.3 Type 1.2

COUNTEX®

Hub with spline bore Hub without feather keyway, without setscrew

TOOLFLEX® 7 M 1.1 - Ø4 1.1 - Ø6

Ordering
example: Size and type of coupling Hub type Finish bore Hub type Finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 147
TOOLFLEX® S
Metal bellow-type couplings

Type S: With clamping hubs

For legend of pictogram please refer to flapper on the cover

100 200

TOOLFLEX® Type S with clamping hubs Hub material aluminium (size 55/65 steel/bellow material stainless steel
Dimensions [mm]
Size Min./max. finish bore General Clamping screws DIN EN ISO 4762
min. d max. d L l1; l2 E DH dH M1 D3 t1 e1 TA [Nm]
7 3 7 24 9 6 15 9 M2 16,5 3,2 5 0,37
9 3 9 29 11 7 20 12 M2,5 21,5 3,5 7,1 0,76
12 4 12 34,5 13 8,5 25 16 M3 26,5 4 8,5 1,34
16 5 16 45 17,0 11 32 20 M4 35,0 5 12,0 2,9
20 8 20 55 21,5 12 40 27 M5 43,5 6 14,5 6
30 10 30 63 23,0 17 55 33 M6 58,0 7 19 10
38 12 38 69 25,5 18 65 42 M8 72,6 9 25 25
42 14 42 84 30,0 24 70 46 M8 76,1 9 27 25
45 14 45 86,5 32,0 22,5 83 58 M10 89,0 11 30 49
55 4) 20 55 111 40,0 31 100 73 M12 106,0 14 37 120
65 4) 30 65 126 45,0 36 125 95 M14 127,2 15 45 185

Technical data
Bellow-hub-
connection

Torque of Moment of Torsion spring Axial Radial Perm. displacements

Max. speed n Weight 2)
Size bellow inertia 2) stiffness CT spring stiffness spring stiffness
[rpm] Axial Angular [kg]
TKN 1) [Nm] [x10-6kgm2] [Nm/rad] [N/mm] [N/mm] Radial [mm]
[mm] [degrees]
7 1 31800 0,26 390 — — ±0,3 0,10 0,7 0,007
Bonded

9 1,5 23800 0,97 750 — — ±0,35 0,15 1,0 0,014

12 2 19100 2,6 1270 — — ±0,4 0,15 1,0 0,025
16 5 14900 9 4500 43 138 ±0,3 0,15 1,0 0,06
20 15 11950 30 9600 63 189 ±0,4 0,15 1,0 0,12
Flanged

30 35 8700 114 17800 97 233 ±0,5 0,20 1,5 0,24

38 65 7350 245 37400 108 318 ±0,6 0,20 1,5 0,35
42 95 6820 396 54700 120 499 ±0,6 0,20 1,5 0,49
45 150 5750 931 95800 132 738 ±0,9 0,25 1,5 0,82
55 3) 340 4800 4996 144100 160 894 ±1,0 0,25 1,5 3,2
65 3) 600 3850 13318 322740 212 1365 ±1,0 0,30 1,5 5,5
1)
For selection see page 18 et seqq.
2)
Details referring to the overall coupling with max. bore
3)
Hub made of steel welded to bellow

Review of shaft-hub-connection: Friction torques for hub type 2.5

Size Ø3 Ø4 Ø5 Ø6 Ø7 Ø8 Ø9 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø50 Ø55 Ø60 Ø65
7 0,84 0,91 0,97 1,04 1,10
9 1,87 1,98 2,09 2,20 2,31 2,41 2,52
12 3,48 3,65 3,81 3,98 4,14 4,31 4,48 4,64 4,81
16 8,5 8,8 9,1 9,4 9,7 9,9 10,2 10,5 11,1 11,4 11,7
20 17,6 18,1 18,6 19,1 19,5 20,5 21,0 21,4 22,4 22,9 23,3
30 33,1 33,8 35,1 35,8 36,5 37,8 38,5 39,2 41,9 42,5 44,6 45,9
38 79,2 80,4 81,7 84,2 85,4 86,6 91,6 92,8 96,5 99,0 102 105 109
42 84,2 85,4 86,6 89,1 90,3 91,6 96,5 97,8 102 104 106 110 114 116 119
45 157 165 167 173 177 181 187 193 197 200 206
55 4) 397 401 413 421 429 442 454 462 470 482 502 523
65 4) 720 732 750 768 780 792 810 840 870 900 930

TOOLFLEX® 30 S 2.5 Ø25 2.5 Ø30

Ordering-
example: Size and type of cou-
Hub type Finish bore Hub type Finish bore
pling

148 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
Feather keyway acc. to
DIN 6885
optionally

TOOLFLEX®
Thread M1

Other types:
Type for FANUC motors

RADEX®-NC

Hub types
Type 2.5 Type 2.6
COUNTEX®

Clamping hub, double slotted, without feather keyway Clamping hub, single slotted, with feather keyway

For continuously updated data please refer to our online catalogue at www.ktr.com 149
TOOLFLEX® M
Metal bellow-type couplings

Type M: With clamping hubs

For legend of pictogram please refer to flapper on the cover

100 200

TOOLFLEX® Type M with clamping hubs Hub material aluminium (size 55/65 steel/bellow material stainless steel
Dimensions [mm]
Size Min./max. finish bore General Clamping screws DIN EN ISO 4762
min. d max. d L l1; l2 E DH dH M1 D3 t1 e1 TA [Nm]
7 3 7 26 9 8 15 9 M2 16,5 3,2 5 0,37
9 3 9 32 11 10 20 12 M2,5 21,5 3,5 7,1 0,76
12 4 12 38 13 12 25 16 M3 26,5 4 8,5 1,34
16 5 16 49 17,0 15 32 20 M4 35,0 5 12 2,9
20 8 20 62 21,5 19 40 27 M5 43,5 6 14,5 6
30 10 30 72 23,0 26 55 33 M6 58,0 7 19 10
38 12 38 81 25,5 30 65 42 M8 72,6 9 25 25
42 14 42 95 30,0 35 70 46 M8 76,1 9 27 25
45 14 45 103 32,0 39 83 58 M10 89,0 11 30 49
55 4) 20 55 125 40,0 45 100 73 M12 106,0 14 37 120
65 4) 30 65 142 45,0 52 125 95 M14 127,2 15 45 185

Technical data
hub-con-

Torque of Moment of Torsion spring Axial Radial spring Perm. displacements

Bellow-

nection

Max. speed n Weight 2)

Size bellow inertia 2) stiffness CT spring stiffness stiffness
[rpm] [kg]
TKN [Nm] 1) [x10-6kgm2] [Nm/rad] [N/mm] [N/mm] Axial [mm] Radial [mm] Angular [degrees]
7 1 31800 0,3 300 — — ±0,4 0,15 1,0 0,008
Bonded

9 1,5 23800 1,0 580 — — ±0,5 0,20 1,5 0,015

12 2 19100 2,7 980 — — ±0,6 0,20 1,5 0,03
16 5 14900 10 3050 29 92 ±0,5 0,20 1,5 0,06
20 15 11950 32 6600 42 126 ±0,6 0,20 1,5 0,14
Flanged

30 35 8700 123 14800 65 155 ±0,8 0,25 2,0 0,31

38 65 7350 262 24900 72 212 ±0,8 0,25 2,0 0,45
42 95 6820 427 36500 80 333 ±0,8 0,25 2,0 0,52
45 150 5750 1020 64000 88 492 ±1,0 0,30 2,0 1,13
55 3) 340 4800 5118 96100 107 598 ±1,0 0,30 2,0 3,3
65 3) 600 3850 13727 226550 135 910 ±2,0 0,35 2,0 5,6
1)
For selection see page18 ff.
2)
Details referring to the overall coupling with max. bore
3)
Hub made of steel welded to bellow

Review of shaft-hub-connection: Friction torques for hub type 2.5

Size Ø3 Ø4 Ø5 Ø6 Ø7 Ø8 Ø9 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø50 Ø55 Ø60 Ø65
7 0,84 0,91 0,97 1,04 1,10
9 1,87 1,98 2,09 2,20 2,31 2,41 2,52
12 3,48 3,65 3,81 3,98 4,14 4,31 4,48 4,64 4,81
16 8,5 8,8 9,1 9,4 9,7 9,9 10,2 10,5 11,1 11,4 11,7
20 17,6 18,1 18,6 19,1 19,5 20,5 21,0 21,4 22,4 22,9 23,3
30 33,1 33,8 35,1 35,8 36,5 37,8 38,5 39,2 41,9 42,5 44,6 45,9
38 79,2 80,4 81,7 84,2 85,4 86,6 91,6 92,8 96,5 99,0 102 105 109
42 84,2 85,4 86,6 89,1 90,3 91,6 96,5 97,8 102 104 106 110 114 116 119
45 157 165 167 173 177 181 187 193 197 200 206
55 4) 397 401 413 421 429 442 454 462 470 482 502 523
65 4) 720 732 750 768 780 792 810 840 870 900 930

TOOLFLEX® 30 M 2.5 Ø25 2.5 Ø30

Ordering-
example: Size and type of cou-
Hub type Finish bore Hub type Finish bore
pling

150 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
Feather keyway acc. to
DIN 6885
optionally

TOOLFLEX®
Thread M1

Other types:
Type for FANUC motors

RADEX®-NC

Hub types
COUNTEX®

Type 2.5 Type 2.6

Clamping hub, double slotted, without feather keyway Clamping hub, single slotted, with feather keyway

For continuously updated data please refer to our online catalogue at www.ktr.com 151
TOOLFLEX® KN
Metal bellow-type couplings

Taper hubs for high friction torques

For legend of pictogram please refer to flapper on the cover

200

TOOLFLEX® Type S-KN Hub material steel/bellow stainless steel

Dimensions [mm]
Torque of Finish bore L Ltotal. Clamping screws Pull-off threads
Max. speed Weight 5)
Size bellow
n [rpm] l1; l2 DH D1 D2 [kg]
TKN 1) [Nm] min. d max.d 4 2)
4 2)
M TA [Nm] Number z M1 Number z TA1 [Nm]
4)

30 35 15280 12 22 48 63 22 50 43 47 M4 2,9 12 M4 6 1,2 0,4

38 65 12600 12 28 56 75 26 60,5 52 56 M5 6 12 M5 6 1,4 0,7
42 95 11580 14 35 64 82 29 66 60 63 M5 6 12 M5 6 1,4 0,8
45 150 9300 15 40 74,5 99 34 82 68 77 M6 14 12 M6 6 3 1,5
55 3) 340 7870 15 56 95,5 120 40 97 95 95 M8 35 12 M8 6 6 2,5
1)
For selection see page 18 et seqq.
2) 1)
Type S = 4 layers
3)
Hub made of steel welded to bellow
4) 5)
After assembly of the clamping screws (M) tighten the tack thread (M1) to the torque TA1 indicated.
5)
Details referring to the overall coupling with max. bore

TOOLFLEX® Type M-KN Hub material steel/bellow stainless steel

Abmessungen [mm]
Torque of Finish bore L Ltotal Clamping screws Pull-off threads
Max. speed Weight 5)
Size bellow
n [rpm] l1; l2 DH D1 D2 [kg]
TKN 1) [Nm] min. d max.d 6 layers 2) 6 layers 2) M TA [Nm] Number z M1 Number z TA15)[Nm]

30 35 15280 12 22 57 63 22 50 43 47 M4 2,9 12 M4 6 1,2 0,4

38 65 12600 12 28 68 75 26 60,5 52 56 M5 6 12 M5 6 1,4 0,7
42 95 11580 14 35 75 82 29 66 60 63 M5 6 12 M5 6 1,4 0,8
45 150 9300 15 40 91 99 34 82 68 77 M6 14 12 M6 6 3 1,5
55 4) 340 7870 15 56 109 120 40 97 95 95 M8 35 12 M8 6 6 2,5
1)
For selection see page 18 et seqq.
2)
Type M = 6 layers
3)
Hub made of steel welded to bellow
4) 5)
After assembly of the clamping screws (M) tighten the tack thread (M1) to the torque TA1 indicated.
5)
Details referring to the overall coupling with max. bore

Review of shaft-hub-connection: Friction torques for hub type 6.5

Size Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55
30 50 58 66 71 79
38 81 92 130 103 149 161 202
42 105 117 168 131 164 189 215 257
45 230 332 230 288 331 376 451 531 589
55 4) 483 606 696 792 585 690 764 843 967 1101 1194 1445

TOOLFLEX® 38 S-KN Ø15 Ø22

Ordering-
example: Size and type of coupling Finish bore Finish bore

152 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
TOOLFLEX® S-KN

TOOLFLEX®
TOOLFLEX® M-KN

Other types: RADEX®-NC

TOOLFLEX® KN for FANUC motors
COUNTEX®

Hub types
Type 6.5

Taper hub KN

For continuously updated data please refer to our online catalogue at www.ktr.com 153
 TOOLFLEX® PI
Metal bellow-type couplings

Axial plug-in

For legend of pictogram please refer to flapper on the cover

200

TOOLFLEX® Type S-PI Hub material aluminium/bellow stainless steel

Dimensions [mm]
Size Type General Clamping screw
min. d1;d2 max. d1 max.d2 L 1) l1 l2 E DH H M1;M2 D3 e t1;t2 TA [Nm]
20 S 8 20 20 67,0 21,5 33,5 19,0 40 0,5 - 1 M5 43,5 14,5 6 6
30 S 10 30 28 73,5 23,0 33,5 26,0 55 0,5 - 1 M6 58,0 19,0 7 10
38 S 12 38 32 87,5 25,5 44,0 30,0 65 0,5 - 1,5 M8 72,6 25,0 9 25
42 S 14 42 35 93,0 30 39,0 35,0 70 0,5 - 1,5 M8 76,1 25,0 9 25
45 S 14 45 42 96,0 32,0 41,5 39,0 83 0,5 - 1,5 M10 89,0 30,0 11 49
NEW 55 S 20 55 55 130,0 40 58,5 31 100 0,5 - 1,5 M12 106,0 37 14 120
Technical data of TOOLFLEX® S-PI
Moment of Torsion spring Axial Radial Perm. displacements
Torque of bellow Max. speed n Weight 4)
Size Type inertia 4) stiffness CT spring stiffness spring stiffness Angular
TKN [Nm] 2) [rpm] Radial [mm] [kg]
[x10-6kgm2] [Nm/rad] [N/mm] [N/mm] [degrees]
20 S 15 11950 37 6600 63 189 0,15 1,0 0,15
30 S 35 8700 140 11500 97 233 0,20 1,5 0,29
38 S 65 7350 329 21500 108 318 0,20 1,5 0,50
42 S 95 6820 396 31500 120 499 0,20 1,5 0,49
45 S 150 5750 1031 55000 132 738 0,25 1,5 0,93
NEW 55 S 340 4800 6150 144100 160 894 0,25 1,5 3,80

TOOLFLEX® Type M-PI Hub material aluminium/bellow stainless steel

Dimensions [mm]
Size Type General Clamping screw
min. d1;d2 max. d1 max.d2 L 1) l1 l2 E DH H M1;M2 D3 e t1;t2 TA [Nm]
20 M 8 20 20 74,0 21,5 33,5 19,0 40 0,5 - 1 M5 43,5 14,5 6 6
30 M 10 30 28 82,5 23,0 33,5 26,0 55 0,5 - 1 M6 58,0 19,0 7 10
38 M 12 38 32 99,5 25,5 44,0 30,0 65 0,5 - 1,5 M8 72,6 25,0 9 25
42 M 14 42 35 104,0 30 39,0 35,0 70 0,5 - 1,5 M8 76,1 25,0 9 25
45 M 14 45 42 112,5 32,0 41,5 39,0 83 0,5 - 1,5 M10 89,0 30,0 11 49
NEW 55 M 20 55 55 143,5 40 58,5 45 100 0,5 - 1,5 M12 106,0 37 14 120
Technical data of TOOLFLEX® M-PI
Moment of Torsion spring Axial Radial Perm. displacements
Torque of bellow Max. speed n Weight 3)
Size Type inertia 4) stiffness CT spring stiffness spring stiffness Angular [de-
TKN [Nm] 2) [rpm] Radial [mm] [kg]
[x10-6kgm2] [Nm/rad] [N/mm] [N/mm] grees]
20 M 15 11950 38 4900 42 126 0,20 1,5 0,16
30 M 35 8700 145 10200 65 155 0,25 2,0 0,31
38 M 65 7350 346 15100 72 212 0,25 2,0 0,52
42 M 95 6820 427 22000 80 333 0,25 2,0 0,52
45 M 150 5750 1127 41000 88 492 0,30 2,0 1,00
NEW 55 M 340 4800 6270 96100 107 598 0,30 2,0 3,90
1)
When being plugged in
2)
For selection see page 18 et seqq.
3)
Figures refer to the complete coupling with max. bores

Review of shaft-hub-connection: Friction torques for hub type 2.5 for Ød1/Ød2
Size Ø8 Ø9 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42
20 17,6 18,1 18,6 19,1 19,5 20,5 21,0 21,4 22,4 22,9 23,3
30 33,1 33,8 35,1 35,8 36,5 37,8 38,5 39,2 41,9 42,5 44,6 45,9
38 79,2 80,4 81,7 84,2 85,4 86,6 91,6 92,8 96,5 99,0 102
42 79,2 80,4 81,7 84,2 85,4 86,6 91,6 92,8 96,5 99,0 102 105
45 157 165 167 173 177 181 187 193 197 200
NEW 55 397 401 413 421 429 442 454 462 470

TOOLFLEX 30 S-PI
®
d1 - Ø22 d2 - Ø18
Ordering
example: Size and type of coupling Finish bore Finish bore

154 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
TOOLFLEX® S-PI
Feather keyway acc. to
DIN 6885 optionally

Thread M2 Thread M1

Prestress

TOOLFLEX®
TOOLFLEX® M-PI

RADEX®-NC
Feather keyway acc. to
DIN 6885 optionally

Thread M2 Thread M1

Prestress
COUNTEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 155
TOOLFLEX® CF
Metal bellow-type couplings

Flange programme

For legend of pictogram please refer to flapper on the cover

200

TOOLFLEX® Type S-CF Hub material aluminium (size 55 steel)/bellow stainless steel
Finish bore Dimensions [mm] Clamping screw Flange
Size
min. d1 max. d1 DH DB DF d2 H7 l3 l1 l2 E L DK e1 t1 M TA DT M1
25 30
30 10 20 55 50 47 1,5 16 23,0 17,0 56,0 58,0 19 7 M6 10 M4
29 34
29 35
38 12 38 65 60,5 55,75 1,5 18 25,5 18,0 61,5 72,6 25 9 M8 25 M5
36 42
36 42
42 14 42 70 66 62,95 1,5 21 30,0 24,0 75,0 76,1 27 9 M8 25 M5
43 49
38 45
45 14 45 83 82 77 1,5 23 32,0 22,5 77,5 89,0 30 11 M10 49 M6
49 56
51 60
55 2) 20 55 100 97 95 1,5 28 40,0 31,0 99,0 106,0 37 14 M12 120 M8
68 78

Technical data
Torsion spring Radial spring Perm. displacements
Torque of bellow Speed n Axial spring stiffness
Size Type stiffness CT stiffness Axial
TKN [Nm] 1) [rpm] [N/mm] Radial [mm] Angular [degrees]
[Nm/rad] [N/mm] [mm]
30 S 35 8700 14800 97 233 ±0,5 0,20 1,5
38 S 65 7350 24900 108 318 ±0,6 0,20 1,5
42 S 95 6820 36500 120 499 ±0,6 0,20 1,5
45 S 150 5750 64000 132 738 ±0,9 0,25 1,5
55 2) S 340 4800 96100 160 894 ±1,0 0,25 1,5
TOOLFLEX® Type M-CF Hub material aluminium (size 55 steel)/bellow stainless steel
Finish bore Dimensions [mm] Clamping screw Flange
Size
min. d1 max. d1 DH DB DF d2 H7 l3 l1 l2 E L DK e1 t1 M TA DT M1
25 30
30 10 20 55 50 47 1,5 16 23,0 26,0 65,0 58,0 19 7 M6 10 M4
29 34
29 35
38 12 38 65 60,5 55,75 1,5 18 25,5 30,0 73,5 72,6 25 9 M8 25 M5
36 42
36 42
42 14 42 70 66 62,95 1,5 21 30,0 35,0 86,0 76,1 27 9 M8 25 M5
43 49
38 45
45 14 45 83 82 77 1,5 23 32,0 39,0 94,0 89,0 30 11 M10 49 M6
49 56
51 60
55 2) 20 55 100 97 95 1,5 28 40,0 45,0 113,0 106,0 37 14 M12 120 M8
68 78
Technical data
Torsion spring stiff- Radial spring stiff- Perm. displacements
Torque of bellow Speed n Axial spring stiffness
Size Type ness CT ness Axial
TKN [Nm] 1) [rpm] [N/mm] Radial [mm] Angular [degrees]
[Nm/rad] [N/mm] [mm]
30 M 35 8700 14800 65 155 ±0,8 0,25 2,0
38 M 65 7350 24900 72 212 ±0,8 0,25 2,0
42 M 95 6820 36500 80 333 ±0,8 0,25 2,0
45 M 150 5750 64000 88 492 ±1,0 0,30 2,0
55 2) M 340 4800 96100 107 598 ±1,0 0,30 2,0
1)
For selection see page 18 et seqq.
2)
Hub made of steel welded to bellow

Review of shaft-hub-connection: Friction torques for hub type 2.5

Size Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø50 Ø55
30 33,1 33,8 35,1 35,8 36,5 37,8 38,5 39,2 41,9 42,5 44,6 45,9
38 84,2 85,4 86,6 91,6 92,8 96,5 99,0 102 105 109
42 84,2 85,4 86,6 89,1 90,3 91,6 96,5 97,8 102 104 106 110 114 116 119
45 157 165 167 173 177 181 187 193 197 200 206
55 4) 397 401 413 421 429 442 454 462 470 482 502 523

TOOLFLEX® 38 M-CF Ø15 Ø29 - Ø35 - 6xM5

Ordering-
example: Size and type of coupling Finish bore Dimensions of flange (d2 - DT - M1)

156 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
TOOLFLEX® S-CF

TOOLFLEX®
TOOLFLEX® M-CF

RADEX®-NC
COUNTEX®

For continuously updated data please refer to our online catalogue at www.ktr.com 157
RADEX®-NC
Servo lamina couplings

Technical description
RADEX®-NC is a line specifically developed for servo technology. In this
coupling a set of torsionally rigid steel laminas that are soft in bending
ensures a reliable compensation for axial, angular and radial shaft dis-
placements. As an all-metal coupling - the laminas are made of stainless
steel - RADEX®-NC can even be used with high temperatures (up to
200 °C) and under aggressive ambient conditions. The RADEX®-NC
is manufactured in 7 sizes from size 5 to 42 for max. torques of up to
360 Nm. The hubs are designed as frictionally engaged clamping hubs
made of aluminium (size 42 made of steel) and are thus backlash-free
even in a reversing drive.

A typical application of the RADEX®-NC are backlash-free worm gear

pairs with low transmissions. The rigidity of the coupling must be con-
verted by reason of the transmission of the gearbox from the drive side
to the driven side. Here the transmission itself has a decisive influence
because it is squarely included in the calculation. This converted rigidity
is added in line to the gearbox stiffness in order to get the total rigidity. In
case of transmissions that are smaller than i = 8 we recommend to use
the RADEX®-NC due to the loss of rigidity of the total system arising if
flexible couplings are used.

Engine Coupling Gearbox

Use in explosive applications

RADEX ® -NC couplings are suitable for power trans-
mission in drives in hazardous areas. The couplings are
certified and confirmed according to EC standard 94/9/EC (ATEX
95) as units of category 2G/2D and thus suitable for the use in
hazardous areas of zone 1, 2, 21 and 22. Please read through
our information included in the respective Type Examination
Certificate and the operating and mounting instructions at www.ktr.com.
Selection:
If used in hazardous areas the clamping ring hubs (clamping hubs with-
out feather keyway only for use in category 3 (with feather keyway for
cat. 2) must be selected such that there is a minimum safety factor of s
= 2 between the peak torque (including all operating parameters) and
the nominal torque and frictional torque of engagement of the coupling.

Hub types

Type 2.5 Clamping hub double slot, without feather Type 2.6 Clamping hub double slot, with feather keyway
keyway
Frictionally engaged, backlash-free shaft-hub-connection. Positive locking power transmission with additional friction-
Transmittable torques depending on bore diameter ally engaged condition. The frictionally engaged condition
prevents or reduces reverse backlash, respectively. Surface
pressure of the keyway connection is reduced.

158 For continuously updated data please refer to our online catalogue at www.ktr.com
RADEX®-NC DK and EK
Servo lamina couplings

ROTEX® GS
Double- and single-cardanic types

For legend of pictogram please refer to flapper on the cover

200

Type DK Type EK

TOOLFLEX®
RADEX®-NC Types DK and EK Hub and spacer material aluminium (size 42 steel)/laminas stainless steel
Dimensions [mm] Clamping screw Mass moments of inertia
Size
max. d1/d2 DH l1;l2 LDK EDK LEK dh s t M TA [Nm] DK [kgm2] EK [kgm2]
5 12 26 12 34 10 26,5 12 2,5 3,5 M2,5 0,8 0,000004 0,000003

RADEX®-NC
10 15 35 16 44 12 35 14,5 3 5,0 M4 3 0,000016 0,000012
15 20 47 21 55 13 45 19,5 3 6,8 M6 10 0,000065 0,000053
20 25 59 24 67 19 52 24 4 6,5 M6 10 0,000199 0,000154
25 35 70 32 88 24 69 30 5 9,0 M8 25 0,000508 0,000393
35 42 84 35 98 28 77 38 7 10,5 M10 49 0,001153 0,000911
42 55 104 40 116 36 91 48 11 10,5 M10 69 0,007458 0,006153

Technical data
Torsion spring stiffness
TKN 1) TK max 1) Max. speed Displacement type DK Displacement type EK
Size [Nm/rad]
[Nm] [Nm] [rpm]
Type EK Type DK Radial [mm] Axial [mm] Angular [°] Radial [mm] Axial [mm] Angular [°]
5 2,5 5 25000 2400 1200 0,10 0,4 1 — 0,2 1
10 7,5 15 20000 5600 2800 0,14 0,8 1 — 0,4 1
15 20 40 16000 12000 6000 0,16 1,0 1 — 0,5 1
20 30 60 12000 30000 15000 0,25 1,2 1 — 0,6 1
25 60 120 10000 60000 30000 0,30 1,6 1 — 0,8 1
35 100 200 9000 72000 36000 0,40 2,0 1 — 1,0 1
42 300 600 7000 240000 120000 0,50 2,8 1 — 1,4 1
1)
See page 18 et seqq.

Review of shaft-hub-connection: Friction torques for hub type 2.5

Size Pilot bored Ø3 Ø5 Ø8 Ø10 Ø12 Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø45 Ø50 Ø55
5 2,5 2,2 2,3 2,4 2,5
COUNTEX®

10 4,5 8 9 10 10 11 11
15 5,5 28 30 31 32 32 34 35
20 7,5 36 37 38 39 40 41 44 45
25 9,5 82 83 87 88 93 94 98 100 103 106
35 11,5 155 157 165 167 173 177 181 187 193 197
42 15,0 285 287 296 301 307 315 323 329 343 357 370

RADEX®-NC 20 DK 2.5 Ø20 2.5 Ø25

Ordering-
example: Coupling size Type Hub type Finish bore Hub type Finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 159
COUNTEX®
Backlash-free shaft encoder couplings

Double-cardanic for measuring drives

For legend of pictogram please refer to flapper on the cover

160

COUNTEX® Hub material aluminium/spacer PEEK

Torque [Nm] Dimensions [mm] Displacements Torsion
Radial stiff- Axial restor-
spring
Size radial axial angular ness CR ing force
TKN TKmax. min. d max. d D l1/l2 E L stiffness CT
∆Kr [mm] ∆Ka [mm] ∆Kw [°] [N/mm] CA [N]
[Nm/rad]
6 0,3 0,6 2 6 15 4 4 12 0,05 -0,3/+0,6 0,36 48 26 10
12 0,5 1,0 2 12 22 6 3,5 15,5 0,10 -0,5/+1,0 0,45 120 65 25
14 1,0 2,0 5 14 31 8 4 20 0,12 -0,5/+1,0 0,57 235 70 27

General description
COUNTEX® is a three-part, backlash-free and torsionally stiff coupling specifically developed for the demands in measuring and control
technology.
Its axial plug-in ability combined with the geometry of hubs results in a coupling system with a specifically easy assembly offering options
of mounting fitting with processing. The material of the spacer is resistant to high temperatures ensuring almost continuous properties of
the coupling system even with temperatures up to 160 °C.

Applications
The measuring and control technology demands for a high torsion
spring stiffness of the coupling in order to realize reproduceable
positioning. At the same time the coupling has to compensate for
displacements without the large forces causing stresses for the ad-
jacent filigree components.
With its spacer made of highly temperature-resistant nylon our
COUNTEX® ensures an almost constant torsion spring stiffness
even with high temperatures. The double-cardanic principle of
COUNTEX® reduces the restoring forces to a minimum. Neverthe-
less it has very compact dimensions which make it excellently suit-
able for tight mounting spaces.

Use in explosive applications

COUNTEX ® couplings are suitable for positioning transmis-
sion in drives used in explosive areas. The couplings are certified
and confirmed according to EC standard 94/9/EC (ATEX 95) as
units of category 2G/2D and thus suitable for the use in hazardous
areas of zone 1, 2, 21 and 22. Please read through our informa-
tion included in the respective Type Examination Certificate and the
operating and mounting instructions at www.ktr.com.

COUNTEX® 14 1.1 Ø6,35 1.1 Ø10

Ordering-
example: Coupling size Hub type Finish bore Ød1 Hub type Finish bore Ød2

160 For continuously updated data please refer to our online catalogue at www.ktr.com
 ROTEX® GS
TOOLFLEX®
RADEX®-NC

Hub types
Type 1.0 with keyway and set screw Type 1.1
without keyway, with setscrew
Positive locking power transmission. Perm. torque depend- Non-positive torque transmission, suitable for backlash-free
COUNTEX®

ing on the permissible surface pressure. Not suitable for transmission of very small torques.
backlash-free power transmission with heavily reversing Standard
operation.

Type 1.3 Type 1.2 Hub

with spline bore without feather keyway without setscrew
Positive locking power transmission. Spline on request of For low torques. Suitable for bonding or pressing onto the
customers (e. g. sfor shaft with flattening) shaft.

For continuously updated data please refer to our online catalogue at www.ktr.com 161
162
Steel lamina couplings

Types and operating description 164

RADEX®-N
General information and types of hubs 166
Types and applications 167
Technical data 168
Standard types 170
Customized types 172
Corrosion-resistant type for
large shaft distances 173
Standard series NANA 3 for
pump drives in accordance with API 610 174

RIGIFLEX®-N
Technical data 176
Type A 178

RIGIFLEX®-HP
Type C 179
Type L 180
Technical data 181

RADEX®-N RIGIFLEX®-N RIGIFLEX®-HP

163
Steel lamina couplings
Types and operating description

Properties of lamina couplings

Product RADEX®-N RIGIFLEX®-N RIGIFLEX®-HP

Type Steel lamina coupling High-performance steel lamina coupling
Properties
Torsionally rigid   
Backlash-free   
Maintenance-free   
Compensating for misalignment   
Special features
For customized solutions,
Basic programme available from stock, Basic programme available from stock,
Stock programme applications in high performance ranges
customized solutions available customized solutions available
and on high-speed drives
Applications/core industries Pumps, compressors, fans Pumps, compressors, fans Pumps, turbo compressors, turbines
API 610 610 & 671 610 & 671
Performance data
Max. rated torque TKN [Nm] 280.000 280.000 330.000
Max. speed n [rpm] 20.000 23.000 17.300
Max. operating temperature T [°C] 280 280 280
Standard materials
Hubs
Steel (S355J2G3)  
Q & T steel (C45N)  
Q & T steel (42CrMo4V) 
Q & T steel (30CrNiMo8) 
Spacers
Steel (S355J2G3)  
Q & T steel (C45N)  
Q & T steel (42CrMo4V) with torsion shafts 
Q & T steel (30CrNiMo8) with torsion shafts 
Special materials (corrosion-resistant)
Hubs
Steel (1.4305) 
 
Steel (1.4404) 
Spacers
Steeel (1.4305) 
Steel (1.4404) 
 
Spacer made of Composite GFK (fibre glass) 
Spacer made of Composite CFK (carbon fibre) 
Painting, phosphating, zinc-plating and Painting, phosphating, zinc-plating and Painting, phosphating, zinc-plating and
Surface coating
passivating, Geomet, Tenifer Q passivating, Geomet, Tenifer Q passivating, Geomet, Tenifer Q

 ≈ Standard
 ≈ on request

164 For continuously updated data please refer to our online catalogue at www.ktr.com
Steel lamina couplings
Types and operating description

Product finder of lamina couplings

RADEX®-N
Product RADEX®-N RIGIFLEX®-N RIGIFLEX®-HP
Type Steel lamina coupling High-performance steel lamina coupling
Geometries
Design Single- and double-cardanic Double-cardanic Double-cardanic
Max. shaft diameter [mm] 330 400 380
Radial assembly   
Certifications/type examinations

ATEX   

GOST R/ GOST TR   

DNV GL   

 ≈ Standard

Details on lamina couplings

RIGIFLEX®-N
Laminas - FEM-optimized lamina shape

The steel lamina sets made of highly siff, stainless spring steel based
on FEM calculations. Considering the necessary options of displace-
ment of the coupling, the optimum shape with regard to torque transmis-
sion and torsional stiffness was aimed at. The waisted shape of the steel
laminas on the outside diameter resulted from this optimization calculation.

RADEX®-N - Lamina sets with dowel screws

Dowel screw (combination of frictional Lamina set with

engagement and positive locking) screws

The heart of the steel lamina coupling are the lamina sets and their connection
to hubs and spacers. High-strength, special dowel screws that are alternately
screwed to hubs and spacer enable a combination of frictional engagement and
positive locking. Thus a high power density with at the same time ease of displace-
ment and low restoring forces is ensured.
Spacer Hub

RIGIFLEX®-N - Protecting the spacer

Lamina set Special pins

RIGIFLEX®-HP

Since our main idea with the development of RIGIFLEX®-N was to comply with
the standards of API 610 and API 671, the spacer is secured by a safety catch,
too. In case that the laminas break the spacer remains within the coupling.
In general the removable part is supplied along with a lamina set preassembled
by the manufacturer. These are connected with the spacers or flanges absolutely
backlash-free via positive-locking special pins.
Safety gear

For continuously updated data please refer to our online catalogue at www.ktr.com 165
RADEX®-N
Steel lamina couplings

General information
Assembly and operating advice
(See our mounting instructions KTR standard 47110 at www.ktr.com.). With the assembly it is important
to make sure that the lamina sets are assembled free from distortion in axial direction. If the finish bore is
machined by the customer, the concentric and axial running tolerances have to be adhered to (see sketch).

Installation:
RADEX®-N couplings are designed for horizontal installation. For vertical installation the spacer might have
to be supported (see sketch). Please consult with us.

Delivery condition
RADEX®-N couplings are delivered as individual parts (can be delivered assembled on
request). The hubs can be supplied unbored or with finish bore and feather keyway or
with a frictionally engaged shaft-hub-connection. The shaft-hub-connection needs to be
inspected by the customer (consult with KTR, if necessary).

Balancing:
On request of the customer the RADEX®-N couplings can be balanced. For usual applications this is not necessary due to the accurate
machining of the coupling. Please consult with us, if necessary.

Safety regulations:
Th e coupling has to be dimensioned in a way that the permissible coupling
load is not exceeded during any operating condition. For this purpose the actual loads have to be compared to the permissible parameters
of the coupling. The customer has to protect rotating parts from accidental contact (Safety of Machines DIN EN 292 part 2). Please take
precautions that there is a sufficient coupling protection in case of fracture of the coupling caused by overload.

Hub designs

Type 1.0 Hub Type 2.5 Clamping hub double slot, without feather
with feather keyway and setscrew´ keyway
Positive locking power transmission, permissible torque Frictionally engaged, backlash-free shaft-hub-connection-.
depending on the permissible surface pressure. Not suitable Transmittable torques depending on bore diameter (For
for backlash-free power transmission with heavily reversing ATEX category 3 only)
operation.
Type 1.1 Hub Type 2.6 Clamping hub double slot, with feather keyway
without feather keyway with setscrew
Non-positive torque transmission for crimped and bonded Positive shaft-hub connection with additional frictional
connections (no ATEX release) engagement. The frictionally engaged condition prevents or
reduces reverse backlash, respectively.
Type 1.2 Hub
without feather keyway without setscrew
Non-positive torque transmission for crimped and bonded
connections (no ATEX release)

Type 6.0 Clamping ring hub

Integrated frictionally engaged shaft-hub-connection for the
transmission of higher torques. Clamping screws on lamina
side. Transmittable torques depending on bore diameter
Suitable for high speeds.
Type 6.5 Clamping ring hub
Integrated frictionally engaged shaft-hub-connection for the
transmission of higher torques. Clamping screws outside.
Transmittable torques depending on bore diameter Suitable
for high speeds.

166 For continuously updated data please refer to our online catalogue at www.ktr.com
RADEX®-N
Steel lamina couplings

Types and applications

Properties Applications

RADEX®-N
Type NN (see page 170)
zz Single-cardanic design zz Mixers
zz Only angular and axial displace- zz Agitators
ment permissible zz Immersion pumps
zz High torsional rigidity zz Fans
zz Compact dimensions zz Applications with high
radial load

Type NANA 1/NANA 2 (see page 170)

zz Double-cardanic design zz Paper machines
zz Compensating for high mis- zz Printing and processing
alignment with low restoring machines
forces zz Material Handling
zz Standard spacers available from zz Steel mills
stock zz Generators
zz Grinding machines

Type NANA 3 (see page 174)

zz Double-cardanic design zz Process pumps
zz Spacers adapted to standard zz Water pumps
dimensions of pumps zz Pumps according to API
zz Radial assembly, no shifting of standard
the machine required zz Turbines
zz Available according to API 610 zz Compressors

RIGIFLEX®-N
Type NANA 4 (see page 172)
zz Spacers can be determined by zz Foil and paper machines
the customer zz Pallet and conveyor
zz Max. shaft distance dimension systems
up to approx. 6 m zz Robotic palletizers
zz Welded intermediate pipes for zz Test benches
high torsional rigidity zz Cooling towers/blowers

Type NNW (see page 172) zz Spacers can be determined by zz Low speed drives with
the customer big shaft distance dimen-
zz Coupling consisting of 2 times sions
type NN with intermediate shaft zz Agitators
zz For drives with relatively low zz Crushers
speeds zz Presses
zz Packaging machines

Type NNZ (see page 171)

zz Compact double-cardanic zz Robotics
coupling zz Paper machines and
zz Cannot be radially assembled inserters
zz With intermediate disk zz Machine tools
zz Ideal for replacement of curved- zz Packaging machines
RIGIFLEX®-HP

tooth gear couplings from steel zz Test benches

zz Standard type up to size 70

Type NENE 1 (see page 171)

zz With reduced hubs zz Applications with short
zz Compact double-cardanic shaft distance dimen-
design sions
zz Spacer cannot be radially as- zz Replacement for curved-
sembled tooth gear couplings
zz Variable spacer length from steel

For continuously updated data please refer to our online catalogue at www.ktr.com 167
RADEX®-N
Steel lamina couplings

Technical data
The following lamina types are to be distinguished with RADEX®-N

Size 20 – 50 Size 60 – 135 Size 136 – 336 Size 138 – 338

(lamina with 4 holes) (lamina with 6 holes) (lamina with 6 holes) (lamina with 8 holes)

Torques and displacements

Torques [Nm] 1) Perm. displacements 2)
Axial
Radial [mm]
Size Lamina type Angle [°] each [mm]
TKN TK max TKW
lamina NANA 1/ NANA2/
NN NANA 1 NANA 2/NNZ
NNZ
20 15 30 5 1,0 0,60 1,2 1,0 0,2
25 30 60 10 1,0 0,80 1,6 1,0 0,2
35 60 120 20 1,0 1,00 2,0 1,1 0,3
lamina with 4 holes
38 120 240 40 1,0 1,20 2,4 1,2 0,3
42 180 360 60 1,0 1,40 2,8 1,2 0,4
50 330 660 110 1,0 1,60 3,2 1,5 0,4
60 690 1380 230 1,0 1,00 2,0 1,5 0,8
70 1100 2200 370 1,0 1,10 2,2 1,8 0,4
80 1500 3000 500 1,0 1,30 2,6 2,1 1,2
85 2400 4800 800 1,0 1,30 2,6 2,2 1,2
90 4500 9000 1500 1,0 1,00 2,0 2,2 1,1
105 5100 10200 1700 1,0 1,20 2,4 2,4 1,4
115 9000 18000 3000 1,0 1,40 2,8 2,5 1,5
135 lamina with 6 holes 12000 24000 4000 1,0 1,75 3,5 3,8 –
136 17500 35000 8750 0,7 1,85 3,7
156 25000 50000 12500 0,7 2,10 4,2
166 35000 70000 17500 0,7 2,25 4,5
186 42000 84000 21000 0,7 2,40 4,8
206 52500 105000 26250 0,7 2,60 5,2
246 90000 180000 45000 0,7 3,00 6,0
286 150000 300000 75000 0,7 3,35 6,7
336 210000 420000 105000 0,7 3,75 7,5 Depending on
138 23000 46000 11500 0,5 1,30 2,6 distance dimension E
158 33000 66000 16500 0,5 1,40 2,8
168 45000 90000 22500 0,5 1,50 3,0
188 56000 112000 28000 0,5 1,60 3,2
lamina with 8 holes
208 70000 140000 35000 0,5 1,75 3,5
248 120000 240000 60000 0,5 2,00 4,0
288 200000 400000 100000 0,5 2,40 4,5
338 280000 560000 140000 0,5 2,50 5,0

Permissible speeds and torsional stiffness figures

Torsion spring stiffness x 106 [Nm/ Torsion spring stiffness x 106 [Nm/
Max. speed [rpm] Max. speed[rpm]
Size rad] Size rad]
(higher speeds on request) (higher speeds on request)
per lamina set per lamina set
20 20000 0,02 156 3500 17,00
25 16000 0,03 166 3300 19,00
35 13000 0,11 186 3000 25,00
38 12000 0,20 206 2800 31,00
42 10000 0,28 246 2300 55,00
50 8000 0,50 286 2000 79,00
60 6700 0,56 336 1800 125,00
70 5900 0,90 138 3800 20,00
80 5100 1,10 158 3500 26,00
85 4750 1,50 168 3300 30,00
90 4300 2,00 188 3000 39,00
105 4000 2,50 208 2800 49,00
115 3400 3,50 248 2300 83,00
135 3000 6,90 288 2000 125,00
136 3800 13,00 338 1800 200,00
1)
For selection of coupling see page 14 et seqq.
2)
The permissible displacement figures specified are maximum figures which must not arise at the same time. If radial, axial and angular displacements arise in parallel, the figures need to be
reduced.

168 For continuously updated data please refer to our online catalogue at www.ktr.com
RADEX®-N
Steel lamina couplings

Technical data
Weights and mass moments of inertia

RADEX®-N
Hub 1) Lamina set NN 1) compl. NANA 1 1) compl. NANA 2 1) compl. NNZ 1) compl.
Size
[kg] / [kgm2] [kg] / [kgm2] [kg] / [kgm2] [kg] / [kgm2] [kg] / [kgm2] [kg] / [kgm2]
20 0,13 / 0,000043 0,04 / 0,00002 0,3 / 0,00011 0,6 / 0,000204 – 0,4 / 0,000166
25 0,2 / 0,000116 0,08 / 0,00005 0,56 / 0,00028 0,9 / 0,000522 – 0,8 / 0,000414
35 0,6 / 0,00042 0,10 / 0,00010 1,2 / 0,00094 1,9 / 0,00158 – 1,6 / 0,00129
38 0,8 / 0,00073 0,20 / 0,00026 1,8 / 0,0017 2,8 / 0,00303 – 2,4 / 0,00247
42 1,1 / 0,00123 0,25 / 0,00040 2,4 / 0,0029 3,6 / 0,00482 – 3,1 / 0,00409
50 1,7 / 0,00291 0,46 / 0,0010 4,0 / 0,0068 6,2 / 0,0118 – 5,1 / 0,00932
60 1,9 / 0,00378 0,40 / 0,0012 4,2 / 0,0087 6,0 / 0,0141 5,8 / 0,0138 5,3 / 0,0120
70 2,8 / 0,00714 0,42 / 0,0016 6,0 / 0,016 8,6 / 0,0253 8,2 / 0,0242 7,5 / 0,0214
80 4,1 / 0,0134 0,72 / 0,0037 9,0 / 0,031 12,6 / 0,0476 12,0 / 0,0458 11,1 / 0,0410
85 5,1 / 0,0195 1,0 / 0,0065 11,2 / 0,046 16,2 / 0,0734 15,5 / 0,0711 14,8 / 0,0650
90 6,2 / 0,0282 2,3 / 0,0162 14,7 / 0,073 22,0 / 0,121 21,3 / 0,119 20,1 / 0,108
105 7,6 / 0,0414 2,2 / 0,0180 17,4 / 0,101 25,8 / 0,165 24,6 / 0,159 23,1 / 0,145
115 12,0 / 0,0899 4,0 / 0,0433 27,9 / 0,223 42,8 / 0,381 41,2 / 0,372 38,3 / 0,333
135 19,0 / 0,187 7,3 / 0,105 45,1 / 0,478 71,3 / 0,835 – –
136 16,8 / 0,153 7,9 / 0,113 41,4 / 0,419 –
156 20,2 / 0,217 11,9 / 0,200 52,2 / 0,634 –
166 30,0 / 0,373 12,3 / 0,255 72,3 / 1,001 –
186 42,0 / 0,629 12,7 / 0,318 96,7/ 1,576 –
206 55,1 / 1,004 18,2 / 0,548 128,3 / 2,556 –
246 85,9 / 2,229 31,2 / 1,304 203,1 / 5,762 –
286 145,1 / 4,977 44,4 / 2,495 334,4 / 12,449 –
336 223,9 / 10,486 64,2 / 4,74 512,0 / 25,712 Depending on Depending on –
138 16,2 / 0,145 9,9 / 0,143 42,3 / 0,433 distance dimension E distance dimension E –
158 19,5 / 0,205 14,9 / 0,252 54,0 / 0,662 –
168 29,4 / 0,360 15,2 / 0,318 74,0 / 1,038 –
188 41,7/ 0,611 15,6 / 0,396 99,0 / 1,618 –
208 54,1 / 0,971 22,4 / 0,680 130,5 / 2,622 –
248 84,0 / 2,144 38,2 / 1,605 206,2 / 5,893 –

RIGIFLEX®-N
288 142,5 / 4,823 53,8 / 3,056 338,8 / 12,702 –
338 220,1 / 10,18 78,0 / 5,817 518,2 / 26,177 –

1)
Hubs with max. bore

Cylindrical bores

Standard hub 1.0 with feather keyway according to DIN 6885 sheet 1 1.
Size dmax. G t TA [Nm] Size dmax. G t TA [Nm]
20 20 M5 6 2,0 105 105 M12 30 40,0
25 25 M5 8 2,0 115 115 M12 30 40,0
35 35 M6 15 4,8 135 135
38 38 M6 15 4,8 136 / 138 135
42 42 M8 20 10,0 156 / 158 150
50 50 M8 20 10,0 166 / 168 165
60 60 M8 20 10,0 186 / 188 180 On request of customer
70 70 M10 20 17,0 206 / 208 200
80 80 M10 20 17,0 246 / 248 240
85 85 M10 25 17,0 286 / 288 280
90 90 M12 25 40,0 336 / 338 330

Backlash-free shaft-hub connections without feather key

Selection: In case of use in hazardous areas the clamping ring hubs must be selected in a way that there is a minimum safety factor of s =
2 between the peak torque (including all operating parameters) and the nominal torque and frictional torque of engagement of the coupling.

Clamping ring hub type Clamping ring hub type 6.0 Type with CLAMPEX® element type 603
(clamping screws outside) (clamping screws inside)
RIGIFLEX®-HP

For continuously updated data please refer to our online catalogue at www.ktr.com 169
RADEX®-N NN, NANA 1 and NANA 2
Steel lamina couplings

Standard types

For legend of pictogram please refer to flapper on the cover

280

Components

Type NN Type NANA 1 Type NANA 2

RADEX®-N Types NN, NANA 1, NANA 2

Maximum finish bore Dimensions [mm]
Size
d1/d2 D DA l1/l2 LG1 E1 LG2 E2 LG3 E3
20 20 32 56 20 45 5 100 60 – –
25 25 40 68 25 56 6 110 60 – –
35 35 54 82 40 86 6 150 70 – –
38 38 58 94 45 98 8 170 80 – –
42 42 68 104 45 100 10 170 80 – –
50 50 78 126 55 121 11 206 96 – –
60 60 88 138 55 121 11 206 96 170 60
70 70 102 156 65 141 11 246 116 200 70
80 80 117 179 75 164 14 286 136 233 83
85 85 123 191 80 175 15 300 140 246 86
90 90 132 210 80 175 15 300 140 251 91
105 105 147 225 90 200 20 340 160 281 101
115 115 163 265 100 223 23 370 170 309 109
135 135 184 305 135 297 27 520 250 – –
136 135 180 300 135 293 23
156 150 195 325 150 327 27
166 165 225 350 165 361 31
186 180 250 380 185 401 31
206 200 275 420 200 437 37
246 240 320 500 240 524 44
286 280 383 567 280 612 52
336 330 445 660 330 718 58 acc. to customer’s request
138 135 180 300 135 293 23
158 150 195 325 150 327 27
168 165 225 350 165 361 31
188 180 250 380 185 401 31
208 200 275 420 200 437 37
248 240 320 500 240 524 44
288 280 383 567 280 612 52
338 330 445 660 330 718 58

RADEX®-N 60 NANA 1 Ø50 Ø60

Ordering
example: Coupling size Type Finish bore d1 Finish bore d2

170 For continuously updated data please refer to our online catalogue at www.ktr.com
RADEX®-N NENA 1, NENA 2, NENE 1 and NNZ
Steel lamina couplings

Standard types

RADEX®-N
For legend of pictogram please refer to flapper on the cover

280

Components

RIGIFLEX®-N
Type NENA 1 Type NENE 1

Type NNZ Type NENA 2

RADEX®-N Types NENA 1, NENE 1, NENA 2, NNZ

Maximum finish bore Dimensions [mm]
Size
d1/d2 d3/d4 D D1 DA l1/l2 LG4 E4 LG5 E5 LG6 E6 LG9 E9
20 20 – 32 – 56 20 – – – – – – 58 18
25 25 – 40 – 68 25 – – – – – – 70 20
35 35 – 54 – 82 40 – – – – – – 102 22
38 38 – 58 – 94 45 – – – – – – 118 28
RIGIFLEX®-HP

42 42 – 68 – 104 45 – – – – – – 124 34
50 50 – 78 – 126 55 – – – – – – 144 34
60 60 55 88 77 138 55 160 50 114 4. 124 14 144 34
70 70 65 102 90 156 65 190 60 134 4. 144 14 166 36
80 80 75 117 104 179 75 220 70 154 4. 167 17 – –
85 85 80 123 112 191 80 232 72 164 4. 178 18 – –
90 90 85 132 119 210 80 233 73 166 6 184 24 – –
105 105 90 147 128 225 90 263 83 186 6 204 24 – –
115 115 100 163 145 265 100 288 88 206 6 227 27 – –

RADEX®-N 60 NENA 1 Ø50 Ø60

Ordering
example: Coupling size Type Finish bore d1 Finish bore d2

For continuously updated data please refer to our online catalogue at www.ktr.com 171
RADEX®-N NANA 4 and NNW
Steel lamina couplings

Customized types

For legend of pictogram please refer to flapper on the cover

280

Components

Type NANA 4 Type NNW

RADEX®-N Types NANA 4, NNZ and NNW

Maximum finish bore Dimensions [mm]
Size
d1/d2 D DA l1/l2 LG7 E7 LG8 E8
20 20 32 56 20
25 25 40 68 25
35 35 54 82 40
38 38 58 94 45
42 42 68 104 45
50 50 78 126 55
Intermediate shaft dimension according to customer’s specification

Intermediate shaft dimension according to customer’s specification

60 60 88 138 55
70 70 102 156 65
80 80 117 179 75
85 85 123 191 80
90 90 132 210 80
105 105 147 225 90
115 115 163 265 100
LG7 = E7 + l1 + l2

LG8 = E8 + l1 + l2

135 135 184 305 135

136 135 180 300 135
156 150 195 325 150
166 165 225 350 165
186 180 250 380 185
206 200 275 420 200
246 240 320 500 240
286 280 383 567 280
336 330 445 660 300
138 135 180 300 135
158 150 195 325 150
168 165 225 350 165
188 180 250 380 185
208 200 275 420 200
248 240 320 500 240
288 280 383 567 280
338 330 445 660 300

RADEX®-N 60 NANA 4 Ø50 Ø60 2500

Ordering
example: Coupling size Type Finish bore d1 Finish bore d2 Shaft distance
dimension

172 For continuously updated data please refer to our online catalogue at www.ktr.com
RADEX®-N Composite
Steel lamina couplings

Corrosion-resistant type for big shaft distance dimensions

RADEX®-N
For legend of pictogram please refer to flapper on the cover

80

Components

RIGIFLEX®-N
RADEX®-N Type NANA 4 CFK
Torque 1) [Nm] Dimensions [mm]
Size Composite Max. DBSE2)
TKN TK max DA d1/d2 max. D l1/l2 E1 DBSE Ltptal
tube DR with 1500 rpm
70 800 1600 149 70 102 65 11 95 3500
customer’s
specifica-

l1 + l2 +
acc. to

DBSE

85 1800 3600 184 85 123 80 15 117 3900

tions

90 2500 5000 200 90 135 80 15 128 4100

115 4500 9000 253 115 163 100 23 160 4600

1)
For selection of coupling see page 14 et seqq.
2)
For higher speeds or bigger shaft distance dimensions please consult with KTR’s engineering department (+49 5971 798-484). The above-mentioned characteristic figures (e. g. max. DBSE)
can be varied by Composite tubes optimized for the application, if necessary.

Particularly the steel lamina couplings are well suited for applications with especially large distance dimensions between the drive and
the driven side (e. g. cooling towers, ventilators etc.) due to their design. In order to be able to realize high speeds with large distance
dimensions, RADEX®-N couplings with intermediate shafts made of glass fiber or carbon fiber reinforced nylon (GRP or CFRP) are used,
if necessary.
RIGIFLEX®-HP

RADEX®-N 85 NANA 4 CFK Ø60 Ø70 3000

Ordering
example: Coupling size Type Finish bore d1 Finish bore d2 Shaft distance
dimension

For continuously updated data please refer to our online catalogue at www.ktr.com 173
RADEX®-N NANA 3
Steel lamina couplings

Pump drives according to API 610

For legend of pictogram please refer to flapper on the cover

280
610

RADEX®-N Type NANA 3

Max. finish bore Dimensions [mm] Perm. displacements
Size Axial
d D DA EStandard 1) l1/l2 Angle [°] each lamina
[mm]
42 42 68 104 100 45 1,0 2,8
50 50 78 126 140/180 55 1,0 3,2
60 60 88 138 100/140/180/250 55 1,0 2,0
70 70 102 156 100/140/180 65 1,0 2,2
80 80 117 179 100/140/180/250 75 1,0 2,6
85 85 123 191 100/140/180/250 80 1,0 2,3
90 90 132 210 140/180/250 80 1,0 2,0
105 105 147 225 250 90 1,0 2,4
115 115 163 265 250 100 1,0 2,8
135 135 184 305 250 135 1,0 3,5
136 135 180 300 135 0,7 3,7
156 150 195 325 150 0,7 4,2
166 165 225 350 165 0,7 4,5
186 180 250 380 185 0,7 4,8
206 200 275 420 200 0,7 5,2
246 240 320 500 240 0,7 6,0
286 280 383 567 280 0,7 6,7
acc. to customer’s
336 330 445 660 specifications 330 0,7 7,5
138 135 180 300 135 0,5 2,6
158 150 195 325 150 0,5 2,8
168 165 225 350 165 0,5 3,0
188 180 250 380 185 0,5 3,2
208 200 275 420 200 0,5 3,5
248 240 320 500 240 0,5 4,0
288 280 383 567 280 0,5 4,5
338 330 445 660 330 0,5 5,0
1)
Other distance dimensions E available on request.

RADEX®-N 60 NANA 3 Ø50 Ø60 140

Ordering
example: Coupling size Type Finish bore d1 Finish bore d2 Shaft distance
dimension

174 For continuously updated data please refer to our online catalogue at www.ktr.com
 RADEX®-N
Components

RIGIFLEX®-N
Detail “X”

Safety gear of the spacer:

The lamina sets have a sleeve in order to secure the spacer if
the lamina breaks.

RIGIFLEX®-HP

For continuously updated data please refer to our online catalogue at www.ktr.com 175
RIGIFLEX®-N
Steel lamina couplings

Technical data
The following lamina types are distinguished with RIGIFLEX®-N:

Size 35 – 65 Size 75 – 160 Size 166 – 406 Size 168 – 408

(lamina with 4 holes) (lamina with 6 holes) (lamina with 6 holes) (lamina with 8 holes)

Torques and displacements

Torques [Nm] Perm. displacements
Size Lamina type Angular dis- Axial displace- Radial ± Kr [mm]
TKN TK max. TKW placement ment
± Kw 1) [°] ± Ka [mm] E=100 E=140 E=180 E=200 E=250
35 130 260 65 0,7 1,2 0,90 1,40 – – –
50 lam. w. 4 holes 270 540 135 0,7 1,4 0,77 1,26 – – –
65 550 1100 275 0,7 1,5 0,75 1,23 1,72 – –
75 1100 2200 550 0,7 1,8 0,73 1,22 1,71 – –
85 1900 3800 950 0,7 2,1 – 1,14 1,62 1,87 2,48
110 3500 7000 1750 0,7 2,4 – 1,05 1,54 1,78 2,39
120 5750 11500 2875 0,7 2,6 – 1,00 1,49 1,73 2,35
140 10500 21000 5250 0,7 3,3 – – – 1,55 2,16
160 16000 32000 8000 0,7 3,8 – – – – 1,99
166 lamina with 19000 38000 9500 0,7 3,7
196 l6 holes 22500 45000 11250 0,7 4,2
216 32000 64000 16000 0,7 4,5
256 52500 105000 26250 0,7 5,2
306 86000 172000 43000 0,7 6,0
346 135000 270000 67500 0,7 6,7
406 210000 420000 105000 0,7 7,5 Mounting dimension E as indicated by the customer
168 25000 50000 12500 0,5 2,6
198 30000 60000 15000 0,5 2,8
218 42500 85000 21500 0,5 3,0
258 lamina with 70000 140000 35000 0,5 3,5
308 8 holes 115000 230000 57500 0,5 4,0
348 180000 360000 90000 0,5 4,5
408 280000 560000 140000 0,5 5,0

1)
Angular displacement each lamina set

If axial, angular and radial shaft displacement arises in parallel please note the following table:

Permissible angular displacement

Size 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7
Permissible axial displacement
35 1,20 1,00 0,85 0,74 0,60 0,40 0,20 0,00
50 1,40 1,20 1,00 0,80 0,60 0,40 0,20 0,00
65 1,50 1,29 1,07 0,86 0,64 0,43 0,22 0,00
75 1,80 1,54 1,29 1,03 0,77 0,52 0,26 0,00
85 2,10 1,80 1,50 1,20 0,90 0,60 0,30 0,00
110 2,40 2,06 1,71 1,37 1,03 0,69 0,34 0,00
120 2,60 2,23 1,86 1,48 1,11 0,74 0,37 0,00
140 3,30 2,83 2,36 1,88 1,41 0,94 0,47 0,00
160 3,80 3,26 2,71 2,17 1,63 1,09 0,54 0,00
166 3,70 3,17 2,64 2,12 1,59 1,06 0,53 0,00
196 4,20 3,60 3,00 2,40 1,80 1,20 0,60 0,00
216 4,50 3,86 3,21 2,57 1,93 1,29 0,64 0,00
256 5,20 4,46 3,71 2,97 2,23 1,49 0,74 0,00
306 6,00 5,14 4,29 3,43 2,57 1,72 0,86 0,00
346 6,75 5,79 4,82 3,86 2,89 1,93 0,96 0,00
406 7,50 6,43 5,36 4,28 3,21 2,14 1,07 0,00
168 2,60 2,08 1,56 1,04 0,52 0,00 – –
198 2,80 2,24 1,68 1,12 0,56 0,00 – –
218 3,00 2,40 1,80 1,20 0,60 0,00 – –
258 3,50 2,80 2,10 1,40 0,70 0,00 – –
308 4,00 3,20 2,40 1,60 0,80 0,00 – –
348 4,50 3,60 2,70 1,80 0,90 0,00 – –
408 5,00 4,00 3,00 2,00 1,00 0,00 – –

176 For continuously updated data please refer to our online catalogue at www.ktr.com
RIGIFLEX®-N
Steel lamina couplings

Technical data
Permissible speeds and stiffness

RADEX®-N
Max. speed Each lamina set ct [Nm/rad] for complete coupling with mounting length E
Size
[rpm] cw [Nm/rad] ct x 106 [Nm/rad] E=100 E=140 E=180 E=200 E=250
35 23000 170 0,056 65020 56700 – – –
50 18000 490 0,27 73953 63990 – – –
65 13600 260 0,5 146022 129938 117046 – –
75 12400 1000 0,67 306145 278381 255234 – –
85 11000 1500 0,9 – 406641 369429 353265 318433
110 9000 1500 1,5 – 664284 637587 625028 595693
120 8000 3000 2,0 – 1798018 1637553 1567602 1416348
140 6400 10000 3,5 – – – 2363340 2226630
160 5600 10350 6,9 – – – – 2654894
166 5600 26800 13,0
196 5200 35800 17,0
216 4600 41500 19,0
256 3900 65000 31,0
306 3300 112000 55,0
346 2900 205000 79,0
406 2500 276000 125,0 Mounting dimension E as indicated by the customer
168 5600 44300 20,0
198 5200 82200 26,0
218 4600 90000 30,0
258 3900 138000 49,0
308 3300 234000 83,0
348 2900 416000 125,0
408 2500 562000 200,0

cw = angular stiffness
ct = torsion spring stiffness

Weights and mass moments of inertia

Hub (max. bore) Spacer complete [kg] Spacer complete [x10³ kgm2]

RIGIFLEX®-N
Size
[kg] [kgm2] E=100 E=140 E=180 E=200 E=250 E=100 E=140 E=180 E=200 E=250
35 0,60 0,0007 1,030 1,120 – – – 0,00040 0,00050 – – –
50 0,92 0,001019 2,262 2,442 – – – 0,00256 0,00263 – – –
65 2,7 0,00541 3,922 4,183 4,445 – – 0,00810 0,00830 0,00828 – –
75 2,4 0,00566 4,482 4,842 5,202 – – 0,01143 0,01191 0,01239 – –
85 3,7 0,01135 – 7,154 7,548 7,746 8,239 – 0,02364 0,02427 0,02459 0,02538
110 6,7 0,03222 – 12,492 13,478 13,972 15,205 – 0,06291 0,06540 0,06665 0,06976
120 9,2 0,05238 – – 17,324 17,842 19,137 – – 0,10314 0,10458 0,10818
140 18,2 0,15175 – – – 32,530 34,325 – – – 0,31901 0,32845
160 29,9 0,33890 – – – – 52,458 – – – – 0,68640
166 28,0 0,32
196 37,0 0,554
216 50,0 0,85
256 95,0 2,35
306 138,0 4,55
346 215,0 9,75
406 310,0 18,95 Mounting dimension E as indicated by the customer
168 30,0 0,33
198 40,0 0,56
218 52,0 0,88
258 99,0 2,43
308 142,0 4,78
348 222,0 9,83
408 325,0 19,22
RIGIFLEX®-HP

For continuously updated data please refer to our online catalogue at www.ktr.com 177
RIGIFLEX®-N
Steel lamina coupling

Standard type A

For legend of pictogram please refer to flapper on the cover

280
610 671

Components

Size 35 Size 50 - 408

RIGIFLEX®-N Type A
Torques [Nm] Max. finish bore Dimensions [mm] Screws DIN EN ISO 4762
Size
TKN TK max. TKW d1/d2 D DA l1/l2 l3 G t1 t2 E1 E 1) Mxl TA [Nm]
35 130 260 65 50 – 75 38,5 8,5 M6 15 – 6 100 140 – – – M4x45 4,1
50 270 540 135 50 70 95 50 12 M6 10 – 9 100 140 – – – M6x22 14
65 550 1100 275 65 100 126 63 12 M8 20 – 11 100 140 180 – – M6x25 14
75 1100 2200 550 75 105 138 62,5 12 M8 20 – 11 100 140 180 – – M8x30 35
85 1900 3800 950 85 120 156 72,5 15 M10 20 – 12 – 140 180 200 250 M8x30 35
110 3500 7000 1750 110 152 191 87 18 M10 25 – 12 – 140 180 200 250 M10x35 69
120 5750 11500 2875 120 165 213 102 20 M12 25 – 12 – – 180 200 250 M12x40 120
140 10500 21000 5250 140 200 265 126 25 M12 30 – 15 – – – 200 250 M16x50 295
160 16000 32000 8000 160 230 305 145 31 M12 30 – 15 – – – – 250 M16x55 295
166 19000 32000 9500 160 230 305 155 31 M16 30 70 17 M20x50 560
196 22500 45000 11250 190 260 330 185 32 M16 40 90 24 M20x50 560
216 32000 64000 16000 210 285 370 205 32 M20 50 110 26 M20x65 560
256 52500 105000 26250 250 350 440 245 38 M20 70 130 31 M24x80 970
306 86000 172000 43000 300 400 515 295 43 M24 70 130 36 M27x100 1450
346 135000 270000 67500 340 460 590 335 55 M24 95 175 45 M30x110 1950
406 210000 420000 105000 400 530 675 395 58,5 M24 95 175 50 acc. to customer’s specifications M36x130 3300
168 25000 50000 12500 160 230 305 155 31 M16 30 70 17 M20x50 560
198 30000 60000 15000 190 260 330 185 32 M16 40 90 24 M20x50 560
218 42500 85000 21500 210 285 370 205 32 M20 50 110 26 M20x65 560
258 70000 140000 35000 250 350 440 245 38 M20 70 130 31 M24x80 970
308 115000 230000 57500 300 400 515 295 43 M24 70 130 36 M27x100 1450
348 180000 360000 90000 340 460 590 335 55 M24 95 175 45 M30x110 1950
408 280000 560000 140000 400 530 675 395 58,5 M24 95 175 50 M36x130 3300

Other shaft distance dimensions available on request.

1)

For selection of coupling see page 14 et seqq. Mounting instructions No. 47410 available at www.ktr.com.

RIGIFLEX®-N 120 A Ø 100 Ø 120 200

Ordering
example: Shaft distance
Coupling size Type Bore d1 Bore d2
dimension E

178 For continuously updated data please refer to our online catalogue at www.ktr.com
RIGIFLEX®-HP C
High Performance - steel lamina couplings

Flange connection

RADEX®-N
NEW

For legend of pictogram please refer to flapper on the cover

280
671

Components

RIGIFLEX®-N
RIGIFLEX®-HP Type C
Maximum
Torques [Nm] Dimensions [mm]
Size finish bore
TKN TK max. d1/d2 D DA Dz DR E1 E Emin CG1/CG22) l1/l2 l3/l4 l5/l6
158 20000 26000 85 119 220 195 135 17 335 46 85 189 130
acc. to customer’s specifi-

168 30000 39000 100 139 255 220 155 23 395 55 100 229 155
188 38000 49400 105 147 265 235 165 23 375 55 105 229 155
208 50000 65000 120 168 298 245 186 23 350 57 120 229 155
cations

228 59000 76700 125 178 315 270 199 33 425 65 125 265 175
248 72000 93600 140 196 335 300 217 33 395 67 140 265 175
278 115000 149500 160 225 380 335 248 33 355 70 160 265 175
318 180000 234000 180 252 445 370 280 48 495 88 180 348 225
358 253000 328900 210 295 500 415 326 48 435 93 210 348 225
388 330000 429000 235 330 545 464 362 48 400 97 235 348 225

Technical data
Perm. Displacements Stiffness figures
Max. speed
Size Angular displ.1) Axial Radial displ.) Each lamina set Spacer Coupling complete2)
[rpm]
± KW [°] ± KA [mm] ± Kr [mm] ct [Nm/rad] ctR [Nm · mm/rad] ctE = 457,2 [Nm/rad]
158 17300 0,25 3,0 2,30 13 ,0 106 839 106 1,04 106
168 14900 0,25 3,0 2,32 18 ,0 106 1535 106 1,79 106
188 14400 0,25 3,3 2,37 28 ,0 106 1974 106 2,23 106
208 12800 0,25 3,8 2,50 35,0 106 2876 106 3,15 106
228 12100 0,25 4,0 2,44 39,5  106 4123 106 5,06  106
248 11400 0,25 4,2 2,58 60,0 106 5410 106 5,51 106
278 10000 0,25 4,5 2,75 80,0 106 8592 106 7,94 106
318 8500 0,25 5,2 2,70 105,0 106 14724 106 13,00 106
358 7600 0,25 6,0 2,96 155,0 106 26258 106 20,30 106
388 7000 0,25 6,5 3,18 225,0 106 37596 106 27,70 106
1)
Each lamina set 2) with E=457.2 mm and cylindrical maximum finish bore
Coupling) Spacer
RIGIFLEX®-HP

Size
m [kg] J [kgm²] mR [kg/mm] JR [kgm²/mm]
158 45 0,274 20,28 10-3 81 10-6
168 69 0,577 27,282 10-3 149 10-6
188 78 0,711 30,975 10-3 191 10-6
208 97 1,081 35,118 10-3 279 10-6
228 123 1,561 44,397 10-3 400 10-6
248 144 2,109 48,614 10-3 524 10-6
278 190 3,542 58,694 10-3 833 10-6
318 306 7,792 79,311 10-3 1427 10-6
358 405 12,869 104,041 10-3 2545 10-6
388 525 19,257 120,151 10-3 3644 10-6

ct total = 1 / ((1/ctE = 457,2) + ((E - 457,2 mm) / ctR))

mtotal = m + mR  (E - 457,2 mm)
Jtotal = J +JR  (E - 457,2 mm)

For continuously updated data please refer to our online catalogue at www.ktr.com 179
RIGIFLEX®-HP L
High Performance - steel lamina couplings

Type with flange hubs

NEW

280
671

Components

RIGIFLEX®-HP Type L
Maximum
Torques [Nm] Dimensions [mm]
Size finish bore
TKN TK max. d1/d2 D DA Dz DR E1 E Emin CG1/CG22) l1/l2 l3/l4 l5/l6
158 20000 26000 150 210 310 220 135 17 265 140 150 163,5 37,5
acc. to customer’s spec.

168 30000 39000 165 230 320 255 155 23 340 148 165 168,5 48,0
188 38000 49400 180 250 335 265 165 23 340 156 180 183,5 48,0
208 50000 65000 200 280 362 298 186 23 340 165 200 203,5 48,0
228 59000 76700 220 310 390 315 199 33 390 179 220 223,5 54,5
248 72000 93600 240 340 420 334 217 33 390 185 235 238,5 54,5
278 115000 149500 270 380 455 380 248 33 390 202 270 273,5 54,5
318 180000 234000 315 445 550 445 280 48 510 246 315 318,5 71,5
358 253000 328900 350 490 600 500 326 48 510 263 350 353,5 71,5
388 330000 429000 380 535 650 545 362 48 510 277 380 383,5 71,5

Technical data
Perm. displacements Stiffness figures
Max. speed
Size Angular displ.) Axial displ. Radial displ.) Each lamina set Spacer Coupling complete2)
[rpm]
± KW [°] ± KA [mm] ± Kr [mm] ct [Nm/rad] ctR [Nm · mm/rad] ctE = 457,2 [Nm/rad]
158 13800 0,25 3,0 1,56 13,0 106 839  106 1,70 106
168 12300 0,25 3,0 1,45 18,0 106 1535 106 3,00 106
188 11400 0,25 3,3 1,45 28,0 106 1974 106 4,08 106
208 10500 0,25 3,8 1,45 35,0 106 2876 106 5,61 106
228 9700 0,25 4,0 1,34 39,5 106 4123 106 7,77 106
248 9000 0,25 4,2 1,34 60,0 106 5410 106 10,70 106
278 8300 0,25 4,5 1,34 80,0 106 8592 106 15,60 106
318 6900 0,25 5,2 1,13 105,0 106 14724 106 26,90 106
358 6300 0,25 6,0 1,13 155,0 106 26258 106 41,20 106
388 5800 0,25 6,5 1,13 225,0 106 37596 106 61,30 106
1)
Each lamina set 2) with E=457.2 mm and cylindrical maximum finish bore
Coupling) Spacer
Size
m [kg] J [kgm²] mR [kg/mm] JR [kgm²/mm]
158 80 0,717 20,28 10-3 8110-6
168 115 1,327 27,282 10-3 149 10-6
188 135 1,759 30,975 10-3 191 10-6
208 175 2,771 35,118 10-3 279 10-6
228 235 4,525 44,397 10-3 400 10-6
248 285 6,417 48,614 10-3 524 10-6
278 375 10,381 58,694 10-3 833 10-6
318 642 24,810 79,311 10-3 1427 10-6
358 812 38,404 104,041 10-3 2545 10-6
388 1016 57,062 120,151 10-3 3644 10-6

RIGIFLEX®-HP 188 L Ø 160 Ø 180 457,2

Ordering
example: Shaft distance
Coupling size Type Bore d1 Bore d2
dimension E

180 For continuously updated data please refer to our online catalogue at www.ktr.com
RIGIFLEX®-HP
High Performance - steel lamina couplings

Technical data of RIGIFLEX®-HP

RADEX®-N
Balancing:
Usually RIGIFLEX®-HP - couplings are balanced according to the balancing methods recommended by API 671. The usual
methods are as follows:

zz Balancing of individual components

zz Summation balancing for verifying the balancing of individual components. It has to be made sure that adjustments may be performed
on individual components only.
zz Summation balancing with amendment of the balancing quality on the complete coupling.
zz It goes without saying that different balancing methods as defined by the customer are possible.

Axial natural frequency:

With the coupling selection the axial natural frequency has to be reviewed (critical speed). According to API 671 the critical
speed should be +_ 10 % beyond one time and two times the operating speed of the drive.

Screwing during transport and mounting:

With balancing, transporting and mounting of the coupling the lamina sets are firmly clamped axially via transport screws and
distance washers (to protect the lamina sets from damaging). Please note: Before start-up of the coupling it is absolutely
necessary to remove the screwings!

Axial pre-stress of lamina sets:

If modifications of the shaft distance dimension (e. g. caused by thermal expansion) have to be expected, the lamina sets

RIGIFLEX®-N
can be axially prestressed. As a result the coupling operates in neutral position (zero position) of the lamina sets with normal
operation.

Spacer disks for couplings with taper bores:

With the use of taper shafts the shaft distance dimension may lightly vary due to displacement.
To compensate for spacer disks are added to the coupling on request. The disks are mounted on site, if necessary.

Shaft-hub-connections:
Usually RIGIFLEX®-HP is supplied with taper bores for an oil press fit. As an alternative feather key connections, flange con-
nections or mechanical clamping connections, e. g. via KTR CLAMPEX® clamping sets, are available.

Delivery condition:
Depending on the customer’s request, the RIGIFLEX®-HP  couplings can be delivered either fully assembled or as individual
assemblies. The lamina sets are basically assembled and may only be disassembled on consultation with the manufacturer.

Mounting instructions:
See: www.ktr.com
RIGIFLEX®-HP

For continuously updated data please refer to our online catalogue at www.ktr.com 181
182
Flange couplings

Types and operating description 184

BoWex® FLE-PA
BoWex® FLE-PA 186
BoWex® FLE-PAC 188
Selection according to SAE standard 190
Mounting dimensions according to SAE standard 191
Programme of special flanges,
deviations from SAE standard 192
Flange couplings in KUBOTA engines 194
Flange couplings in Perkins engines 195
Flange couplings in DEUTZ engines 196

BoWex-ELASTIC®
Technical data and displacements 198
Type HE1 and HE2 199
Type HE3 and HE4 200
Type HE-ZS and HEW 202
Type HEG 204

MONOLASTIC®
Type with 3 holes 206
Type SAE 207
Examples of application 208

BoWex® FLE-PA BoWex® FLE-PAC BoWex® ELASTIC® MONOLASTIC®

183
Flange couplings
Types and operating description

Properties of flange couplings

Product BoWex® FLE-PA/-PAC BoWex-ELASTIC® MONOLASTIC®

Type Torsionally rigid flange coupling Highly flexible flange coupling Flexible flange coupling
Properties
Torsionally rigid 
Torsionally flexible  
Highly flexible 
Damping vibrations  
Maintenance-free   
Axial plug-in   
Special features/applications
Variant diversity very high very high high
Type 3/4 hole, SAE standard, special
Flange dimension SAE standard and special dimensions SAE standard and special dimensions
dimensions
Internal spline see standard programme of BoWex® hubs see standard programme of BoWex® hubs for SAE or DIN pump shafts
generators, splitterboxes, water pumps,
hydrostatic drives of construction ma- hydrostatic drives of construction ma-
Applications piston compressors, agricultural machines,
chines, agricultural machines, … chines, agricultural machines, …
gensets, mill drives, separator drives, …
Performance data
Max. rated torque TKN [Nm] 5.300 39.000 1.500
Max. speed n [rpm] 6.000 6.200 6.000
Flange (standard and special)
fibre-glass reinforced Polyamide (PA)
Material combination of polyamide with carbon Natural rubber Natural rubber
fibre share and steel flange (PAC)
Elastomer "various kinds of hardness for vibration
torsionally rigid 65, 70 Shore A
hardness adaptation of drives"
Flange (Standard)
- 25 / + 130 (PA)
Temperature range [°C] min. / max. - 40/+ 90 - 40/+ 90
- 25 / + 130 (PAC)
Engine power [kW]
Max. 800 2.500 250

 ≈ Standard
 ≈ On request
* ≈ Depending on size

184 For continuously updated data please refer to our online catalogue at www.ktr.com
Flange couplings
Types and operating description

Product finder of flange couplings

BoWex® FLE-PA/-PAC
Product BoWex® FLE-PA/-PAC BoWex-ELASTIC® MONOLASTIC®
Type Torsionally rigid flange coupling Highly flexible flange coupling Flexible flange coupling
Geometries
Design extremely short short short
Max. radial displacement 0,4 mm – 1 mm
Shaft diameter min. / max. [mm] 20 / 125 21 / 180 20/60
Types (extract)
Intermediate shaft types
– HE-ZS –
» bridging larger shaft distances
Shaft-to-shaft connection HEW 1 and 2, HEW-ZS –
Flange-to-shaft connection standard HE 1, 2, 3, and 4, HE-ZS standard
For cardan shafts
– HEG 1 and 2 –
» Intermediate couplings for I. C.-engines
Combination with pump mounting flange   
Certifications/type examinations

ATEX 

Bureau Vertias  

BoWex-ELASTIC®
DNV/GL 

GOST R/ GOST TR   

 ≈ Standard

Please note: Pump mounting flanges

For connecting hydraulic pumps to the diesel engine KTR supplies mounting flanges sizes SAE 6
to SAE 1. These flanges are made of steel with hydraulic connections in accordance with SAE-A,
-B, -C, -D and -E both as type with 2 and 4 holes.
Pump connection housings made of EN-GJL-250 (GG 25) to be mounted directly to the back
plate of the engine. MONOLASTIC®

For continuously updated data please refer to our online catalogue at www.ktr.com 185
BoWex® FLE-PA
Torsionally rigid flange couplings

Axial plug-in, maintenance-free, torsionally rigid

For legend of pictogram please refer to flapper on the cover

130

BoWex® FLE-PA – Dimensions/nominal dimension to SAE

Finish bore Special Max. axial
Pilot Dimensions [mm] Nominal dimension to SAE (D3)
Size d length displacement
bore
min. max. D D1 l1 l3 l7 l8 l10 l11 l1 max. 6 ½" 7 ½" 8" 10" 11 ½" 14" [mm]
48 - 20 48 68 100 50 41 50 20 13 48 bis 60     ±2
T 48 13 20 48 68 100 50 38 45 20 13 46 -     ±1
T 55 17 20 55 85 115 50 37 48 24 13 48 -     ±2
65 / T 65 21 30 65 96 132 55 45 54 27 21 51 bis 70    ±2
T 70 26 30 70 100 153 60 48 56 30 21 57 -  ±2
80 / T 80 31 35 80 124 170 90 78 87 30 21 87 -   ±2
100 / T 100 38 40 100 152 265 110 78 108 35 21 110 -   ±2
125 / T 125 45 50 125 192 250 140 37 133 50 28 97 -   ±2

Technical data of BoWex® FLE-PA – Torques/Weights/Mass moments of inertia/Torsion spring stiffness

Weight / Dynamic torsion spring stiffness with
Torque TK [Nm] Hub with FLE-PA flanges according to SAE
Mass + 60 °C / ψ = 0.4 [Nm/rad]
Size max.
moment
TKN TK max. TKW bore Ø 6 ½" 7 ½" 8" 10" 11 ½" 14" 0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN
of inertia J
[kg] 0,79 0,32 0,43 0,51 0,64
48 240 600 120 – – 35 x 103 75 x 103 105 x 103 125 x 103
[kgm2] 0,0007 0,0021 0,0035 0,0049 0,0085
[kg] 0,79 0,32 0,43 0,51 0,64
T 48 300 750 150 – – 40 x 103 86 x 103 120 x 103 143 x 103
[kgm2] 0,0007 0,0021 0,0035 0,0049 0,0085
[kg] 1,12 0,34 0,62 0,45 0,646
T 55 450 1125 225 – – 90 x 103 140 x 103 170 x 103 195 x 103
[kgm2] 0,0016 0,0022 0,0053 0,0044 0,0086
[kg] 2,30 0,63 0,64 0,89
65 650 1600 325 – – – 110 x 103 160 x 103 200 x 103 230 x 103
[kgm2] 0,0044 0,0064 0,0065 0,012
[kg] 2,40 0,63 0,64 0,89
T 65 800 2000 400 – – – 130 x 103 190 x 103 240 x 103 280 x 103
[kgm2] 0,0044 0,0064 0,0065 0,012
[kg] 2,60 0,941
T 70 1000 2500 500 – – – – – 230 x 103 345 x 103 440 x 103 517 x 103
[kgm2] 0,0059 0,0132
[kg] 5,20 1,05 1,12
80 1200 3000 600 – – – – 200 x 103 410 x 103 580 x 103 700 x 103
[kgm2] 0,0151 0,015 0,022
[kg] 5,20 1,05 1,12
T 80 1500 3750 750 – – – – 240 x 103 450 x 103 638 x 103 770 x 103
[kgm2] 0,0151 0,015 0,022
[kg] 9,37 1,16 8,45
100 2050 5150 1025 – – – – 500 x 103 700 x 103 856 x 103 950 x 103
[kgm2] 0,0401 0,021 0,234
[kg] 9,37 1,16 8,45
T 100 2500 6250 1250 – – – – 600 x 103 830 x 103 960 x 103 1070 x 103
[kgm2] 0,0401 0,021 0,234
[kg] 19,73 2,09 9,85
125 4250 10700 2125 – – – – 1280 x 103 1885 x 103 2280 x 103 2665 x 103
[kgm2] 0,1359 0,043 0,306
[kg] 19,73 2,09 9,85
T 125 5300 13250 2650 – – – – 1600 x 103 2250 x 103 2700 x 103 3200 x 103
[kgm2] 0,1359 0,043 0,306

186 For continuously updated data please refer to our online catalogue at www.ktr.com
 BoWex® FLE-PA/-PAC
Short mounting Long mounting

z = number
z = number

Flange dimensions
acc. to SAE J 620 [mm]

BoWex-ELASTIC®
Size D3 D2 z dL

6 ½" 215,9 200,02 6 9

7 ½" 241,3 222,25 8 9
8" 263,52 244,47 6 11
10" 314,32 295,27 8 11
11 ½" 352,42 333,37 8 11
14" 466,72 438,15 8 13

Example of installation

BoWex® FLE-PA
for diesel engines with SAE connection.
Axial fixing of hub by means of end plate
and screw.
MONOLASTIC®

For continuously updated data please refer to our online catalogue at www.ktr.com 187
BoWex® FLE-PAC
Torsionally rigid flange couplings

Axial plug-in, extremely short design, carbon-fibre reinforced material

For legend of pictogram please refer to flapper on the cover

130

BoWex® FLE-PAC – Dimensions/nominal dimension to SAE

Finish bore Max. axial dis-
Pilot Dimensions [mm] Special length Nominal dimension to SAE (D3)
Size d placement
bore l1 max.
min. max. D D1 l1 l3 l7 l8 l10 6 ½" 7 ½" 8" 10" 11 ½" 14" [mm]
48 / T 48 13 20 48 68 110 50 35 46 25 3 up to 60     ±3
65 / T 65 21 30 65 96 165 55 36 46 32 4 up to 70    ±3
80 / T 80 31 35 80 124 220 90 72 76 35 4 -    ±3
100 / T 100 38 40 100 152 280 110 85 102 47 5 -   ±3
125 / T 125 45 50 125 192 250 140 37 133 50 28 -   ±3

Technical data of BoWex® FLE-PAC – Torques/Weights/Mass moments of inertia/Torsion spring stiffness

Weight / Hub with Dynamic torsion spring stiffness with
Torque TK [Nm] Mass FLE-PAC flanges according to SAE
Size max. + 60 °C / ψ = 0.45 [Nm/rad]
moment bore Ø
TKN TK max. TKW of inertia J 6 /2"
1
7 /2"1
8" 10" 11 /2"
1
14" 0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN
[kg] 0,79 0,77 0,98 1,19 1,73
48 240 600 120 57 x 103 89 x 103 109 x 103 126 x 103
[kgm2] 0,0007 0,0049 0,0077 0,0109 0,0221
[kg] 0,79 0,77 0,98 1,19 1,73
T 48 300 750 150 74 x 103 115 x 103 141 x 103 164 x 103
[kgm2] 0,0007 0,0049 0,0077 0,0109 0,0221
[kg] 2,30 1,48 2,20 2,83
65 650 1600 325 164 x 103 286 x 103 365 x 103 411 x 103
[kgm2] 0,0044 0,0145 0,0294 0,0467
[kg] 2,40 1,48 2,20 2,83
T 65 800 2000 400 202 x 103 328 x 103 420 x 103 473 x 103
[kgm2] 0,004 0,0145 0,0294 0,0467
[kg] 5,20 2,27 2,90 5,20
80 1200 3000 600 378 x 103 620 x 103 790 x 103 985 x 103
[kgm2] 0,0151 0,0312 0,0485 0,1462
[kg] 5,20 2,27 2,90 5,20
T 80 1500 3750 750 430 x 103 700 x 103 900 x 103 1120 x 103
[kgm2] 0,0151 0,0312 0,0485 0,1462
[kg] 9,37 3,35 6,22
100 2050 5150 1025 600 x 103 810 x 103 1050 x 103 1280 x 103
[kgm2] 0,0401 0,0606 0,1828
[kg] 9,37 3,35 6,22
T 100 2500 6250 1250 700 x 103 900 x 103 1170 x 103 1400 x 103
[kgm2] 0,0401 0,0606 0,1828
[kg] 19,73 2,09 9,85
125 4250 10700 2125 1280 x 103 1885 x 103 2280 x 103 2665 x 103
[kgm2] 0,1359 0,043 0,306
[kg] 19,73 2,09 9,85
T 125 5300 13250 2650 1600 x 103 2250 x 103 2700 x 103 3200 x 103
[kgm2] 0,1359 0,043 0,306

188 For continuously updated data please refer to our online catalogue at www.ktr.com
 BoWex® FLE-PA/-PAC
Short mounting Long mounting
z = number

z = number

BoWex-ELASTIC®
Flange dimensions
acc. to SAE J 620 [mm]

Size D3 D2 z dL

6 ½" 215,9 200,02 6 9

7 ½" 241,3 222,25 8 9
8" 263,52 244,47 6 11
10" 314,32 295,27 8 11
11 ½" 352,42 333,37 8 11
14" 466,72 438,15 8 14

MONOLASTIC®

For continuously updated data please refer to our online catalogue at www.ktr.com 189
BoWex® FLE-PAC
Torsionally rigid flange coupling

Selection according to SAE standard

Determination of coupling

Determination of coupling size Table 1

Connection dimension of coupling Table 2

Hub design/Mounting length Table 3

SAE pump mounting flange

Flange size according to SAE 617 Table 4

Mounting flange of hydraulic pump Table 5

Short mounting of coupling (l3) Long mounting of coupling (l7)

z = No.

z = No.
z = number of holes

z = number of holes

holes
holes
holes
holes

Marking on PA flange Marking on PA flange

Spline hub Clamping hub

Determination of mounting length l3 or l7

SAE-Welle l3 / l7 = G + LF – LW + lS If axial fixing of the hub by means of an end plate and a
screw is not possible for a pump shaft with involute spline,
DIN-Welle l3 / l7 = G + LF – lX
we would recommend to use our clamping hub.

Mounting instructions:
Screw tightening torque Screw tightening torque
The flange can be fastened to the engine flywheel by means of
of FLE-PA flange to of spline clamping hubs
socket head cap screws according to DIN EN ISO 4762 quality flywheel DIN EN ISO 4762
8.8 or by hexagon head screws quality 8.8. We recommend screws
M8 25 Nm 42/48 M10 49 Nm
are loctited in position.
M10 49 Nm 65 M12 86 Nm
M12 86 Nm 80/100 M16 210 Nm

190 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex® FLE-PAC
Torsionally rigid flange couplings

Mounting dimensions according to SAE standard

BoWex® FLE-PA/-PAC
1. Selection of coupling for diesel engine 4. Housing dimensions according to SAE 617 [mm]
X X SAE size A B C Z TH
Diesel engine Flywheel to Pump mounting Driving
Coupling SAE-1 511,18 552 530,2 12 M10 /8"
3
power SAE flange shaft of
size SAE-2 447,68 489 466,7 12 M10 /8"
3
pump
kW HP G LF SAE-3 409,58 451 428,6 12 M10 /8"
3

6 1/2" 30,15 1,19" SAE-4 361,95 403 381,0 12 M10 /8"

3

Hub design SAE J 498 / DIN

bis bis 48 7 1/2" 30,15 1,19" SAE-5 314,33 356 333,4 8 M10 /8"
3

For dimensions to SAE

9,5 0,375"

see tables 3 and 4

30 kW 40 PS FLE-PA 8" 62 2,44"

See table 3
10" 54 2,12"
5. Mounting flange for hydraulic pump acc. to SAE [mm]

5480
8" 62 2,44"
bis bis 65 X SAE flange with 2 holes SAE flange with 4 holes
10" 54 2,12" 9,5 0,375" SAE size
90 kW 120 PS FLE-PA A1 K-2 M Z A1 S-4 R Z
11 1/2" 39,6 1,56" 12,7 0,5"
A 82,55 106,4 M10 2 82,55 104,6 M10 /8"
3
4
bis bis 80
11 1/2" 39,6 1,56" 12,7 0,5" B 101,6 146,0 M12 1
/2" 2 101,6 127,0 M12 /2"
1
4
180 kW 240 PS FLE-PA
C 127,0 181,0 M16 2 127,0 162,0 M12 /2"
1
4
D 152,4 228,6 M16 5
/8" 2 152,4 228,6 M16 /8"
5
4
2. Dimensions of coupling flange acc. to SAE J 620 [mm] E - - - - - 165,1 317,5 M20 /4"
3
4
X Size D3 D2 z=number dL
6 1/2" 215,90 200,02 6 9
7 1/2" 241,30 222,25 8 9
8" 263,52 244,47 6 11
10" 314,32 295,27 8 11
11 1/2" 352,42 333,37 8 11

3. Selection of coupling hub - determination of mounting length l3 or l7

Mounting lenght of coupling l3 or l7
clamping hub

Code to order
Spline hub
Specify

BoWex® Pump shaft to Dimensions of coupling hub Flange size Flange size Flange size Flange size
type

Spline

[mm] 6 1/2" and 7 1/2" 8" 10" 11 1/2" coupling hub

coupling SAE J 498 and
size DIN 5480 K L K L K L K L Specify coupling size
X l1 l2 lS l3 l7 l3 l7 l3 l7 l3 l7
42 SAE-16/32 DP x 42 - 33 33 42 P559101

BoWex-ELASTIC®
PI-S 3/4"
z=11
42 SAE-16/32 DP x 42 - - 33 42 P567101
PB-S 7/8"
z=13
42 SAE-16/32 DP x 42 - 27 33 42 P660201
PB-BS 1"
z=15
48 SAE-16/32 DP x 50 - 45 41 50 50 41 50 P663301
65 PA-S 1 3/8" x 50 - 48 54 45 54 41 P663301
z=21
65 SAE-12/24 DP x 55 - 44 54 45 54 41 P656201
PC-S 1 1/4"
z=14
65 SAE-16/32 DP x - 49 45 53 41 P664301
PD-S 1 1/2"
z=23
80 SAE-16/32 DP x 55 - - 44 33 P565402
PE-S 1 3/4"
z=27
42 x 42 - - 33 42 P000205
25 x 1,25 x 18
42 x 42 - - 33 42 P500202
DIN 5480

42 x 42 - - 33 42 P500203
30 x 2 x 14
48 x 50 - - 41 50 P000206
DIN 5480
48 x 50 - - 41 50 50 50 P500203
48 x 46 - - 37 46 P000303
35 x 2 x 16
65 x 55 - - 54 39 P000303
DIN 5480
65 x 60 - - 50 59 50 59 39 P500301
65 x 55 - - 54 39 P000304
40 x 2 x 18
65 x 55 - - 54 45 54 39 P500302
DIN 5480
MONOLASTIC®

65 x - 64 - 60 69 60 69 39 P000403
45 x 2 x 21
65 x 55 - - 54 45 54 39 P500401
DIN 5480

80 x 55 - - 42 37 P500405
50 x 2 x 24
DIN 5480

Ordering example: Coupling FLE-PA / FLE PAC SAE pump mounting flange
Please photocopy BoWex® 48 FLE-PA 7 1/2" P663301 SAE-4 B-2L
dimension sheet SAE connection Code of Pump mounting flange Pump flange to SAE 2 holes/4 holes
Coupling size
and mark the design of coupling coupling hub for engine housing standard metric fastening thread
required with a cross. Table 1 Table 2 Table 3 Table 4 Table 5

For continuously updated data please refer to our online catalogue at www.ktr.com 191
BoWex® FLE-PA
Torsionally rigid flange couplings

Special flange programme, deviations from the SAE standard

Fitting to:
Hatz
diesel engines

centering

centering

BoWex® 48 FLE-PA, Ø165 BoWex® 28 FLE-PA, Ø105 BoWex® 48 FLE-PA, Ø96

Coupling size
Hatz Hatz Hatz
2L/3L/4L41C 2M/3M/4M41 1.D81 / 1D90 Z788 / Z789 / Z790
Engine type
4.M42,4L42C

Fitting to:
VW
Mitsubishi
diesel engines
centering by means of center pins

centering by means of center pins

Coupling size BoWex® 48 FLE-PA, Ø279 BoWex® 48 FLE-PA, Ø252 BoWex® 48 FLE-PA BoWex® 48 FLE-PA, Ø130
VW VW Mitsubishi Mitsubishi
Engine type 028.B / M344 062.2 / 068.5 / 6 / A / D Ø338-32 Series L / Series K

Fitting to:
Perkins
Lombardini
diesel
engines
centering

Coupling size BoWex® 65 FLE-PA, Ø338 BoWex® 48 FLE-PA, Ø128 BoWex® 48 FLE-PA, Ø140
Perkins 1104C-44T Lombardini Lombardini
Engine type Flywheel No. D0014 FOCS series LDW

192 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex® FLE-PA
Torsionally rigid flange couplings

Special flange programme, deviations from the SAE standard

BoWex® FLE-PA/-PAC
Fitting to:
Perkins
Isuzu
Cummins
diesel
engines

centering
centering

centering
centering

Coupling size BoWex® 48 FLE-PA, BoWex® 65 FLE-PA, BoWex® 70 FLE-PA, BoWex® 80 FLE-PA,
Ø 155 Ø 178 Ø 200 Ø 220
Engine type 3 holes, Ø 125 3 holes, Ø 140 4 holes, Ø 165 4 holes, Ø 180

Fitting to:
Caterpillar

BoWex-ELASTIC®
Daimler
Cummins
John-Deere
diesel engines

Coupling size BoWex® T100 FLE-PA, 14” BoWex® T65 FLE-PA, Ø395 BoWex® 80 FLE-PA, 11 1/2” BoWex® 80 FLE-PA 11 1/2”
Caterpillar Daimler Cummins John Deere
Engine type C 10 / C 12 OM904 QSX/QSB

Fitting to
shaft motors:
Hatz
Honda
Briggs-Stratton
MONOLASTIC®

Yanmar
Kohler
Robin

Coupling size BoWex® M42 BoWex® shaft coupling type M28 and M32
Hatz 2G30 Housing connection acc. to SAE J609A
Engine type

For continuously updated data please refer to our online catalogue at www.ktr.com 193
BoWex® FLE-PA
Torsionally rigid flange couplings and
pump mounting flanges
Flange couplings and pump connection housings for KUBOTA engines
KUBOTA
Super MINI series

Z-400
Z-442-B
Z-482-B
D-600
D-662-B ho
D-902-B les les
ho

centering
V-800

BoWex® 48 FLE-PA Ø 150 / pump connection housings

KUBOTA
Super 3 series

D 1403/1703
flywheel
No. 190027991

V 1903/2203 ho
les s
flywheel hole centering

No. 190002369

V 2003-T

BoWex® 48 FLE-PA Ø 188 / pump connection housings

KUBOTA
Super 5 series

D 905
D 1005
D 1105
D 1105-T
V 1205
V 1305 hol
es les
V 1505 ho

MONOLASTIC® 28 Ø 124 / pump connection housings

194 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex® FLE-PA
Torsionally rigid flange couplings and
pump mounting flanges
Flange couplings and pump connection housings for Perkins engines

BoWex® FLE-PA/-PAC
ho s
les
hole

Perkins 403D - 10/11 Perkins 403D - 13/15

BoWex-ELASTIC®
ho
les s
hole

Perkins 404D - 20 Perkins 404D - 22

Other
selections
on request for
Yanmar
Mitsubishi
etc.
MONOLASTIC®

Mitsubishi SL Series Yanmar TMV-Series

For continuously updated data please refer to our online catalogue at www.ktr.com 195
BoWex® FLE-PA
Torsionally rigid flange couplings
and pump mounting flanges
Selection of DEUTZ engines FL/M 1011 and FL/M 2011, TCD/TD/D 2.9 L4, TDC/T 3.6 L

196 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex® FLE-PA
Torsionally rigid flange couplings
and pump mounting flanges
Selection of DEUTZ engines BFM 1012/1013/2012/2013/1015

BoWex® FLE-PA/-PAC
BoWex-ELASTIC®
MONOLASTIC®

For continuously updated data please refer to our online catalogue at www.ktr.com 197
BoWex-ELASTIC®
Highly flexible flange couplings

Technical data and displacements

Technical data
Torque [Nm] Perm. damping power Dynamic torsion Relative Radial spring
PKW [W] Perm. operating Resonance factor
Size Shore spring stiffness damping stiffness
bei 10 Hz speed nmax. [rpm] VR ≈ 2  π / ψ
TKN TK max. Cdyn. [Nm/rad] ψ Cr [N/mm]
TKW 60 °C 80 °C 90 °C
T40 Sh 130 390 39 550 0,6 10,5 142
T50 Sh 150 450 45 26 13 6,5 850 0,8 7,9 219
T65 Sh 180 540 54 2700 1,2 5,2 697
42 HE 6200
40 Sh* 130 390 39 550 0,6 10,5 142
50 Sh* 150 450 45 20 6,5 – 850 0,8 7,9 219
65 Sh* 180 540 54 2700 1,2 5,2 697
T40 Sh 200 600 60 850 0,6 10,5 176
T50 Sh 230 690 69 36 18 9 1300 0,8 7,9 269
T65 Sh 280 840 84 3500 1,2 5,2 724
48 HE 5600
40 Sh* 200 600 60 850 0,6 10,5 176
50 Sh* 230 690 69 27 9 – 1300 0,8 7,9 269
65 Sh* 280 840 84 3500 1,2 5,2 724
T40 Sh 350 1050 105 1600 0,6 10,5 209
T50 Sh 400 1200 120 60 30 15 2200 0,8 7,9 288
T65 Sh 500 1500 150 6000 1,2 5,2 784
65 HE 4500
40 Sh* 350 1050 105 1600 0,6 10,5 209
50 Sh* 400 1200 120 45 15 – 2200 0,8 7,9 288
65 Sh* 500 1500 150 6000 1,2 5,2 784
T40 Sh 430 1290 129 2350 0,6 10,5 259
T50 Sh 500 1500 150 68 34 17 3000 0,8 7,9 346
T65 Sh 620 1860 186 8500 1,2 5,2 975
G 65 HE 4300
40 Sh* 430 1290 129 2350 0,6 10,5 259
50 Sh* 500 1500 150 51 17 – 3000 0,8 7,9 346
65 Sh* 620 1860 186 8500 1,2 5,2 975
T40 Sh 600 1800 180 3650 0,6 10,5 240
GG65 HE T50 Sh 700 2100 210 76 38 19 4000 4800 0,8 7,9 324
T65 Sh 850 2550 255 13500 1,2 5,2 911
T40 Sh 750 2250 225 4500 0,6 10,5 351
T50 Sh 950 2850 285 120 60 30 6500 0,8 7,9 507
T65 Sh 1200 3600 360 18000 1,2 5,2 1404
80 HE 3600
40 Sh* 750 2250 225 4500 0,6 10,5 351
50 Sh* 950 2850 285 90 30 – 6500 0,8 7,9 507
65 Sh* 1200 3600 360 18000 1,2 5,2 1404
T40 Sh 1250 3750 375 7500 0,6 10,5 476
T50 Sh 1600 4800 480 180 90 45 12000 0,8 7,9 762
T65 Sh 2000 6000 600 32000 1,2 5,2 2031
G 80 HE 3000
40 Sh* 1250 3750 375 7500 0,6 10,5 476
50 Sh* 1600 4800 480 135 45 – 12000 0,8 7,9 762
65 Sh* 2000 6000 600 32000 1,2 5,2 2031
T40 Sh 1550 4650 465 9200 0,6 10,5 395
GG80 HE T50 Sh 2000 6000 600 196 98 49 3000 14200 0,8 7,9 635
T65 Sh 2500 7500 750 39600 1,2 5,2 1650
T40 Sh 2000 6000 600 12000 0,6 10,5 366
T50 Sh 2500 7500 750 212 106 53 19000 0,8 7,9 570
T65 Sh 3200 9600 960 48000 1,2 5,2 1200
100 HE 2700
40 Sh* 2000 6000 600 12000 0,6 10,5 366
50 Sh* 2500 7500 750 160 53 – 19000 0,8 7,9 570
65 Sh* 3200 9600 960 48000 1,2 5,2 1200
T40 Sh 3000 9000 900 19000 0,6 10,5 617
T50 Sh 4000 12000 1200 240 120 60 30000 0,8 7,9 974
T65 Sh 5000 15000 1500 75000 1,2 5,2 2434
125 HE 2300
40 Sh* 3000 9000 900 19000 0,6 10,5 617
50 Sh* 4000 12000 1200 180 60 – 30000 0,8 7,9 974
70 Sh* 5000 15000 1500 75000 1,2 5,2 2434
T40 Sh 4000 12000 1200 30000 0,6 10,5 560
T50 Sh 5200 16000 1600 268 134 67 44000 0,8 7,9 920
T65 Sh 6500 20000 2000 110000 1,2 5,2 1915
G 125 HE 2250
40 Sh* 4000 12000 1200 30000 0,6 10,5 560
50 Sh* 5200 16000 1600 200 67 – 44000 0,8 7,9 920
70 Sh* 6500 20000 2000 110000 1,2 5,2 1915
T40 Sh 5500 16500 1650 1950 42000 0,6 10,5 714
150 HE T50 Sh 7000 21000 2100 300 150 75 2050 67000 0,8 7,9 1200
T65 Sh 9000 27000 2700 2200 166000 1,2 5,2 2500
T40 Sh 7000 21000 2100 1900 60000 0,6 10,5 1485
G 150 HE T50 Sh 9200 27600 2760 320 160 80 2000 95000 0,8 7,9 2372
T65 Sh 11500 34500 3450 2100 236000 1,2 5,2 5874
T40 Sh 9500 28500 2850 1700 85000 0,6 10,5 1720
200 HE T50 Sh 12500 37500 3750 392 196 98 1800 136000 0,8 7,9 2740
T65 Sh 16000 48000 4800 1900 335000 1,2 5,2 6769
T40 Sh 19000 57000 5700 1700 170000 0,6 10,5 3440
200D HE T50 Sh 25000 75000 7500 784 392 196 1800 272000 0,8 7,9 5480
T65 Sh 32000 96000 9600 1900 670000 1,2 5,2 13538
T40 Sh 11500 34500 3450 1600 105000 0,6 10,5 1952
G 200 HE T50 Sh 15000 45000 4500 428 214 107 1700 167000 0,8 7,9 3114
T65 Sh 19500 58500 5850 1800 412000 1,2 5,2 7708
T40 Sh 23000 69000 6900 1600 210000 0,6 10,5 3904
G 200D HE T50 Sh 30000 90000 9000 856 428 214 1700 334000 0,8 7,9 6228
T65 Sh 39000 117000 11700 1800 824000 1,2 5,2 15416

T = Temperature stable rubber compound. The technical data mentioned apply for an ambient temperature of T = 60 °C.
* Expiring as a standard

198 For continuously updated data please refer to our online catalogue at www.ktr.com
BoWex-ELASTIC® HE1 und HE2
Highly flexible flange couplings

Axial plug-in, available in different kinds of hardness

BoWex® FLE-PA/-PAC
For legend of pictogram please refer to flapper on the cover

90

Components

BoWex-ELASTIC®
z = number
z = number

Flange dimensions
acc. to SAE J 620 [mm]
Size DA D3 z d1
6 ½" 215,90 200,02 6 9
7 ½" 241,30 222,25 8 9
8" 263,52 244,47 6 11
10" 314,32 295,27 8 11
11 ½" 352,42 333,37 8 11
Type HE1 Type HE2 14" 466,72 438,15 8 13

BoWex-ELASTIC® Type HE1 and HE2

Mass moment
Bore d Flange connection Weight with of inertia with pilot bored
Dimensions [mm]
[mm] according to SAE - J 620 pilot bored
Size coupling
coupling
Pilot [kg] JA JL
max. 6 ½" 7 ½" 8" 10" 11 ½" 14" l3 l2 D4 D5 D l1 LHE1 LHE2
bored [kgm2] [kgm2]
  2,7 0,0061 0,0014
42 HE - 42 4 45 146 180 65 42 70 50
 2,9 0,0083 0,0014
MONOLASTIC®

  2,9 0,0106 0,0019

48 HE - 48  4 45 164 198 68 50 78 50 3,1 0,0148 0,0019
 3,9 0,0298 0,0019
 6,4 0,0377 0,0064
65 HE 21 65 5 55 205 244 96 55 85 62
 7,2 0,0594 0,0064
 - - 126 74 10,9 0,0211 0,0283
80 HE 31 80 70 266 124 90
 6 316 132 80 13,0 0,0726 0,0283
 - - 136 84 12,5 0,0402 0,0428
G 80 HE 31 80 80 302 124 90
 6 356 142 90 17,3 0,2251 0,0428

BoWex-ELASTIC® 42 HE1 40 8 70 U
Ordering
example: Elastomer Flange Ø DA acc. to Mounting length Unbored or with
Coupling size Type
hardness SAE or special LHE finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 199
BoWex-ELASTIC® HE3 und HE4
Highly flexible flange couplings

Axial plug-in, available in different kinds of hardness

For legend of pictogram please refer to flapper on the cover

90

BoWex-ELASTIC® Type HE3 and HE4

Mass moment
Bore d Flange connection Weight with of inertia with pilot bored
Dimensions [mm]
[mm] according to SAE - J 620 pilot bored
Size coupling
coupling
Pilot JA JL
max. 6 ½" 7 ½" 8" 10" 11 ½" 14" 16" 18" 21“ 24“ l3 l2 D4 D l1 LHE3 LHE4 [kg]
bored [kgm2] [kgm2]
42 HE - 42   2 33 145 65 42 55 40 1,7 0,0057 0,0014
 1,8 0,0060 0,0020
48 HE - 48  2 37 163 68 50 68 42 2,0 0,0062 0,0020
 2,2 0,0065 0,0020
 5,3 0,0242 0,0076
G 65 HE 21 65 3 45 205 96 55 73 50
 5,7 0,0372 0,0076
 5,3 0,0251 0,0085
GG 65 HE 21 65  3 48 220 96 55 73 50 5,6 0,0273 0,0085
 5,9 0,034 0,0085
80 HE 31 80  11,4 0,0388 0,0305
G 80 HE 31 80  4 66 300 124 90 122 70 11,6 0,0702 0,0465
100 HE 38 100  4 80 350 152 110 150 82 24,1 0,1951 0,1019
 - 186 103 45,8 0,3013 0,2861
125 HE 45 125 92 416 192 140
 6 192 109 47,7 0,4123 0,2861
 48,4 0,4781 0,2916
G 125 HE 45 125 6 89 440 192 140 179 91
 50,5 0,6380 0,2916
 0,6918 0,5192
150 HE 44 160 6 140 470 225 150 205 160 66,7
 1,1410 0,5192
 0,754 0,651
G 150 HE 44 160 6 140 504 225 150 205 160 76
 1,246 0,651
 1,535 1,145
200 HE 46 180 6 149 568 250 175 240 160 100
 1,514 1,145
 16,75 2,98
200D HE 46 180 25 325 568 250 300 350 - 355
 22,89 2,98
 1,727 1,347
G200 HE 46 180 6 149 600 250 175 240 160 105
 2,106 1,347
 18,65 3,28
G200D HE 46 180 25 325 600 250 300 350 - 370
 25,12 3,28

BoWex-ELASTIC® 80 HE3 40 10 112 U

Ordering
example: Elastomer Flange Ø DA acc. to SAE or Mounting length Unbored or with
Coupling size Type
hardness special LHE finish bore

200 For continuously updated data please refer to our online catalogue at www.ktr.com
 BoWex® FLE-PA/-PAC
Type HE3 Type HE4 Type D
z= number

z= number

z= number

BoWex-ELASTIC®
Flange dimensions
acc. to SAE J 620 [mm]
Size DA D3 z d1
6 ½" 215,90 200,02 6 9
7 ½" 241,30 222,25 8 9
8" 263,52 244,47 6 11
10" 314,32 295,27 8 11
11 ½" 352,42 333,37 8 11
14" 466,72 438,15 8 13
16" 517,50 489,00 8 13
18" 571,50 542,90 6 17
21“ 673,10 641,35 12 17
24“ 733,42 692,15 12 21

Displacements
For other operating speeds or higher operating Radial displacement ΔKr Angular displacement Axial displacement
ΔKw ΔKa
temperatures the permissible radial displacement
is calculated as follows:

ΔKrperm. = ΔKr  St  1500 / nx

Displacements
125 HE/G 125 150 HE/G 150 200HE/G 200 HE
Size 42 HE 48 HE 65 HE/G 65 HE 80 HE/G 80 HE 100 HE
HE HE
MONOLASTIC®

T40 T50 T65 T40 T50 T65 T40 T50 T65 T40 T50 T65 T40 T50 T65 T40 T50 T70 T40 T50 T65 T40 T50 T65
Elastomer hardness [Shore A]
Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh Sh
Perm. radial displacement n=1500
1,1 1,0 0,5 1,2 1,1 0,5 1,6 1,5 0,7 1,8 1,7 0,8 2,2 2,0 1,0 2,5 2,3 1,1 2,8 2,5 1,3 3,0 2,7 1,5
rpm
ΔKr [mm]
max. 1)
3,6 3,3 1,5 3,8 3,5 1,7 5,1 4,7 2,2 5,7 5,3 2,4 6,5 6,0 3,0 7,5 6,9 3,3 8,0 7,5 4,0 8,5 8,0 4,5
n=1500
1,0 0,75 0,5 1,0 0,75 0,5 1,0 0,75 0,5 1,0 0,75 0,5 1,0 0,75 0,5 1,0 0,75 0,5 1,0 0,75 0,5 1,0 0,75 0,5
Perm. angular displacement rpm
ΔKw [°] n=3000
0,5 0,4 0,25 0,5 0,4 0,25 0,5 0,4 0,25 0,5 0,4 0,25 0,5 0,4 0,25 0,5 0,4 0,25
rpm
Perm. angular displacement
max. 1) 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5
ΔKw [mm]
Perm. axial displacement ΔKa [mm] ±2 ±2 ±2 ±2 ±3 ±3 ±5 ±5
1)
for short-term starting operation

Process of assembly, screw type with quality, tightening torques according to KTR assembly instructions (see www.ktr.com).

For continuously updated data please refer to our online catalogue at www.ktr.com 201
BoWex-ELASTIC® HE-ZS and HEW
Highly flexible flange couplings

With drop-out center part for pump drives, highly flexible shaft-to-shaft coupling

For legend of pictogram please refer to flapper on the cover

90

BoWex-ELASTIC® Type HE-ZS

Drop-out center part HE-ZS Mass moment of
Max. finish Flange connection to SAE-J 620 DA for HE-ZS Dimensions [mm] Weight with
LZ [mm] inertia [kgm2]
Size bore max. bore
d4 11 [kg]
6 ½" 7 ½" 8" 10" 14" 16" 18“ 21“ 24“ D1 D4 D5 D7 D8 l1 l2 l3 l6 100 120 140 180 250 JA JL
½"
 48 10   2,91) 0,0026 0,0033
   3,61) 0,0106 0,0033
48 28 160 164 200 78 45 40 37
 37 4   3,91) 0,0148 0,0033
   4,61) 0,0298 0,0033
   7,31) 0,0242 0,0129
G65 45 205 110 72 60 48 3 56
   8,92) 0,0372 0,0150
 11   13,72) 0,0211 0,0497
80 65 265 266 318 145 100 80 70 76
 6   15,92) 0,0726 0,0497
 11   14,62) 0,0402 0,0634
G80 65 300 302 358 145 100 80 80 76
 6   19,52) 0,2251 0,0634
100 95  350 202 148 110 80 4 106   29,82) 0,1951 0,1779
   41,72) 0,3013 0,3363
125 100 416 225 165 120 99 6 116
   43,62) 0,4123 0,3363
   45,62) 0,4781 0,3700
G125 120 440 225 165 120 95 6 116
   47,72) 0,6380 0,3700
  63,2 0,6918 0,6647
150 135 470 245 185 140 140 6 136
  67,9 1,1410 0,6647
  68,3 0,7540 0,7677
G150 135 504 245 185 140 140 6 136
  73,0 1,2460 0,7677
  98,7 1,5348 1,4109
200 150 568 270 205 160 149 6 156
  101,7 1,9138 1,4109
  103,5 1,7270 1,6401
G200 150 600 270 205 160 149 6 156
  106,6 2,1060 1,6401

1)
with Lz 120 2)
with Lz 100

BoWex-ELASTIC® Type HEW

Weight with Mass moment of
Max. finish bore Dimensions [mm]
Size max. bore inertia [kgm2]
d2 d3 D D2 zxM D4 D5 D6 l1 l2 l3 l4 l5 E E1 LHEW1 LHEW2 [kg] JA JL
42 48 50 68 162 6 M6 146 180 85 50 45 15 50 42 4 32 132 104 4,3 0,0121 0,0015
48 48 55 68 180 8 M6 164 200 92 50 45 17 55 45 4 32 137 109 5,5 0,0204 0,0019
65 65 75 96 224 8 M8 205 245 125 70 55 28 75 63 5 42 187 150 13,2 0,0752 0,0071
80 80 80 124 295,27 8 M10 266 318 130 90 70 17 80 70 5 45 215 160 19,7 0,1449 0,0285
G 80 85 95 124 333,4 8 M10 302 358 145 90 80 22 90 78 5 55 235 185 25,9 0,2748 0,0422
100 100 110 152 438,15 8 M12 350 478 158 110 80 14 111,5 113 26 57 278 207 48,5 0,8356 0,1050
125 125 125 192 438,15 8 M12 416 478 175 140 99 14 170 158 - 45 327 - 67,2 0,9498 0,2617
G125 125 125 192 489 8 M12 440 530 175 140 95 14 170 158 - 45 327 - 76,6 1,4492 0,3034
150 160 160 225 542,9 6 M16 470 585 225 150 100 18 150 145 - 70 380 - 110 2,7206 0,5303
G150 160 160 225 542,9 6 M16 504 585 225 150 108 18 150 145 - 70 380 - 113,4 2,7809 0,5861
200 180 200 250 641,35 12 M16 568 683 280 175 149 26 220 214 - 85 480 - 195 6,6418 1,1406
G200 180 200 250 641,35 12 M16 600 683 280 175 149 26 220 214 - 85 480 - 200 6,6099 1,3419

Other sizes available. Please consult with us.

202 For continuously updated data please refer to our online catalogue at www.ktr.com
 BoWex® FLE-PA/-PAC
Type HE-ZS
z= number

z= number

BoWex-ELASTIC®
Type HEW1
z= number

MONOLASTIC®

Type HEW2

For continuously updated data please refer to our online catalogue at www.ktr.com 203
BoWex-ELASTIC® HEG
Highly flexible flange couplings

Cardan shaft auxiliary coupling

For legend of pictogram please refer to flapper on the cover

90

BoWex-ELASTIC® Type HEG1 and Type HEG2

Flywheel connection Metric flange connection HEG1 MECHANICS cardan shaft connection HEG2 Mass moment
Dimensions [mm]
to SAE-J 620 dimensions [mm] dimensions [mm] Weight of inertia
Size
[kg] JA JL
8" 10" 11 ½" 14" 16" 58 65 75 90 100 120 150 180 l4 L 2 C 4 C 5 C 6 C 7 C 8,5 C 8 C L1 D4 l2 l3
[kgm2] [kgm2]
    7 0,03 0,006
48 8 58,5 163 43,5 8
    8 0,06 0,006
       12 0,07 0,02
G 65 8 66 71 205 48,0 10
       14 0,10 0,02
        23 21 0,11 0,06
80 10 88,5 104 265 68,5
        12 23 0,17 0,06
        23 26 0,18 0,09
G 80 10 96 110 302 74,0
        12 33 0,48 0,09
100      12 98   128 350 78,0 16 41 0,63 0,19
       18 56 0,74 0,42
125 12 111 135 416 96,0
       12 59 0,97 0,42

Flywheel connection
Metric flange connection HEG1 [mm] MECHANICS cardan shaft connection HEG 2 [mm]
to SAE-J 620 [mm]
Size DA D1 z1 d1 Size D2 l1 D3 z2 d2 Size D5 l5 l6 l7 l8 z3
8" 263,52 244,47 6 11 58 30 1,0 47,0 4 M5 2C 79,35 33,3 59,5 9,50 3,8 M8
65 35 1,0 52,0 4 M6 4C 107,92 36,5 87,3 9,50 3,8 M8
10" 314,32 295,27 8 11 75 42 1,5 62,0 6 M6
5C 115,06 42,9 88,9 14,26 5,1 M10
90 47 2,0 74,5 4 M8
11 ½" 352,42 333,37 8 11 6C 140,46 42,9 114,3 14,26 5,1 M10
100 57 2,0 84,0 6 M8
7C 148,39 49,2 117,5 15,85 6,0 M12
14" 466,72 438,15 8 14 120 75 2,0 101,5 8 M10
150 90 2,5 130,0 8 M12 8,5 C 165,08 71,4 123,8 15,85 6,0 M12
16" 517,50 489,00 8 14 180 110 2,5 155,5 8 M14 8C 206,32 49,2 174,6 15,85 6,0 M12

BoWex-ELASTIC® type HEG has a maintenance-free plain bearing compensating for the radial loads generated by the cardan shaft.
Moreover, the coupling has a friction disk which is axially prestressed by the elastomer part. The elastomer part is made of natural rubber
via vulcanizing.
The permanent friction provides the coupling with excellent damping properties reducing the high vibratory torques arising in the coupling
during the starting process and running through resonance considerably.

204 For continuously updated data please refer to our online catalogue at www.ktr.com
 BoWex® FLE-PA/-PAC
Type HEG1

BoWex-ELASTIC®
Type HEG2

MONOLASTIC®

For continuously updated data please refer to our online catalogue at www.ktr.com 205
MONOLASTIC®
One-piece, flexible flange couplings

Type with 3 holes (EP 0853203/U.S. Patent 6,117,017)

For legend of pictogram please refer to flapper on the cover

90
z= number

MONOLASTIC®
Elastomer hardness Torque [Nm] Dimensions [mm]
Size
[Shore A] TKN TK max. TKW d D D1 D2 z dL D3 l1 l2 l3 l4 l5
22 65 40 100 20 20 34 93 80 3 8,10 100 33 1,5 32 34 30
65 70 175 35
28 25 42 115 100 3 10,10 124 40 2 32 40 38
70 100 300 50
65 160 400 80
32 32 50 140 125 3 12,10 150 42 2 42 43 38
70 225 675 112
50-140 70 260 650 130 32 50 167 140 3 14,10 175 46 3 35 46 43
50-165 70 300 750 150 32 50 175 165 3 16,15 200 46 3 35 46 43
50-170 70 300 750 150 32 50 175 170 3 16,15 200 46 3 35 46 43
60-165 70 400 1000 200 48 68 191 165 3 16,15 205 50 3 40 55 46

Technical data
Perm. damping Perm. angular Mass moment of inertia [kgm2] Max. perm.
Cdyn. Max. displacement Radial spring
Elastomer hardness power with displacement with operating speed
Size with 60 °C with 2200 rpm stiffness Cr
[Shore A] 60 °C 2200 rpm JA JL nmax.
[Nm/rad] ΔKr [mm] [N/mm]
PKW [W] ΔKw [°] [rpm]
22 65 600 10 0,6 200 0,00017 0,00010 6000
65 900 0,6 300
28 15 0,00054 0,00033 6000
70 1300 0,5 400
65 1800 0,6 400
32 25 0,00120 0,00081 6000
70 2400 0,5 1 500
50-140 4200 35 0,5 1365 0,00210 0,00130 6000
50-165 70
5600 40 0,5 1550 0,00250 0,00130 6000
50-170
60-165 70 7800 40 0,5 1500 0,00599 0,00358 6000

206 For continuously updated data please refer to our online catalogue at www.ktr.com
MONOLASTIC®
One-piece, flexible flange couplings

Type SAE (EP 0853203/U.S. Patent 6,117,017)

BoWex® FLE-PA/-PAC
90

BoWex-ELASTIC®
z= number

Flange dimensions
acc. to SAE J 620 [mm]

Size D3 D2 z dL

6 ½" 215,9 200,02 6 9

7 ½" 241,3 222,25 8 9
8" 263,52 244,47 6 11
10" 314,32 295,27 8 11
11 ½" 352,42 333,37 8 11

MONOLASTIC®
Elastomer hardness Torque [Nm] Dimensions [mm] MONOLASTIC® flanges according to SAE
Size
[Shore A] TKN TK max. TKW d D D1 l1 l2 l3 l4 l5 6 ½" 7 ½" 8" 10" 11 ½"
65 160 400 80
30 25 42 120 39 2 21 30 36 X X
70 200 500 100
65 300 750 150
50 32 50 167 42 2 24 30 38 X X X X
70 400 1000 200
G50 70 550 1375 275 32 50 178 42 2 24 36 38 X X X
65 600 1500 300
65 48 68 200 45 3 32 45 42 X X
70 800 2000 400
65 1200 3000 600
75 60 90 265 58 3 35 50 54 X X
70 1500 3750 750

Technical data
MONOLASTIC®

Perm. damping Perm. angular Max.

Cdyn.with Max. displacement Radial spring Mass moment of inertia [kgm2]
Elastomer hardness power with displacement with permissible
Size 60 °C with 2200 rpm stiffness
[Shore A] 60 °C 2200 rpm operating speed
[Nm/rad] ΔKr [mm] Cr [N/mm]
PKW [W] ΔKw [°] JA JL nmax. [rpm]
65 3750 1150 6,5" 0,0038
30 25 0,5 1 0,00030 6000
70 4875 1500 7,5" 0,0057
65 9000 1300 8" 0,0078
50 35 0,5 1 0,00120 6000
70 12000 1700 10" 0,0153
7 ½” 0,0060
G50 70 17500 40 0,5 1 1910 8" 0,0080 0,00120 6000
10" 0,0162
65 14000 1900 10" 0,0238
65 45 0,5 1 0,00380 6000
70 18000 2450 11,5" 0,0368
65 34000 1850 10" 0,0272
75 80 0,5 1 0,01450 6000
70 42000 2400 11,5" 0,0402

For continuously updated data please refer to our online catalogue at www.ktr.com 207
MONOLASTIC®
One-piece, flexible flange couplings

Examples of installation for type with 3 holes (EP 0853203/U.S. Patent 6,117,017)

z=No. of holes No.

holes
holes
holes
holes

holes
holes
z=No. of holes No.

MONOLASTIC® 28 MONOLASTIC® 28 MONOLASTIC® 28

with spline shaft with taper shaft KUBOTA - Mini
holes
holes

holes
holes
holes
holes

MONOLASTIC® 32 - 188 MONOLASTIC® 32 S MONOLASTIC® 28

KUBOTA Super Three Series KUBOTA Super Mini
holes
holes
holes
holes

MONOLASTIC® 50 - 140 MONOLASTIC® 50 - 165

208 For continuously updated data please refer to our online catalogue at www.ktr.com
MONOLASTIC®
One-piece, flexible flange couplings

Examples of installation for SAE type (EP 0853203/U.S. Patent 6,117,017)

BoWex® FLE-PA/-PAC
z=No. of holes No.
z=No. of holes No.

holes
holes

MONOLASTIC® 30 MONOLASTIC® 30
with spline shaft with taper shaft

BoWex-ELASTIC®
holes
holes

holes
holes

MONOLASTIC® 50 - 10“ MONOLASTIC® 50 - 270 MONOLASTIC® 50

KUBOTA engine Perkins engine
D1803, V2403, V2403T 403-13/403-15

MONOLASTIC®
holes
holes

holes
holes

MONOLASTIC® 65 - 10“ MONOLASTIC® 65 / T48

For continuously updated data please refer to our online catalogue at www.ktr.com 209
210
Magnetic couplings

Types and operating description 212

MINEX®-S
Containment shroud – material stainless steel 214
Containment shroud – material Hastelloy 216
Containment shroud – material PEEK 218
Containment shroud – material oxide ceramics 220
Conversion kits and customized component assem- 222
blies
Other types 223

MINEX®-S

211
Magnetic couplings
Types and operating description

General information
General description
MINEX®-S magnetic couplings transmit the torque without contact through mag-
netic forces between the internal and external rotor. They ensure a hermetic sepera-
tion between driving and driven side in pumps and mixers sealing critical liquids
and gases reliably. As a result they prevent serious leakages operating as a reliable
alternative to usual dynamic shaft seals.

Operation/structure
Internal rotor External rotor The coupling consists of an external and an internal rotor. The external rotor has
high-quality, permanent magnets of changing polarity on the inner side and the in-
ternal rotor has them on the outside.
The external rotor is normally fixed on the drive side and the magnets are glued in
the keyways. The magnets of the driven-sided internal rotor are completely encap-
sulated.

Run of flux lines Torque transmission

In their non-operative states the north and south poles of the rotors are opposite to
each other and the magnetic field is completely symmetric. It is only when the rotors
are twisted that the magnetic field lines are moved, hence the torque is transmitted
through the air gap. Then there is a synchronous operation under a constant torsion
angle.
If the maximum coupling torque and the maximum torsion angle are exceeded, the
power transmission is interrupted.

Containment shroud Sealing function

The containment shroud that is fixed to the housing separates internal and external
rotor from each other.
It ensures a completely leak-proof separation of product and atmosphere.
The sealing is achieved statically, e. g. with a flat seal or an O-ring, thus eliminating
the need to use dynamically loaded sealing elements.
As a standard KTR supplies both metallic and non-metallic containment shrouds.
The metallic types cover the widest applications range, yet causing eddy current
losses which might require cooling measures.
If eddy current losses can be definitely excluded, the energy-efficient alternative
materials PEEK and ceramics are available.

Use in explosive applications

MINEX® couplings are suitable for power transmission in drives in hazardous loca-
tions. The types with metallic and ceramic containment shrouds are certified and
confirmed according to EC directive 94/9/EC (ATEX 95) as components of cat-
egory II and thus suitable for the use in hazardous locations of zone 2G.

Please read through our information included in the respective Type Examination
Certificate and the operating and mounting instructions at www.ktr.com.

212 For continuously updated data please refer to our online catalogue at www.ktr.com
 Magnetic couplings
Types and operating description

Properties of magnetic couplings

Product Type with metallic containment Type with containment shroud Type with containment shroud
shroud made of PEEK made of oxide ceramics
Type Permanent-magnetic synchronous coupling
Properties
Permanent-magnetic   
Contactless   
Maintenance-free   
Torsionally flexible   
Low vibrations   
Special features/applications
Most common type No eddy current losses
Covering the widest performance range Energy-efficient and economic
Particularly suitable for pump drives/ Particularly suitable for dry running
applications with liquids For low demands on tmax [°C] High tmax [°C] and pmax [bar]
High tmax[°C] and pmax [bar] and pmax [bar]
Torque range TKN [Nm]
Max. 1.000 370 550
Max. pressure resistance [bar]
Pmax. Up to 90 bar depending on size Up to 16 bar depending on size Up to 25 bar depending on size
Geometries

MINEX®-S
Shaft diameter min. / max. [mm] 12/90 12/90 14/90
Max. temperature resistance [°C]
tmax. 150 / 300 depending on magnet material 130 300
Certifications/type examinations

ATEX  

For further details For further details For further details

see catalogue pages 214 -217 see catalogue pages 218 -219 see catalogue pages 220 -221

Torque reduction with temperature increase

110 %

105 %

100 %
Tmax. referring to nominal value

95 % Material combination SmCo/SmCo

(see table) in per cent [%]

90 %
Material combination SmCo/NdFeB
85 %

80 %

75 %

70 %
20 50 100 150 200 250 300
Temperature [°C]

Temporary torque reduction with increased temperature for alternative material combinations [%]

Please note:
KTR recommends to use NdFeB magnets for the external rotor, provided that the operating temperature falls below 150 °C.

For continuously updated data please refer to our online catalogue at www.ktr.com 213
MINEX®-S
Magnetic couplings

Containment shroud – material stainless steel

For legend of pictogram please refer to flapper on the cover

150 300

External rotor Containment Internal rotor

shroud

Technical data – Internal rotor and containment shroud

Dimensions [mm]
TK max. Internal rotor Containment shroud
Size [Nm] with ~
20 °C Finish bore 1) di SI
min max. DI1 LI1 GI min. max. DS1 DS2 DS3 DS4 ZS LS
SA 22/4 0,15 5 9 20 20 M3 2,0 2,0 21,5 38 46 4,5 8 29
SA 34/10 1 5 12 20 22 M3 2,0 5,5 34 46 55 4,5 4 30,5
SA 46/6 3 8 16 28 33 M4 6,5 7,0 46 64 78 4,5 8 45
SA 60/8 7 35 36,3 M5 1,7 5,5 50
12 22 59 75 89 5,5 8
SB 60/8 14 36 56 M5 0,0 4,0 70,3

Technical data – External rotor and general

Dimensions [mm]
External rotor General
Size
Finish bore 1) da Ltotal
min. max. DA1 DA2 GA LA1 LA2 LA3 ΔS min. max.
SA 22/4 5 11 18 38 M4 35 8,5 11 5 42 42
SA 34/10 5 14 22 53 M4 38,8 10,5 13 5,3 46 49,5
SA 46/6 5 24 40 69,5 M5 53 16 22 9 69 69,5
SA 60/8 9 32 M6 66 19 28 80 83,3
50 94,5 12
SB 60/8 9 38 M8 93,3 15 30 105,2 109,2

1)
1) Bore H7 with keyway to DIN 6885, sheet 1 [JS9]

MINEX® SA 60/8 NdFeB di Ø20mm da Ø24mm

Ordering
example: NdFeB – tmax. = 150 °C Finish bore (H7), feather keyway acc. to DIN 6885 sheet 1
Coupling size
Sm2Co17 – tmax. = 300 °C (JS9)

214 For continuously updated data please refer to our online catalogue at www.ktr.com
Examples of application

MINEX® couplings with containment shroud made of stainless steel are the most common type for pump drives and other applications with
liquids in the lower performance range. Subject to their high resistance to pressure and temperature they cover a wide application range.
The magnetic rotors are available from stock in an unbored or pilot bored design. If requested, the parts can be finish bored according to
ISO fit H7 with feather keyway to DIN 6885, sheet 1- JS9.
Inside the rotating magnetic field metallic containment shrouds generally cause losses of eddy current which are converted into heat and
which may require cooling measures. On applications with pumps the heat produced can basically be dissipated by the medium to be
pumped. If higher pressure resistance than covered by the KTR standard is required, KTR provide for customized special solutions.

Typical applications: gear pumps, centrifugal pumps, screw spindle pumps, agitators, PU foaming lines.

Use in explosive applications

MINEX® couplings with containment shroud made of stainless steel are suitable for power transmission in
drives in hazardous locations. They are certified and confirmed according to EC directive 94/9/EC (ATEX 95)
as components of category II and thus suitable for the use in hazardous locations of zone 2G.

II 2G c IIC T X

MINEX®-S
If the couplings operate in hazardous locations, the user has to provide for special meas-
ures. Please read through our information included in the respective Type Examination
Certificate and the operating and mounting instructions at www.ktr.com.

Technical data – Materials, temperature and pressure resistance

Internal rotor Containment shroud External rotor (+ optional flange hub)
TK max. [Nm]
Size Standard material Max. temperature Standard material Max. pressure Standard material Max. temperature
with 20 °C
Hub Magnets tmax. [°C] Hub Cont. shroud PN/Pmax. [bar] Hub Magnets tmax. [°C]
SA 22/4 0,15 1.4462 NdFeB 150 1.4571 1.4571 60/90 S355J2G3 NdFeB 150
SA 34/10 1 1.4462 NdFeB 150 1.4571 1.4571 16/24 S355J2G3 NdFeB 150
SA 46/6 3 1.4571 Sm2Co17 300 1.4571 1.4571 16/24 S355J2G3 Sm2Co17 300
SA 60/8 7 1.4571 Sm2Co17 300 1.4571 1.4571 40/60 S355J2G3 Sm2Co17* 300
SB 60/8 14 1.4571 Sm2Co17 300 1.4571 1.4571 40/60 S355J2G3 Sm2Co17* 300

*) External rotor alternatively available with magnets made of NdFeB (tmax.=150°C)

For continuously updated data please refer to our online catalogue at www.ktr.com 215
MINEX®-S
Magnetic couplings

Containment shroud – material Hastelloy

For legend of pictogram please refer to flapper on the cover

150 300

Optional flange hub

with bore da
External
rotor Containment
shroud
Internal rotor

Technical data – Materials, temperature and pressure resistance

Internal rotor Containment shroud External rotor (+ optional flange hub)
TK max. [Nm]
Size Standard material Max. temperature Standard material Max. pressure Standard material Max. temperature
with 20 °C
Hub Magnets tmax. [°C] Hub Cont. shroud PN/Pmax. [bar] Hub Magnets tmax. [°C]
SA 75/10 10 1.4571 Sm2Co17 300 1.4571 2.4602** 25/37,5 S355J2G3 Sm2Co17* 300
SB 75/10 24 1.4571 Sm2Co17 300 1.4571 2.4602** 25/37,5 S355J2G3 Sm2Co17* 300
SC 75/10 40 1.4571 Sm2Co17 300 1.4571 2.4602** 25/37,5 S355J2G3 Sm2Co17* 300
SA 110/16 25 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17* 300
SB 110/16 60 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17* 300
SC 110/16 95 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17* 300
SB 135/20 100 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17* 300
SC 135/20 145 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17* 300
SD 135/20 200 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17* 300
SC 165/24 210 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17 300
SD 165/24 280 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17 300
SE 165/24 370 1.4571 Sm2Co17 300 1.4571 2.4856 25/37,5 S355J2G3 Sm2Co17 300
SD 200/30 430 1.4571 Sm2Co17 300 1.4571 2.4856 16/24 S355J2G3 Sm2Co17 300
SE 200/30 550 1.4571 Sm2Co17 300 1.4571 2.4856 16/24 S355J2G3 Sm2Co17 300
SD 250/38 670 1.4571 Sm2Co17 300 1.4571 2.4856 16/24 S355J2G3 Sm2Co17 300
SE 250/38 820 1.4571 Sm2Co17 300 1.4571 2.4856 16/24 S355J2G3 Sm2Co17 300
SF 250/38 1000 1.4571 Sm2Co17 300 1.4571 2.4856 16/24 S355J2G3 Sm2Co17 300

*) External rotor alternatively available with magnets made of NdFeB (tmax. = 150°)
**) Containment shroud size 75 alternatively available made of stainless steel 1.4571 (PN/PMAX = 16/24 bar)

MINEX® SB 75/10 NdFeB di Ø20mm da Ø24mm Hastelloy

Ordering
example: NdFeB – tmax. = 150 °C Finish bore (H7), feather keyway Containment shroud type
Coupling size
Sm2Co17 – tmax. = 300 °C acc. to DIN 6885 sheet 1 (JS9) stainl. steel 1.4571 or Hastelloy

216 For continuously updated data please refer to our online catalogue at www.ktr.com
Examples of application

MINEX® couplings with containment shroud made of Hastelloy are the most common type for pump drives and other applications with
liquids in the average and higher performance range. Subject to their high resistance to pressure and temperature they cover a wide ap-
plication range.
Inside the rotating magnetic field metallic containment shrouds generally cause losses of eddy current which are converted into heat and
which may require cooling measures. On applications with pumps the heat produced can basically be dissipated by the medium to be
pumped. If higher pressure resistance than covered by the KTR standard is required, KTR provide for customized special solutions.

Typical applications: gear pumps, centrifugal pumps, screw spindle pumps, agitators, PU foaming lines.

Use in explosive applications

MINEX® couplings with containment shroud made of stainless steel are suitable for power
transmission in drives in hazardous locations. They are certified and confirmed according to
EC directive 94/9/EC (ATEX 95) as components of category II and thus suitable for the use in
hazardous locations of zone 2G.

II 2G c IIC T X

If the couplings operate in hazardous locations, the user has to provide for special meas-

MINEX®-S
ures. Please read through our information included in the respective Type Examination
Certificate and the operating and mounting instructions at www.ktr.com.

Technical data – External rotor and general

Dimensions [mm]
Internal rotor Containment shroud External rotor Flange hub General
Size Total length2)
Finish bore 1) SI
DI1 LI1 GI DS1 DS2 DS3 DS4 ZS LS DA1 DA2 DA3 LA1 GA df max. DF1 DF2 LF1 LF2 GF ΔS w. flange hub
di min. di max. min. max. min. max.
SA 75/10 39,5 46,5 41,3 140
12,2 164,5
SB 75/10 12 32 45 58 M6 4 26,5 75 100 118 9 8 102 90 100 110 61,3 M6 42 60 114 64,5 35,5 M8 142
SC 75/10 80 4,0 83,8 14,2 166,5 166,5
SA 110/16 45 55,0 41,3 177,5
SB 110/16 14 55 80 65 M8 4 35,0 110 133 153 9 12 115 126 135 145 61,3 M6 55 85 150 99,5 59,5 M10 18,7 183,5 214,5
SC 110/16 85 15,0 81,3 203.5
SB 135/20 65 50,5 70,3
18,2 190,5
SC 135/20 20 70 90 85 M10 4 30,5 135 158 178 9 16 139 150 160 170 90,3 M6 70 100 170 65,5 48,5 M12 204,5
SD 135/20 110 8,0 110,3 20,7 200,5
SC 165/24 85 61,5 90,3 18,2
233
SD 165/24 24 80 110 110 M12 6 39,0 163,5 192 218 11 12 170 180 188 198 110,3 M6 75 110 198 77 60 M16 247
20,7
SE 165/24 130 19,0 130,3 234
SD 200/30 135 24,0 130,3
200 252 278 11 12 180 212 222 232 M6 80 120 232 120 98 M12 25,7 282 300
SE 200/30 38 90 130 M16 6
SD 250/38 115 46,0 110,3 282
SE 250/38 38 100 165 135 M16 6 26,0 255 285 315 13,5 12 182 272 282 292 130,3 M6 100 150 300 140 93 M16 25,7 302 322
SF 250/38 155 6,0 150,3 322

1)
1) Bore H7 with keyway to DIN 6885, sheet 1 (JS9)
2)
* Total length excl. flange hub = LS

For continuously updated data please refer to our online catalogue at www.ktr.com 217
MINEX®-S
Magnetic couplings

Containment shroud – material PEEK

For legend of pictogram please refer to flapper on the cover

150 300

Technical data – Internal rotor and containment shroud

Dimensions [mm]
TK max. Internal rotor Containment shroud
Size [Nm] with ~
Finish bore 1) di SI
20 °C
min. max. DI1 LI1 GI min. max. DS1 DS2 DS3 DS4 ZS LS = Ltotal
SA 75/10 10 39,5 54,5 108
8,5
SB 75/10 24 12 32 45 58 M6 34,5 99,9 115 135 9 8
SC 75/10 40 80 5,5 10,0
SA 110/16 30 45 46,0 115
SB 110/16 70 14 55 80 65 M8 4 26,0 140 151 168 9 12
SC 110/16 100 85 6,0
SB 135/20 110 65 48,0 144
SC 135/20 155 20 70 90 85 M10 4 28,0 157 167 180 5,5 12
SD 135/20 210 110 4,0
SC 165/24 220 85 32,0
4 156
SD 165/24 300 24 80 110 110 M12 8,0 196 210 225 6,6 12
SE 165/24 390 130 -5 -5,0 165

Technical data – External rotor, flange hub and general

Dimensions [mm]
External rotor Flange hub General
Total length* (incl.
Size
DA1 DA2 DA3 LA1 GA Max. finish bore 1) df DF1 DF2 LF1 LF2 GF ΔS flange hub)
min. max.
SA 75/10 41,3 148,5 172,5
12,2
SB 75/10 90 100 110 61,3 M6 42 60 114 64,5 35,5 M8 148,5 172,5
SC 75/10 83,8 14,2 168 172,5
SA 110/16 41,3 165,5 193,5
SB 110/16 130 138 150 61,3 M6 55 85 153 87,5 45,5 M10 18,7 172,5 193,5
SC 110/16 81,3 191,5 193,5
SB 135/20 70,3 216 225,5
18,2
SC 135/20 158 167 176 90,3 M6 70 100 176 89 67 M12 216 225,5
SD 135/20 110,3 20,7 224 224
SC 165/24 90,3 18,5 231 234,8
SD 165/24 186 195 204 110,3 M6 75 110 204 94 70 M16 231 233,3
21
SE 165/24 130,3 254,3 254,3
1)
1) Bore H7 with keyway to DIN 6885, sheet 1 [JS9]

Technical data
TK max. Internal rotor Containment shroud External rotor (+ optional flange hub)
Size [Nm] with Standard material Standard material Max. pressure Max. temperature Standard material
20 °C Hub Magnets Hub Cont. shroud PN/Pmax. [bar] tmax. [°C] Hub Magnets
SA 75/10 10 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SB 75/10 24 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SC 75/10 40 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SA 110/16 30 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SB 110/16 70 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SC 110/16 100 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SB 135/20 110 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SC 135/20 155 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SD 135/20 210 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SC 165/24 220 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SD 165/24 300 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB
SE 165/24 390 1.4571 Sm2Co17 Aluminium PEEK s. Tabelle s. Tabelle S355J2G3 NdFeB

MINEX® SB 75/10 NdFeB di Ø20mm da Ø24mm PEEK

Ordering
example: NdFeB – tmax. = 150 °C Finish bore (H7), feather keyway acc.
Coupling size Containment shroud type
Sm2Co17 – tmax. = 300 °C to DIN 6885 sheet 1 (JS9)

218 For continuously updated data please refer to our online catalogue at www.ktr.com
Examples of application Depending on
pressure and temperature resistance

MINEX® couplings with countainment shroud made of PEEK are an economic, Perm. nominal/testing pressure
energy-efficient alternative to the types made of metal. They do not gener- Temperature
[°C]
ate any eddy current losses and as a result do not generate any heat so that PN [bar] PMAX [bar]

usually expensive cooling measures can be done without. Moreover, they are 40 14 21
characterized by low susceptibility to fracture, low weight and easy handling. 70 13 19,5
They are ideally suitable for applications with low demands on temperature 100 12 18

and pressure resistance. 130 10 15

Typical applications: vacuum pumps, fan drives, compressors, agitators, PU

foaming lines.

MINEX®-S
SA = Sl + ΔS

Optional flange hub with bore da

External rotor
Containment shroud with
clamping ring 2) Internal rotor

2)
Containment shroud size 75 also available as a single-part design!

For continuously updated data please refer to our online catalogue at www.ktr.com 219
MINEX®-S
Magnetic couplings

Containment shroud – material oxide ceramics

For legend of pictogram please refer to flapper on the cover

150 300

Technical data – Internal rotor and containment shroud

Dimensions [mm]
TK max. Internal rotor Containment shroud
Size [Nm] with ~
20 °C Finish bore 1) di SI
min. max. DI1 LI1 GI min. max. DS1 DS2 DS3 DS4 ZS LS = Ltotal
SA 110/16 30 45 48,0
SB 110/16 70 14 55 72 65 M8 4 28,0 132 151 168 9 12 115
SC 110/16 100 85 9,0
SB 135/20 110 65 46.5
SC 135/20 155 20 70 90 85 M10 4 26,5 157 167 180 5,5 12 143
SD 135/20 210 110 4,0
SC 165/24 220 85 28,0
150
SD 165/24 300 24 90 110 110 M12 4 4,0 196 210 225 6,6 12
SE 165/24 390 130 17,0 185
SD 200/30 430
38 90 130 135 M16 4 4,0 229 246 265 9 12 185
SE 200/30 550

Technical data – External rotor, flange hub and general

Dimensions [mm]
External rotor Flange hub General
Total length* (incl.
Size
DA1 DA2 DA3 LA1 GA Max. finish bore 1) df DF1 DF2 LF1 LF2 GF ΔS flange hub)
min. max.
SA 110/16 41,3 165,5 195,5
SB 110/16 130 138 150 61,3 M6 55 85 153 87,5 45,5 M10 18,7 171,5 195,5
SC 110/16 81,3 191,5 196,5
SB 135/20 70,3 215 224
18,2
SC 135/20 158 167 176 90,3 M6 70 100 176 89 67 M12 215 224
SD 135/20 110,3 20,7 220 220
SC 165/24 90,3 18,5 225 230,5
SD 165/24 186 195 204 110,3 M6 75 110 204 94 70 M16 229 229
20,7
SE 165/24 130,3 260 260
SD 200/30
220 230 240 130,3 M6 80 120 240 120 88 M16 25,7 280 280
SE 200/30

* Total length excl. flange hub = LS

Technical data
Internal rotor Containment shroud External rotor (+ optional flange hub)
TK max. [Nm]
Size Standard material Max. temperature Standard material Max. pressure Standard material Max. temperature
with 20 °C
Hub Magnets tmax. [°C] Hub Cont. shroud PN/Pmax. [bar] Hub Magnets tmax. [°C]
SA 110/16 25 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SB 110/16 60 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SC 110/16 95 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SB 135/20 100 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SC 135/20 145 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SD 135/20 200 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SC 165/24 210 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SD 165/24 280 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SE 165/24 370 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SD 200/30 430 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300
SE 200/30 550 1.4571 Sm2Co17 300 Aluminium ZrO2MgO 25/37,5 S355J2G3 Sm2Co17 300

MINEX® SB 135/20 NdFeB di Ø20mm da Ø24mm Oxidkeramik ZrO2MgO

Ordering
example: NdFeB – tmax. = 150 °C Finish bore (H7), feather keyway acc.
Coupling size Containment shroud type
Sm2Co17 – tmax. = 300 °C to DIN 6885 sheet 1 (JS9)

220 For continuously updated data please refer to our online catalogue at www.ktr.com
Examples of application

Like with the types with containment shroud made of PEEK, MINEX® couplings with containment shroud made of ceramics are an eco-
nomic, energy-efficient alternative to the types made of metal. Again they do not generate any eddy current losses and as a result do not
generate any heat so that usually expensive cooling measures can be done without. Compared to PEEK, the containment shrouds made
of ceramics are characterized by higher resistance to pressure and an excellent temperature resistance.

Typical applications: vacuum pumps, fan drives, compressors, agitators, PU foaming lines.

MINEX®-S
Optional flange hub with bore DA

External rotor
Containment shroud with
clamping ring
Internal rotor

Use in explosive applications

MINEX® couplings with containment shrouds made of oxide ceramics are suitable for power transmission in
drives in hazardous locations. They are certified and confirmed according to EC directive 94/9/EC (ATEX 95)
as components of category II and thus suitable for the use in hazardous locations of zone 2G.

II 2G c IIC T X

Please read through our information included in the respective Type Examination Certificate and the
operating and mounting instructions at www.ktr.com.

For continuously updated data please refer to our online catalogue at www.ktr.com 221
MINEX®-S
Magnetic couplings

Conversion kits and customized component assemblies

Cont. shroud External rotor Flange hub Distance rings

Adapter flange KTR bellhousing Internal rotor

On request KTR can offer customer-specific solutions in combination with hydraulic components from KTR, whereby existing systems can
be easily retrofitted with MINEX®-S.

Conversion kits for PUR foaming processes

Conveying and proportioning the media polyol and isocyanate in the processing plants
for PUR, ambient air has to be prevented from penetrating into the process, since oth-
erwise unrequested reactions may be generated.
For a reliable sealing of such drives KTR offers standard conversion kits, among others
for axial piston pumps types REXROTH A2VK and ROTARY POWER C series offering
the following benefits:
zz Maintenance-free operation
zz Standstill periods are considerably reduced Maintenance-free sealing of dosing pumps for polyde and
isocyanate in high-pressure reaction casting machines
zz No more problems with sealing
zz Better efficiency and process safety
The assemblies are available for all motor-pump-combinations and in various materials.

Pump data Motor data (4 poles, n=1500 RPM) Coupling data

Power Torque Max. torque
Pump Type Engine Size Bellhousing
[kW] TN Tk max.
132 S 5,5 35 Nm SB 110/16 60 Nm
A2VK-12 132 M 7,5 48 Nm SC 110/16 95 Nm PL 300/13/…
160 M 11 70 Nm SC 135/20 145 Nm
160 M 11 70 Nm SC 135/20 145 Nm
A2VK-28 160 L 15 96 Nm SD 135/20 200 Nm PL 350/7…
REXROTH A2VK 180 M 18,5 118 Nm SD 135/20 200 Nm
160 L 15 96 Nm SC 165/24 210 Nm
PL 350/7/…
180 M 18,5 118 Nm SC 165/24 210 Nm
A2VK-55 180 L 22 144 Nm SD 165/24 280 Nm PL350/7/…
200 L 30 196 Nm SE 165/24 280 Nm PL400/5/…
225 S/M 37/45 240/292 Nm SE 165/24 370 Nm PL450/3/…
A2VK-107 225 S/M 37/45 240/292 Nm SE 165/24 370 Nm PL400/5/…
C 01 100L 2,2 14 Nm SB 75/10 24 Nm PK 250/13/…
C 04 132 M 7,5 48 Nm SC 110/16 95 Nm PL300/13/…
132 S 5,5 35 Nm SB 110/16 60 Nm PL300/13/…
ROTARY POWER C-Range C 07
132 M 7,5 48 Nm SC 110/16 95 Nm PL300/13/…
160 L 15 96 Nm SD 135/20 200 Nm PL 350/7/…
C20
180 M 18,5 118 Nm SD 135/20 200 Nm PL 350/7/…

222 For continuously updated data please refer to our online catalogue at www.ktr.com
MINEX®-S
Magnetic couplings

Other types

Disk coupling Hysteresis coupling MINEX®-H

With this type the magnets are arranged opposite to each other Different from the MINEX®-S magnetic coupling this type switches
in axial direction. This type is beneficial if there is only little axial to slipping operation once the maximum transmittable torque has
mounting space and a flat separating wall between the rotors is been achieved, while it continues to transmit Tmax as a holding
requested. torque. Applications: roll conveyors, winder drives, etc.

MINEX®-S completely made of stainless steel MINEX®-S Custom Design

If requested, KTR supplies MINEX®-S completely made of stain- KTR is able to supply also customer specific design solutions

MINEX®-S
less steel. Die Magnete des Außenrotors sind dann in gleicher including drive shaft and slide bearings upon request.
Weise verkapselt wie beim Innenrotor. Anwendungen: Offshore-
Bereich, Marine etc.

Use of MINEX®-S on a small centrifugal pump MINEX®-S for sealing homogenizers for
heavy oil processing in marine operation

Retrofitting of a gear pump with MINEX® SA 75/10, MINEX®-S for sealing of autoclaves (T.B.M. / STERICHEM)
Bellhousing PK 200/30, foot flange and damping rod in laboratories and hospitals

Technical data for coupling selection/selection of components

Motor type Pump type

Driving power kW Speed 1/min

Pressure bar Temperature °C

Viscosity of medium mm²/s Max. perm. dimensions ØD x Ltotal

For continuously updated data please refer to our online catalogue at www.ktr.com 223
224
Torque Limiters

Types and operating description 226

Selection of torque limiters 227

RUFLEX® SYNTEX®
Structure and operation 228 Structure and operation 242
Standard 229 Operating principles 243
With sprocket 230 Flange type 244
Max. type 231 With sprocket 246
With torsionally flexible ROTEX® 232 With toothed belt pulley 248
With torsionally rigid BoWex® 233 With backlash-free ROTEX® GS 249

KTR-SI SYNTEX®-NC / KTR-SI Compact

Structure and operation 234 SYNTEX®-NC 250
Operating principles 236 Hub type 252
KTR-SI flange type 237 With backlash-free ROTEX® GS 253
With torsionally flexible ROTEX® 238 With torsionally rigid TOOLFLEX® S 254
KTR-SI FRE flange type 239
KTR-SI FRE with torsionally flexible ROTEX® 240
KTR-SI special types 241 KTR-SI Compact
Flange type 255
With backlash-free ROTEX® GS 256

RUFLEX® KTR-SI SYNTEX® SYNTEX®-NC KTR-SI Compact

225
Torque limiters
Types and operating description

Properties of torque limiters

Product RUFLEX® KTR-SI KTR-SI FRE SYNTEX® SYNTEX®-NC KTR-SI Compact

Type Torque limiter Overload system Overload system Backlash-free overload system
Torque limitation
Friction (load-keeping) 
Ratchet coupling
Synchronous ratching SK/SR
   
(load-separating)
Ratching DK
   
(load-separating)
Idle rotation FR/FRE
 
(load-separating)
Fail-safe SGR

(no mechanical separation)
Properties

Backlash-free   

High repeating accuracy     

Quick separation with overload  

Signal by limit switch/sensor     

Torque setting while in place      

Torque range TKN [Nm]

min. - max. 0,5 - 6.800 2,5 - 8.200 60.000 (and higher) 6 - 400 9 - 265 3 - 3.100
Max. bore [mm]
120 100 200 (and higher) 50 42 80
Shaft-hub-connection
Positive locking (type 1.0)      
Frictionally engaged (type   
4.5/6.1)
Speed n max. [RPM]
10.000 5.000 3.300 1.500 3.000 4.000
Special features

For tailor-made
High power density, Hardened surfaces, Modular design, for solutions, low cost, ide- High power density, Hardened surfaces,
low price solid design high torques ally suitable for higher light-weight design solid design
quantities

Applications
Slowly rotating drives
Dynamic drives, Packaging machines,
such as sprocket or Customized design,
Rugged drive situations, Shredders, extruders, packaging machines, special purpose
toothed belt drives, packaging machines,
e. g. crushers, … steel mills, test benches machine tools, linear machines, conveyor
conveyors, rotary feed- linear drives,…
drives,… technology…
ers, …

 ≈ Standard

Information on selection of torque limiters

– For an accurate selection of torque limiters, latest simulation and calculation programs are available. Please advise as many data of your drive as possible. The more accurate these data are,
the more accurate will be the results of the calculations. Make use of this option and consult with us about the application beforehand.
– Please note: Big masses on the driving or driven end can mean long slow-down times in case of torques limiters entered in function. This may cause higher wear on the coupling. Therefore
in case of high speeds we recommend to use and idle-rotating (load-separating) overload system (KTR-SI idle rotation coupling). If necessary, please consult with KTR’s engineering depart-
ment.
– Besides it is important for the failure-free operation to set the switching torque clearly above the max. operating torque of the unit. Therefore we recommend to set the coupling at least 30 %
above the max. operating torque (also refer to the diagram on the right).
– For all torque limiters an electrical disconnection of the drive should be provided. Long slipping or ratching times may destroy the coupling. That is why the coupling may by used with reduced
speed only when the maximum release torque arises. We are pleased to assist you with technical questions, the selection of sensors, limit switches or speed monitoring.

226 For continuously updated data please refer to our online catalogue at www.ktr.com
Torque limiters
Types and operating description

RUFLEX®
Product finder of torque limiters

Product RUFLEX® KTR-SI KTR-SI FRE SYNTEX® SYNTEX®-NC KTR-SI Compact

Type Torque limiter Overload system Overload system Backlash-free overload system
Types (extract)
Combined with:

KTR-SI
» Sprocket / toothed belt pul-
    
ley / flange

» ROTEX®   

» BoWex® 

» TOOLFELX® 

» ROTEX® GS   

Integrated ball bearing   

 ≈ Standard

Important factors for the selection of torque limiters:

SYNTEX®
A smooth operation is only ensured if the overload torque set exceeds the maximum operating torque of the machine (see diagramme below).

T [Nm]


X=30 % of the max. operating torque

 SYNTEX®-NC

t [с]

 Torque curve of the machine

 Max. operating torque arising on the machine
 Torque of the coupling set
KTR-SI Compact

For continuously updated data please refer to our online catalogue at www.ktr.com 227
RUFLEX®
Torque limiters

Structure and operation

zz Securing of the nut by locking in 12 different positions

zz Overload protection up to 6800 Nm (standard) zz Easy assembly and torque setting

zz Available with integrated sprocket zz Coupling components made of steel, high safety re-
serves
zz Asbestos-free and rust-proof friction lining for dry running
(ATEX available on request ) zz Corrosion protection by zinc-coated and passivated
surfaces
zz High wear capacity, long service life
zz Rust-proof and acid-proof type on request
zz High-quality slide bush with dry-film lubricant
zz Hohe Leistungsdichte durch hochwertige Federn und
zz Torque setting while in place
Reibbeläge
The RUFLEX® modular system provides solutions for your drive, too.
The combination with the approved KTR couplings and the integration of customer-specific drive components (e. g. sprockets) allows for
an overload protection optimally adapted to every application.
Various layers of disk springs and high-quality friction linings ensure a high power density even with only few mounting space.

RUFLEX® consists of the following components:

8 1 7 6 10 6 2 5 9 3 4

List of components:
1 Hub 6 Friction lining
2 Thrust washer 7 Slide bush
3 Setting nut 8 Setscrew
4 Torque setting screws 9 Locking washer
5 Disk spring 10 Drive component (e. g. sprocket)

Layers of disk springs:

1 TF 1 TFD
zz Small specific load on the friction linings zz Small specific load on the friction linings
zz For small to average torques zz Torques like with type 1 TF
zz Long service life of friction linings zz Only small decrease of the torque even with longer
period of friction
zz Precision torque adjustment due to a double spring
excursion
2 TF
zz Average specific load on the friction linings
zz Average wear and decrease of torque with longer 2 TFD
slipping periods zz Average specific load on the friction linings
zz Double torque due to double layer of the disk zz Torques like with type 2 TF
springs zz Only small decrease of the torque even with longer
period of friction
3 TF zz Precision torque adjustment due to a double spring
zz High specific load on the friction linings excursion
zz High wear and decrease of torque with longer
slipping periods
zz Suitable only in special cases for designs with only
limited dimensions

228 For continuously updated data please refer to our online catalogue at www.ktr.com
RUFLEX®
Torque limiters

RUFLEX®
Standard width of drive component

For legend of pictogram please refer to flapper on the cover

KTR-SI
SYNTEX®
Size 00 Size 0 - 5 Size 6 - 8

Technical data – Dimensions

Dimensions [mm]
Max. Torques [Nm] Drive component
Size speed4) Bore d Setscrew
b1
[RPM]
1TF 2TF 3TF 3) pilot b. max. D2) D1 DA B min. max. S1 L t G
00 10000 0,5-3 1-5 – – 10 21 30 30 8,5 2 6 2,5 31 3 M4
0 8500 2-10 4-20 – – 20 1) 35 45 45 8,5 2 6 2,5 33 3 M4
01 6600 5-35 10-70 – – 22 40 40 58 16 3 8 3 45 4 M5
1 5600 20-75 40-150 130-200 – 25 44 45 68 17 3 10 3 52 5 M5
2 4300 25-140 50-280 250-400 – 35 58 58 88 19 4 12 3 57 5 M6
3 3300 50-300 100-600 550-800 – 45 72 75 115 21 5 15 4 68 5 M6
4 2700 90-600 180-1200 1100-1600 – 55 85 90 140 23 6 18 4 78 5 M8

SYNTEX®-NC
5 2200 400-800 800-1600 1400-2100 – 65 98 102 170 29 8 20 5 92 8 M8
6 1900 300-1200 600-2400 – 38 80 116 120 200 31 8 23 5 102 8 M8
7 1600 600-2200 1200-4400 – 45 100 144 150 240 33 8 25 5 113 8 M10
8 1300 900-3400 1800-6800 – 58 120 170 180 285 35 8 25 5 115 8 M10
1)
Finish bore exceeding Ø19, keyway to DIN 6885 sheet 3
2)
Bore tolerance (drive component): F8 with size 00-4, H8 witht size 5-8
3)
With clamping setting nut, to be used on types with limited dimensions only
4)
See comments on page 226

On request:
KTR-SI Compact

zz with clamping setting nut for size 00 – 5. (standard with 3TF) zz with taper bush (hub design 4.5)
zz for radial torque setting zz frictionally engaged shaft-hub-connection

RUFLEX® 1 2TF b1 10 d Ø20

Ordering
example: Width of drive component
Type / size Disk spring layer Finish bore
b1

For continuously updated data please refer to our online catalogue at www.ktr.com 229
RUFLEX®
Torque limiters

With sprocket

For legend of pictogram please refer to flapper on the cover

Technical data – Dimensions

Max. speed Dimensions [mm]
Torques [Nm]
Size 3) Max. bore Setscrew
[RPM] Standard sprocket 2)
1TF 2TF 3TF 1) d D1 DA B S1 L t G
01 6600 5-35 10-70 – 22 40 58 16 3 45 4 M5 06 B-1 (3/8 x 7/32) z = 23
1 5600 20-75 40-150 130-200 25 45 68 17 3 52 6 M5 08 B-1 (1/2 x 5/16) z = 22
2 4300 25-140 50-280 250-400 35 58 88 19 3 57 6 M6 08 B-1 (1/2 x 5/16) z = 27
3 3300 50-300 100-600 550-800 45 75 115 21 4 68 6 M6 12 B-1 (3/4 x 7/16) z = 22

1)
With clamping setting nut, to use only for designs with limited dimensions
2)
Minimum number of teeth required / Other sprockets available on request
3)
See comments on page 226

Special type:

zz Available with needle bearing instead of slide bush

on request
zz For high radial load on the sprocket
zz For high speeds or long slipping periods

RUFLEX® 1 2TF d Ø20 08 B -1 (1/2 x 5/16), z=29 100 Nm

Ordering
example: Type / size Disk spring layer Finish bore Sprocket Torque set

230 For continuously updated data please refer to our online catalogue at www.ktr.com
RUFLEX®
Torque limiters

RUFLEX®
Max. type

For legend of pictogram please refer to flapper on the cover

KTR-SI
SYNTEX®
Technical data – Dimensions
Dimensions [mm]
Max. speed 3) Torques [Nm]
Size Max. bore Maximum Maximum
[1/min]
1TF 2TF 3TF 2) d D1 DA B b D1) L
01 6600 5-35 10-70 – 22 40 58 16 33 40 70
1 5600 20-75 40-150 130-200 25 45 68 17 43 44 85
2 4300 25-140 50-280 250-400 35 58 88 19 54 58 100
3 3300 50-300 100-600 550-800 45 75 115 21 62 72 115

SYNTEX®-NC
4 2700 90-600 180-1200 1100-1600 55 90 140 23 91,5 85 154

1)
Bore tolerance (drive component): F8
2)
With clamping setting nut, to use only for designs with limited dimensions
3)
See comments on page 226

Example:

zz RUFLEX® max. with sprocket assembled

zz Available as a complete component assem-
bly with torque preset
KTR-SI Compact

RUFLEX® max. 1 2TF b 35 d Ø20

Ordering
example: Type / size Disk spring layer Width of drive component b Finish bore

For continuously updated data please refer to our online catalogue at www.ktr.com 231
RUFLEX®
Torque limiters

With torsionally flexible ROTEX®

For legend of pictogram please refer to flapper on the cover

120

Technical data – Dimensions

ROTEX® torques
Dimensions [mm]
RUFLEX® ROTEX® RUFLEX torques [Nm]
® [Nm]
size size 98 Shore-A Bore d Max. bore
1TF 2TF 3TF 2) TKN TKmax pilot b. max. d1 DH DA l1 l2 E L LG
00 14 0,5-3 1-5 – 12,5 25 – 10 16 30 44 11 35 13 31 59
0 19 2-10 4-20 – 17 34 – 20 1) 25 40 63 25 37 16 33 78
01 24 5-35 10-70 – 60 120 – 22 35 55 80 30 50 18 45 98
1 28 20-75 40-150 130-200 160 320 – 25 40 65 98 35 58 20 52 113
2 38 25-140 50-280 250-400 325 650 – 35 48 80 120 45 64 24 57 133
3 48 50-300 100-600 550-800 525 1050 – 45 62 105 162 56 82 28 68 166
4 75 90-600 180-1200 1100-1600 1465 2930 – 55 95 160 185 85 80 40 78 205
5 90 400-800 800-1600 1400-2100 3600 7200 – 65 110 200 260 100 114 45 92 259
6 100 300-1200 600-2400 – 4950 9900 38 80 115 225 285 110 130 50 102 290
7 110 600-2200 1200-4400 – 6000 12000 45 100 125 255 330 120 142 55 113 317
8 140 900-3400 1800-6800 – 11000 22000 58 120 160 372 410 115 65 155 152 372

1)
Finish bore exceeding Ø19, feather keyway acc. to DIN 6885 sheet 3
2)
With clamping setting nut, to use only for designs with limited dimensions

Special type:

zz RUFLEX® as intermediate shaft coupling

zz For large shaft distance dimensions
zz Available in combination with ROTEX® or
RADEX®-N steel lamina coupling

RUFLEX® 1 2TF d Ø20 ROTEX® 28 98 Sh-A d1 Ø25 100 Nm

Ordering
example: RUFLEX®
Type / size Disk spring layer Type / size Spider ROTEX® bore Torque set
bore

232 For continuously updated data please refer to our online catalogue at www.ktr.com
RUFLEX®
Torque limiters

RUFLEX®
With torsionally rigid BoWex®

For legend of pictogram please refer to flapper on the cover

KTR-SI
280

SYNTEX®
Technical data – Dimensions
Dimensions [mm]
RUFLEX® RUFLEX® torques [Nm] BoWex® torques [Nm]
BoWex® size Max. bore
size
1TF 2TF 3TF 2) TKN TK max. d d1 DA l1 L E LG
00 19 0,5-3 1-5 – 16 32 10 19 48 25,0 31 2,5 58,5
0 28 2-10 4-20 – 45 90 20 1) 28 66 40,0 33 2,5 75,5
01 38 5-35 10-70 – 80 160 22 38 83 35,5 45 1,0 81,5
1 48 20-75 40-150 130-200 140 280 25 48 95 45,5 52 1,0 98,5
2 65 25-140 50-280 250-400 380 760 35 65 132 64,0 57 1,0 122

SYNTEX®-NC
1)
Finish bores exceeding 19 mm, feather keyway acc. to DIN 6885 sheet 3
2)
With clamping setting nut, to use only for designs with limited dimensions

Special type:

zz RUFLEX® with torsionally rigid, backlash-free

RADEX®-N steel lamina coupling
zz For high operating temperatures (up to
280 °C)
zz With variable spacers adapted to the different
shaft distance dimensions
KTR-SI Compact

RUFLEX® 1 1TF d Ø20 BoWex® 48 d1 Ø25 50 Nm

Ordering
example: RUFLEX ®
BoWex®
Type / size Disk spring layer Type / size Torque set
bore bore

For continuously updated data please refer to our online catalogue at www.ktr.com 233
KTR-SI
Overload systems

Structure and operation

zz Overload protection up to 8200 Nm zz Different types also suitable for

zz Available as a ratchet, synchronous your application
and fail-safe design with the same di- zz Easy assembly and torque setting
mensions zz Maintenance-free
zz Reduction of torque peaks zz Insensitive to oil and grease
zz High repeating accuracy, even after a zz High service life due to high-
long operating period quality materials
zz Disconnection of the drive with over-
load by retrieving limit switch
zz Automatically operative

In case of overload the ratchet components (balls or rollers) leave their indentations, and a relative motion between the driving and driven
side is generated. Damages caused by overload are reliably prevented in this way. The shift ring (3) makes an axial motion to the shifting
way „H “ activating the limit switch or proximity initiator. The signal can be used for controlling or disconnecting the drive. For restarting we
would recommend to bypass the limit switch or proximity switch electrically for a short time.

Component Description
1 Hub
2 Flange ring
3 Shift ring
4 Setting nut
5 Disk spring
6 Ball retainer
7 Slide bush
8 Axial disk
9 Axial needle bearing
10 Setscrew
11 Locking washer

1 8 9 7 2 6 3 5 11 4 10

No signal with normal operation Signal with overload

Engaged Limit switch Disengaged Limit switch

234 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR-SI FRE
Idle rotating overload system

RUFLEX®
Structure and operation

zz Idle rotating overload system zz Combination with ROTEX®, GEARex®

(load separating) or RADEX®-N as a shaft-to-shaft con-
zz High repeating accuracy nection
zz Flange type to connect toothed belt pul- zz The intelligent further development
leys or sprockets of shear pin couplings and hydraulic
clamping sets
zz Setting range up to 60,000 Nm
(higher torques possible on request)

KTR-SI
The core of the overload system is formed by the idle rotation elements. In case of overload they uncouple the driving and driven side while
protecting the drive train from damages. After eliminating the overload, the rotation segments are manually re-engaged so that the drive is
released again. In order to set the coupling to the requested release torque, a defined prestress is generated on the disk springs in each idle
rotation element via the setting nut. The number of elements varies depending on the release torque demanded. If requested, the coupling
can be preset by the manufacturer. It is also possible to adapt the coupling while in place.

SYNTEX®
Component Description 14
1 Hub
2 Bearing flange
3 Cylinder screw
4 Groove ball bearing
5 O-ring
6 KTR-SI FRE connection flange
7 Angular ball bearing
8 NILOS ring
9 Supporting washer
10 Locking plate
11 Groove nut
12 Adjusting washer

SYNTEX®-NC
13 Idle rotation element
14 Setscrew

11 10 9 8 4 6 7 2 3 5 1 12 13
KTR-SI Compact

For continuously updated data please refer to our online catalogue at www.ktr.com 235
KTR-SI / KTR-SI FRE
Overload systems

Operating principles

1. Idle rotation type FR/ FRE

Torque set
T [Nm]
Operating principle of KTR-SI idle-rotation couplings:
When achieving the torque set, the coupling rotates. Subject to the idle rotation mecha-
Torque curve
nism driving and driven side remain separated. The resulting flywheel mass may run out in
idle state. After eliminating the overload, the coupling can be re-engaged. The re-engage-
ment is effected manually or via a device.

No residual torque

t [s]

Re-engagement of FR Re-engagement of FRE

Disengaged
1 1
Disengaged Engaged
3
2

2
3
Engaged

Re-engagement of the idle rotation coupling: Re-engagement of idle rotation elements

Re-engagement is effected via axial pressure on the shift ring (1). After eliminating the overload, driving and driven side are aligned
Dependent on the existing resources, accessability etc., the re-en- to each other. By means of a plastic hammer (2) or a tyre lever
gagement can be effected in different ways: By several blows of a (3) the idle rotation elements (4) are manually re-engaged. Re-
plastic hammer (2) axially on the shift ring (see above), by assembly engagement can be heard loudly. The overload coupling is ready
levers (3) or by a pneumatic or hydraulic engagement device (auto- for use again.
mated process of engagement).

2. Ratchet design DK 3. Synchronous design SR 4. Fail-safe design SGR

Any engagement after an overload. After Synchronous engagement after an over- The fail-safe design is a pure torque mea-
eliminating the overload, the balls engage load. After eliminating the overload, the surement without any ratchet operation.
automatically with the next following ball balls re-engage automatically with the disk In case of overload a signal is generated
indentation. springs after a rotation of 360°. Driving and by the limit switch, producing a mechani-
driven side are always placed in the same cal separation of driving and driven side =
position to each other. Other degrees of ratching is not possible.
re-engagement, for example 180°, are also
possible.

236 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR-SI
Overload systems

RUFLEX®
Flange type

For legend of pictogram please refer to flapper on the cover

KTR-SI
X° 360° ± 15 %

Type FT Type KT Type LT

z = Anzahl

SYNTEX®
H=stroke

Technical data
Torques [Nm]
Weight with
Size Type DK Type SR and SGR Type FR
max. bore [kg]
T1 T2 T3 T4 T1 T2 T3 T4 T1 T2 T3 nmax. [RPM]3)
0 2,5-5 5-20 – 20-40 5-10 10-40 – – 5-10 10-20 20-40 6000 0,41
1 6-12 12-25 25-55 55-100 12-25 25-50 50-100 – 12-25 25-50 50-100 5000 1,30
2 12-25 25-50 50-120 120-200 25-50 50-100 100-200 – 25-50 50-100 100-200 4000 2,27
3 25-50 50-100 100-250 200-450 50-100 100-200 200-450 – 50-100 100-200 200-450 3500 3,88
4 50-100 100-200 200-500 500-1000 100-200 200-400 400-800 800-2000 100-200 200-400 400-800 3000 8,34
5 85-250 230-600 300-1000 600-2000 170-450 350-900 600-1800 1200-3400 170-450 350-900 600-1800 2300 13,51
6 180-480 360-960 720-1950 1600-3300 300-750 600-1500 1200-3000 2900-5800 – – – – 21
7 250-520 500-1050 1000-2100 2000-3600 550-1100 1100-2200 2200-4400 3000-8200 – – – – 37

SYNTEX®-NC
Dimensions [mm]
Bore d H=stroke
Size
pilot b. max. d1 D D1 D2 DA l1 l2 l3 l4 l5 l6 l7 L L1 L2 z DK SR SGR FR
0 7 20 41,0 28 38 48 55 4,0 6,5 3,0 7,5 9 8 27,5 38,5 51,0 66,0 6xM5 1,4 1,2 0,6 1,6
1 10 25 60,0 38 50 70 82 4,0 8,0 6,0 11,5 9 10 33,0 52,0 70,0 85,0 6xM5 2,3 1,8 0,8 2,3
2 14 35 78,0 52 60 89 100 5,0 10,0 5,0 12,0 9 12 39,0 61,0 78,0 100,0 6xM6 2,4 2,0 1,1 3,0
3 18 45 90,5 65 80 105 120 5,0 12,0 8,5 21,0 10 12 47,0 78,0 96,0 125,0 6xM8 2,7 2,2 1,2 3,5
4 24 55 105,0 78 100 125 146 6,5 15,0 11,0 27,0 9 16 52,5 100,0 124,5 152,5 6xM101) 3,7 2,5 1,2 3,8
5 30 65 120,5 90 120 155 176 6,5 17,0 12,0 33,0 9 18 57,5 113,5 140,0 171,0 6xM121) 4,6 3,0 1,6 4,5
6 2) 40 80 136,0 108 130 160 200 7,0 20,0 14,0 39,0 9 20 64,0 119,0 150,0 183,0 6xM121) 5,0 3,5 2,5 –
7 2) 50 100 168,0 135 160 200 240 8,0 25,0 15,0 46,0 9 25 72,0 141,0 175,0 213,0 6xM161) 5,5 4,0 2,7 –

1)
Type T4 SR and SRG: tightening torques according to 12.9
2)
Size 6: dimension l8 = 15 mm, size 7: dimension l8 = 21 mm
3)
See comments on page 226
KTR-SI Compact

KTR-SI 2 FR FT T2 d Ø20 40 Nm
Ordering
example: Type
Type / size Type Disk spring layer Bore Torque set
[DK/SR/SGR]

For continuously updated data please refer to our online catalogue at www.ktr.com 237
KTR-SI
Overload systems

With torsionally flexible ROTEX®

For legend of pictogram please refer to flapper on the cover

120
X° 360° ± 15 %

H=stroke

Technical data
Torque [Nm] of type DK Torque [Nm] of type SR and SGR Torque [Nm] of type FR
KTR-SI size
T1 T2 T3 T4 T1 T2 T3 T4 T1 T2 T3
0 2,5-5 5-20 – 20-40 5-10 10-40 – – 5-10 10-20 20-40
1 6-12 12-25 25-55 55-100 12-25 25-50 50-100 – 12-25 25-50 50-100
2 12-25 25-50 50-120 120-200 25-50 50-100 100-200 – 25-50 50-100 100-200
3 25-50 50-100 100-250 200-450 50-100 100-200 200-450 – 50-100 100-200 200-450
4 50-100 100-200 200-500 500-1000 100-200 200-400 400-800 800-2000 100-200 200-400 400-800
5 85-250 230-600 300-1000 600-2000 170-450 350-900 600-1800 1200-3400 170-450 350-900 600-1800
6 180-480 360-960 720-1950 1600-3300 300-750 600-1500 1200-3000 2900-5800 – – –
7 250-520 500-1050 1000-2100 2000-3600 550-1100 1100-2200 2200-4400 3000-8200 – – –

Technical data – Dimensions

Torque of ROTEX [Nm] 1) H=stroke [mm]
KTR-SI ROTEX® Max. bore [mm] Dimensions [mm]
98 Sh-A Type
size size
TKN TKmax d d2 dH DH DA l9 l10 E L LG DK SR FR
19 17 34 24 18 40 25 22 16 85,5
0 20 55 38,5 1,4 1,2 1,6
28 160 320 38 30 65 35 28,5 20 102
24 60 120 28 27 55 30 24 18 106
1 25 82 52 2,3 1,8 2,3
38 325 650 45 38 80 45 32,5 24 129,5
28 160 320 38 30 65 35 28 20 124
2 35 100 61 2,4 2,0 3,0
48 525 1050 60 51 105 56 38 28 155
38 325 650 45 38 80 45 32 24 155
3 45 120 78 2,7 2,2 3,5
55 685 1370 70 60 120 65 43 30 186
48 525 1050 60 51 105 56 38 28 194
4 55 146 100 3,7 2,5 3,8
75 1920 3840 95 80 160 85 56,5 40 241,5
55 685 1370 70 60 120 65 44 30 222,5
5 65 176 113,5 4,6 3,0 4,5
90 3600 7200 110 100 200 100 62 45 275,5
6 100 4950 9900 80 115 113 225 200 110 72 50 119 301 5,0 3,5 –
7 110 7200 14400 100 125 127 255 240 120 78 55 141 339 5,5 4,0 –

1)
The ROTEX® coupling can each be selected based on the torque of the machine (see coupling selection for ROTEX®). Torques of 98Sh-A spider

KTR-SI 2 DK T2 d Ø20 ROTEX® 28 d2 Ø25 40 Nm

Ordering
example: Type / size Type Disk spring layer KTR-SI bore Type / size ROTEX® bore Torque set

238 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR-SI FRE
Idle rotating overload system

RUFLEX®
Flange type

For legend of pictogram please refer to flapper on the cover

KTR-SI
+/- 15 %

H=stroke

z= number

SYNTEX®
Torques [Nm]
3 idle rotation elements 6 idle rotation elements 9 idle rotation elements
Size Type of element
min. max. min. max. min. max.
1T2 1000 4000 2000 8000
9 – –
1T3 2000 5500 4000 11000
1T2 1300 5000 2600 10000 3900 15000
12
1T3 2400 6700 4800 13400 7200 20100
1T2 1700 6000 3400 12000 5100 18000
15
1T3 3000 8200 6000 16400 9000 24600
2T2 5000 15000 10000 30000 15000 45000
20
2T3 10000 20000 20000 40000 30000 60000

Technical data – Dimensions SYNTEX®-NC

Bore Perm. max. bear- Weight
Dimensions [mm]
max. ing forces [kN]2) Speed3) with max.
Size 1)
[RPM] bore
Radial Axial
d D D1 D2 D3 DA l1 l2 l3 l4 l5 l6 G t t1 L dM z Pitch H=stroke [kg]
force force
9 90 135 185 200 225 260 120 110 50 188 2,5 17,5 12 25 75 203,5 12 12 12x30° 5,3 42 30,0 3300 36
12 120 173 225 215 252 290 140 128 50 215 4,5 27,5 16 30 100 236 20 15 20x18° 5,3 75 40,0 2300 54
15 150 215 270 245 282 324 170 160 50 247 4,5 27,5 20 40 120 269 20 15 20x18° 5,3 100 50,0 2050 76
20 200 285 370 330 375 460 220 200 78 322 5 33,0 20 50 150 344 24 18 24x15° 9 162,5 80,0 1550 194

1)
Other sizes available on request
2)
Bigger forces can be accepted with a stronger bearing
3)
Higher speeds possible on request, see comments on page 226
KTR-SI Compact

KTR-SI FRE 12 1T3 9 d Ø85 12000 Nm

Ordering
example: Number of idle rotation KTR-SI FRE
Type / size Type of element Torque set
elements bore

For continuously updated data please refer to our online catalogue at www.ktr.com 239
KTR-SI FRE
Idle rotating overload system

With torsionally flexible ROTEX®

For legend of pictogram please refer to flapper on the cover

120
+/- 15 %

TA
H=stroke

Torques [Nm]
3 idle rotation elements 6 idle rotation elements 9 idle rotation elements
Size Type of element
min. max. min. max. min. max.
1T2 1000 4000 2000 8000
9 – –
1T3 2000 5500 4000 11000
1T2 1300 5000 2600 10000 3900 15000
12
1T3 2400 6700 4800 13400 7200 20100
1T2 1700 6000 3400 12000 5100 18000
15
1T3 3000 8200 6000 16400 9000 24600
2T2 5000 15000 10000 30000 15000 45000
20
2T3 10000 20000 20000 40000 30000 60000

Technical data – Dimensions

ROTEX® Max. bore
Torque [Nm] Dimensions [mm] Weight
TA Speed2)
Size1) 64 Sh-D with max.
Size d d1 [Nm] [RPM]
bore [kg]
TKN TKmax D D1 DH DA l1 l2 l3 l7 l8 l9 E LG H=stroke

9 90 4500 9000 90 110 135 185 200 260 120 110 50 100 133 208 45 353 5,3 117 3300 57
12 125 12500 25000 120 125 173 225 290 290 146 130 50 140 165 245 60 445 5,3 560 2300 108
15 140 16000 32000 150 160 215 270 320 324 170 160 50 155 176 281 65 501 5,3 560 2050 142
20 180 35000 70000 200 200 285 370 420 460 220 200 78 195 227 362 85 642 9 970 1550 331

1)
Other sizes available on request
2)
Higher speeds possible on request, see comments on page 226

KTR-SI FRE 12 1T3 9 d Ø85 ROTEX® 125 d1 Ø85 12000 Nm

Ordering
example: Number of idle KTR-SI FRE ROTEX®
Type / size Type of element Type / size Torque set
rotation elements bore bore

240 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR-SI
Idle rotating overload systems

RUFLEX®
Special types

KTR-SI FRE with GEARex® and integrated brake disk

KTR-SI
KTR-SI FRE with REVOLEX® and limitation of axial backlash

SYNTEX®
KTR-SI FRE with RADEX®-N and integrated brake disk

SYNTEX®-NC

KTR-SI FRE with sprocket

KTR-SI Compact

For continuously updated data please refer to our online catalogue at www.ktr.com 241
SYNTEX®
Backlash-free overload systems

Structure and operation

zz Backlash-free, torsionally rigid zz Low-cost protection even for sim-

overload protection, suitable for ple applications
reversing drives
zz Easy assembly and torque setting
zz Disconnection of the drive in case
zz Maintenance-free
of overload
zz Insensitive to oil and grease
zz Reduction of torque peaks
zz Long service life due to small in-
zz High repeating accuracy, even
ternal loads
after a long operating period
zz Backlash-free shaft-hub-connec-
zz Easy integration of customers’
tions
components
zz Any or synchronous re-engage-
zz Compact design, low mass mo-
ment
ment of inertia
zz Automatically operative
zz Variable due to modular system

zz Special disk springs available for

special applications

SYNTEX® is an overload system with positive locking operation.

The punched disk spring is a component serving for torque trans-
e flow
Torqu mission (registered patent).

NTED
PATE

SYNTEX® SYNTEX® SYNTEX®

Overload system with mounting flange Overload system with sprocket Overload system with ROTEX® GS

242 For continuously updated data please refer to our online catalogue at www.ktr.com
SYNTEX®
Backlash-free overload systems

RUFLEX®
Operating principles
Ratchet design DK Synchronous design SK

KTR-SI
If the torque set is exceeded, a relative movement is generated If the torque set is exceeded, a relative movement is generated
between the driving and driven side. The transmittable torque is between the driving and driven side. The transmittable torque is
reduced to a minimum. reduced to a minimum.
The balls leave the indentations of the disk springs. After eliminating The balls leave the indentations of the disk springs. After eliminat-
the overload, the balls engage automatically with the next following ing the overload, the balls re-engage automatically with the disk
ball indentation of the disk springs. springs after a rotation of 360° subject to their special pitch. Driv-
ing and driven side are always placed in the same position to each
other. Other degrees of re-engagement, for example 180°, are also
possible.

SYNTEX®
Signal by limit switch or sensor in case of overload

Sensor

Shift ring Shift ring

zz Shift ring displaces

SYNTEX®-NC
axially
zz (Stroke H = 2 mm)

Mech. limit switch

KTR-SI Compact

Standard operation: In case of overload:

No signal by sensor or mechanical limit The axial movement of the shift ring activates the
switch sensor or mechanical limit switch, respectively. Limit
switch activated. The resulting signal may be used
for control operation (e. g. motor stop).

For continuously updated data please refer to our online catalogue at www.ktr.com 243
SYNTEX®
Backlash-free overload systems

Flange type

For legend of pictogram please refer to flapper on the cover

X° 360° +/- 10 %

Technical data – Dimensions

Torques [Nm] Dimensions [mm]
Max.
Synchronous design
Size Ratchet design DK speed1) Max. bore
SK
[rpm]
DK1 DK2 SK1 SK2 d D D1 D2 D3 D4 DA l1 l2 l3 l4 l5 dL L z H=stroke
20 6-20 15-30 10-20 20-65 1500 20 48 54 61,5 65 71 80 8 2 16 6 35 4,5 45 8 2
25 20-60 45-90 25-65 40-100 1500 25 60 68 80 81 89 98 8 2 17 8 39 5,5 50 8 2
35 25-80 75-150 30-100 70-180 1000 35 75 78 91 102 110 120 10 2 21 10 42 5,5 60 12 2
50 60-180 175-300 80-280 160-400 1000 50 105 108 121 142 152 162 12 2 25 13 56 6,6 70 12 2

Dimensions of hub type 4.5

Dimensions [mm] Tightening torque
Size
d1max. l6 l7 l8 L1 s Clamping screws TA [Nm]
20 20 9 3,5 23 54 3 4 x M5 8,5
25 25 11 4,0 28 61 4 4 x M6 14
35 35 10 4,0 31 70 4 4 x M6 14
50 50 12 4,0 37 82 6 4 x M6 14

Transmittable friction torques TR [Nm] (fitting tolerance H7/h6) of hub type 4.5
Size Ø12 Ø14 Ø15 Ø16 Ø17 Ø18 Ø19 Ø20 Ø22 Ø23 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50
20 45 62 71 81 92 103 115 127
25 72 83 95 107 120 133 148 179 196 213 231
35 127 139 152 165 207 237 270 323
50 238 281 311 343 394 448 486

1)
See comments on page 226

Cost-effective version

zz SYNTEX® 35 spec. with integrated flange

zz Performance range with 1 disk spring up to 200 Nm, with 2 disk springs up to
400 Nm
zz Adjustment of the flange to ambient components possible

SYNTEX® 25 d Ø20 DK1 1.0 45 Nm

Ordering
example: Type / size Bore Type [DK/SK] Hub type Torque set

244 For continuously updated data please refer to our online catalogue at www.ktr.com
 RUFLEX®
Hub type 1.0

H=stroke

KTR-SI
z= number

SYNTEX®
Hub type 4.5

SYNTEX®-NC
KTR-SI Compact

For continuously updated data please refer to our online catalogue at www.ktr.com 245
SYNTEX®
Backlash-free overload systems

With sprocket

For legend of pictogram please refer to flapper on the cover

X° 360° +/- 10 %

Technical data – Dimensions

Torque [Nm] Dimensions [mm]
Max. speed
Size Ratchet design DK Synchronous design SK Max. bore
[rpm]2)
DK1 DK2 SK1 SK2 d Standard sprocket1) D D1 D2 l1 l3 l5 L H=stroke
20 6-20 15-30 10-20 20-65 1500 20 06 B-1 (1/8 x 7/32) z = 25 48 54 61,5 8 14 33 45 2
25 20-60 45-90 25-65 40-100 1500 25 08 B -1 (1/2 x 5/16) z = 24 60 68 80 8 15 37 50 2
35 25-80 75-150 30-100 70-180 1000 35 08 B-1 (1/2 x 5/16) z = 29 75 78 91 10 19 41 60 2
50 60-180 175-300 80-280 160-400 1000 50 12 B-1 (3/4 x 7/16) z = 27 105 108 121 12 23 52 70 2

Dimensions of hub type 4.5

Dimensions [mm] Tightening torque
Size
d1max. l6 l7 l8 L1 s Clamping screws TA[Nm]
20 20 9 3,5 23 54 3 4 x M5 8,5
25 25 11 4,0 28 61 4 4 x M6 14
35 35 10 4,0 31 70 4 4 x M6 14
50 50 12 4,0 37 82 6 4 x M6 14

Transmittable friction torques TR [Nm] (fitting tolerance H7/h6) of hub type 4.5
Size Ø12 Ø14 Ø15 Ø16 Ø17 Ø18 Ø19 Ø20 Ø22 Ø23 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50
20 45 62 71 81 92 103 115 127
25 72 83 95 107 120 133 148 179 196 213 231
35 127 139 152 165 207 237 270 323
50 238 281 311 343 394 448 486

1)
z= minimum number of teeth required / other sprockets available on request
2)
See comments on page 226

Cost-effective version

zz Standard SYNTEX® with integrated belt drive

zz Available ready for assembly with the torque set
zz Reduction of number of components by integration of components
zz Available both as a ratchet and synchronous design
zz Torque setting possible while in place
zz Finish bore according to ISO fit H7, feather keyway according to
DIN 6885 sheet 1 - JS9
zz Also available with a frictionally engaged shaft-hub-connection (hub design 4.5)

SYNTEX® 25 DK1 1.0 d Ø20 08 B -1 (1/2 x 5/16), z=29 45 Nm

Ordering
example: Type / size Type [DK/SK] Hub type Bore Sprocket Torque set

246 For continuously updated data please refer to our online catalogue at www.ktr.com
 RUFLEX®
Hub type 1.0

H=stroke

KTR-SI
SYNTEX®
Hub type 4.5

SYNTEX®-NC
KTR-SI Compact

For continuously updated data please refer to our online catalogue at www.ktr.com 247
SYNTEX®
Backlash-free overload systems

With toothed belt pulley

For legend of pictogram please refer to flapper on the cover

X° 360° +/- 10 %

Hub type 1.0 Hub type 4.5

Technical data – Dimensions

Torques [Nm] Dimensions [mm]
Max. speed
Size Ratchet design DK Synchronous design SK Max. bore Toothed belt pulley
[rpm]2)
DK1 DK2 SK1 SK2 d T10 1) AT10 1) D D1 D2 l1 l3 l5 L H=stroke
20 6-20 15-30 10-20 20-65 1500 20 T10, z=24 AT10, z=24 48 54 61,5 8 14 35 45 2
25 20-60 45-90 25-65 40-100 1500 25 T10, z=30 AT10, z=30 60 68 80 8 15 39 50 2
35 25-80 75-150 30-100 70-180 1000 35 T10, z=36 AT10, z=36 75 78 91 10 19 42 60 2
50 60-180 175-300 80-280 160-400 1000 50 T10, z=48 AT10, z=48 105 108 121 12 23 56 70 2

Dimensions of hub type 4.5

Max. bore Dimensions [mm]
Size Tightening torque TA [Nm]
d1 l6 l7 l8 l9 L1 s Clamping screws
20 20 9 3,5 23 10 54 3 4 x M5 8,5
25 25 11 4,0 28 11 61 4. 4 x M6 14
35 35 10 4,0 31 13 70 4. 4 x M6 14
50 50 12 4,0 37 14 82 6 4 x M6 14

Transmittable friction torques TR [Nm] (fitting tolerance H7/h6) of hub type 4.5
Size Ø12 Ø14 Ø15 Ø16 Ø17 Ø18 Ø19 Ø20 Ø22 Ø23 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50
20 45 62 71 81 92 103 115 127
25 72 83 95 107 120 133 148 179 196 213 231
35 127 139 152 165 207 237 270 323
50 238 281 311 343 394 448 486

1)
z = minimum number of teeth required / other sizes available on request
2)
See comments on page 226

SYNTEX® 25 DK1 1.0 d Ø20 AT10, z=24 30 45 Nm

Ordering
example: Toothed belt Width of tooth.
Type / size Type [DK/SK] Hub type Bore Torque set
pulley belt pul.

248 For continuously updated data please refer to our online catalogue at www.ktr.com
SYNTEX®
Backlash-free overload systems

RUFLEX®
With backlash-free ROTEX® GS

For legend of pictogram please refer to flapper on the cover

KTR-SI
90
X° 360° +/- 10 %

Hub type 1.0 Hub type 1.0 Hub type 6.0 Hub type 4.5

H=stroke

SYNTEX®
Technical data – Dimensions
Torques [Nm] Dimensions [mm]
Max.
SYNTEX® ROTEX® GS Synchronous ROTEX® GS
Ratchet design DK speed Max. bore
size size design SK 98 Sh A-GS H=
[rpm]1)
DK1 DK2 SK1 SK2 TKN TKmax. d d1 d2 d3 D2 DH DA l1 l2 l10 E L LG LG1 stroke

SYNTEX®-NC
20 24 6-20 15-30 10-20 20-65 60 120 1500 20 20 28 28 61,5 55 80 30 70 83 18 45 100 113 2
25 28 20-60 45-90 25-65 40-100 160 320 1500 25 25 38 38 80 65 98 35 78 91 20 50 113 126 2
35 38 25-80 75-150 30-100 70-180 325 650 1000 35 35 45 48 91 80 120 45 91 105,5 24 60 136 150,5 2
50 48 60-180 175-300 80-280 160-400 525 1050 1000 50 50 62 55 121 105 162 56 111 12,6 28 70 167 182 2

Transmittable friction torques TR [Nm] (fitting tolerance H7/h6) of hub type 4.5
Size Ø12 Ø14 Ø15 Ø16 Ø17 Ø18 Ø19 Ø20 Ø22 Ø23 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50
20 45 62 71 81 92 103 115 127
25 72 83 95 107 120 133 148 179 196 213 231
35 127 139 152 165 207 237 270 323
50 238 281 311 343 394 448 486

1)
See comments on page 226
KTR-SI Compact

SYNTEX® 25 DK1 1.0 d Ø20 ROTEX® GS 28 98 ShA-GS 1.0 d2 Ø25 50 Nm

Ordering
example: ROTEX® GS
Type / size Type Hub type Bore Type / size Spider Hub type Torque set
bore

For continuously updated data please refer to our online catalogue at www.ktr.com 249
SYNTEX®-NC / KTR-SI Compact
Backlash-free overload systems

Structure and operation

The design of the backlash-free overload systems SYNTEX®-NC and KTR-SI Compact is based on a spring-preloaded and positive-locking
ball-ratchet-principle allowing for a high repeating accuracy and short reaction times. Moreover, an integrated groove ball bearing provides
for the option of direct assembly of toothed belt pulleys, special flanges or other components. Main applications are latest machine tools,
control and positioning technology as well as packaging machines and special purpose machinery.
Both systems make use of disk springs with a declining spring characteristic the preset prestress of which drops during the ratching pro-
cess. As a result driving and driven end are separated reliably from each other within some milliseconds with the wear on the components
being reduced to a minimum simultaneously.

Spring characteristic What does backlash-free mean?

Sense of rotation
Movement up to
right
F operating range The backlash-free overload sys-
tems are operated in the declin- KTR-SI KTR-SI
ing area of the disk spring. That standard Compact /
is why the torque decreases
immediately with overload.
SYNTEX®-NC

Betriebsbereich Sense of rota- Twist angle Twist angle = 0

tion left backlash-free!

Ratchet design DK
Any engagement after an overload. After eliminating the overload, the balls engage automatically with the next following ball indentation of the disk
springs.

Synchronous design SK
Synchronous engagement after an overload. After eliminating the overload, the balls re-engage automatically with the disk springs after
a rotation of 360°. Driving and driven side are always placed in the same position to each other. Other degrees of re-engagement, for example
180°, are also possible.
= The core of the backlash-free overload systems

List of components:
1. Hub with keyway to DIN (type
1.0) or with clamping ring (type
6.1)
2. Flange ring
3. Shift ring
4. Disk spring
5. Setting nut
6. Clamping ring
7. 
Balls
8. Groove ball bearing
9. Snap ring

9 8 2 7 1 3 4 5 6

250 For continuously updated data please refer to our online catalogue at www.ktr.com
SYNTEX®-NC / KTR-SI Compact
Backlash-free overload systems

RUFLEX®
Operating principle

NEW
zz Backlash-free torque transmission zz Clamping ring design easy to assemble

zz Light-weight design zz Available both as a ratchet (DK) and syn-

chronous design (SK)
zz Declining spring characteristic
zz Backlash-free shaft-hub-connection
zz Overload protection up to 265 Nm
zz In combination with the backlash-free
zz Lower mass moment of inertia

KTR-SI
ROTEX®-GS or backlash-free, torsionally
zz Large bore diameters rigid TOOLFLEX®

zz Short reaction times zz Direct assembly of toothed belt pulley, as

an example, possible (integrated groove
zz High power density ball bearing)

SYNTEX®
zz Backlash-free overload system with a zz Easy torque setting by torque scale on the
declining spring characteristic coupling

zz Solid design zz Connection flange with ball bearing

zz Accurate disengagement with high zz Hardened ratchet surfaces for a long

repeating accuracy service life

zz Accurate backlash-free torque trans- zz Backlash-free shaft-hub-connection via

mission even in case of wear taper bush

zz Shift ring with setting scale for accu- zz Can be used with the proven ROTEX®
rate torque setting GS as a shaft-to-shaft connection

SYNTEX®-NC
KTR-SI Compact

For continuously updated data please refer to our online catalogue at www.ktr.com 251
SYNTEX®-NC
Backlash-free overload systems

Hub type

NEW

For legend of pictogram please refer to flapper on the cover

X° 360° ± 10 %

Hub type 1.0 (keyway to DIN 6885) Hub type 6.1 (clamping ring)
z=number

H=stroke

Technical data – Dimensions

Max. speed Torques [Nm] Max. bore Dimensions [mm]
Size
[rpm]3) T1 T2 T3 d Dh5 D1 D2 D3 DA l1 l2 l3 l4 l5 l6 L z x dM H-stroke
25 3000 9 - 15 20 - 35 40 - 65 221) 42 50 48 56 61 5,5 11,5 9,1 2 5 23,9 33 8xM4 1,2
32 3000 25 - 38 50 - 75 100 - 150 301) 52 60 60 67 74 6 12,5 9,9 2 5 25,1 35 8xM4 1,5
42 2500 30 - 65 60 - 135 120 - 265 381) 65 72 75 83 90 7 16 11,2 2 6 31,8 43 8xM5 1,5

Dimensions of hub type 6.1

Bore d1 Dimensions [mm]
Size Weight with max. bore [kg] Mass moment of inertia2) Jtotal [kgm2]
pilot bored max. D4 DK L1 e M TA [Nm]
25 9,5 25 55 - 45 21 M6 14 0,282 0,14 x 10-3
32 13,5 32 70 - 53 27 M8 34 0,471 0,35 x 10-3
42 18,5 42 86 91,2 63 33 M10 67 0,815 0,95 x 10-3

Transmittable friction torques TR [Nm] of hub type 6.1

Size Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø36 Ø38 Ø40 Ø42
25 34 41 48 63 71 79 55 61 67 79 92 98
32 87 95 118 130 143 169 132 143 174 197 220
42 170 203 238 257 314 354 301 353 371 407 444 482

1)
Max. bore, feather keyway acc. to DIN 6885 sheet 3
2)
With maximum bore
3)
See comments on page 226

SYNTEX®-NC 32 SK 6.1 T3 d1 Ø25 120

Ordering
example: Type
Type / size Hub type Disk springs Bore Torque set
[DK/SK]

252 For continuously updated data please refer to our online catalogue at www.ktr.com
SYNTEX®-NC
Backlash-free overload systems

RUFLEX®
With backlash-free ROTEX® GS

For legend of pictogram please refer to flapper on the cover

KTR-SI
90
X° 360° ± 10 %

Hub type 2.8 Hub type 6.1

SYNTEX®
Hub type 2.9 Hub type 1.0

SYNTEX®-NC

Technical data – Dimensions

Torques [Nm] Max. Max. bore [mm] Dimensions [mm]
ROTEX ®
Size speed TA T
GS size T1 T2 T3 [rpm]1) d d1 d2 D5 DH DK DK1 DA l1 l2 l3 E e e1 LG L1 LG1 M1 A1
M
[Nm] [Nm]
25 24 9 - 15 20 - 35 40 - 65 3000 22 25 32 58 55 - 57,5 61 18 47,5 35,5 18 21 20 71,5 45 83,5 M6 14 M6 10
32 28 25 - 38 50 - 75 100 - 150 3000 30 32 35 70 65 - 69 74 21 55 37 20 27 23,8 78 53 96 M8 34 M8 25
42 38 30 - 65 60 - 135 120 - 265 2500 38 42 45 88 80 91,2 86 90 26 66 46 24 33 30,5 96 63 116 M10 67 M10 49

Transmittable friction torques TR [Nm] of hub type 6.1

Size Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø36 Ø38 Ø40 Ø42
25 34 41 48 63 71 79 55 61 67 79 92 98
32 87 95 118 130 143 169 132 143 174 197 220
42 170 203 238 257 314 354 301 353 371 407 444 482
KTR-SI Compact

1)
See comments on page 226

SYNTEX®-NC 32 SK 6.1 T3 d1 Ø25 8 2.8 d2 Ø20 120

Ordering
example: SYNTEX®-NC ROTEX® GS ROTEX® GS
Type / size Type Hub type Disk springs Hub type Torque set
bore size bore

For continuously updated data please refer to our online catalogue at www.ktr.com 253
SYNTEX®-NC
Backlash-free overload systems

With torsionally rigid TOOLFLEX® S

NEW

For legend of pictogram please refer to flapper on the cover

90
X° 360° ± 10 %

Technical data – Dimensions

Torques [Nm] Max. bore Dimensions [mm]
TOOLFLEX® Speed
Size TA
size1) T1 T2 T3 [rpm] d1 d2 D4 DH DA DK DK1 l1 L1 E e e1 LG M M1 TA1 [Nm]
[Nm]
25 38 9 - 15 20 - 35 40 - 65 3000 25 38 55 65 61 - 72,6 25,5 45 18 21 25 88 M6 14 M8 25
32 42 25 - 38 50 - 75 100 - 150 3000 32 42 70 70 74 - 76,1 30 53 24 27 27 107 M8 34 M8 25
42 45 30 - 65 60 - 135 120 - 265 2500 42 45 86 83 90 91,2 89 32 63 22,5 33 30 114 M10 67 M10 49
1)
For coupling selections see page 18 et seqq.

Special type:
zz SYNTEX®-NC with RADEX®-NC

SYNTEX®-NC 32 SK 6.1 T3 d1 Ø25 28 2.8 d2 Ø20 120

Ordering
example: Disk SYNTEX®-NC TOOLFLEX® TOOLFLEX®
Type / size Type Hub type Hub type Torque set
springs bore size bore

254 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR-SI Compact
Backlash-free overload systems

RUFLEX®
Flange type

For legend of pictogram please refer to flapper on the cover

KTR-SI
X° 360° ± 10 %

Hub type 1.0 Hub type 4.5 Hub type 1.0 Hub type 4.5
with taper bush with taper bush
Size 01 - 3 Size 01 - 3 Size 4 Size 4

SYNTEX®
H=stroke
H=stroke

Technical data – Dimensions

Torque [Nm] Dimensions [mm]
Size Speed [rpm] Bore H=

SYNTEX®-NC
T1 T2 T3 d D h5
D1 D2 DA l1 l2 l3 l4 l5 l6 L dM SW stroke
01 4000 3-14 6-28 13-56 8-20 47 56 65 70 8 5 7,5 7 12 - 40 8xM4 7 1,2
0 3000 9-35 18-70 40-140 10-301) 62 71 80 85 11 7 8,0 8 14 - 48 8xM5 7 1,5
1 2500 19-65 38-130 78-260 14-351) 75 85 95 100 14 9 10,5 9 16 - 59 8xM6 8 1,8
2 2000 35-110 80-220 160-440 18-451) 90 100 110 115 16 10 12 10 17 - 64 8xM6 10 2,0
3 1200 80-185 160-370 320-740 24-50 100 116 130 135 18 10 12 12 21 - 75 8xM8 10 2,2
4 400 230-730 460-1590 960-3100 40-75 145H7 160 186 220 7 - 24 9 38,5 46,5 119 6xM12 13 3,5

Dimensions of hub type 4.5

Bore2) Dimensions [mm]
Size
d1 D3 l7 l8 l9 l10 L1 SW1 TA [Nm]
10-20 40,5
01 26 40 42 2,8 47 7 3
19-25 42,0
0 19-30 57 31 46 49 4,0 56 10 10
19-30 57 40 4,0 10 10
1 57 60 67
32-40 64 31 3,5 8 5,9
2 32-50 73,5 29 63 68,5 4,0 73 10 10
32-50 73,5 29 78,5 85
KTR-SI Compact

3 75 4,0 10 10
55-60 89 44 78,0 86
4 60-80 123 62 119 126 7 138 16 35
1)
Max. finish bore, feather keyway acc. to DIN 6885 sheet 3
2)
For transmittable friction torques TR [Nm] of hub type 4.5 please refer to assembly instructions

KTR-SI Compact 2 DK 4.5 T2 d1 Ø40 150 Nm

Ordering
example: Type
Type / size Hub type Disk springs Bore Torque set
[DK/SK]

For continuously updated data please refer to our online catalogue at www.ktr.com 255
KTR-SI Compact FT
Backlash-free overload systems

With backlash-free ROTEX® GS

For legend of pictogram please refer to flapper on the cover

90
X° 360° ± 10 %

Hub type 1.0 Hub type 1.0 Hub type 6.0 Hub type 4.5

Technical data – Dimensions

Max. speed Torques [Nm] ROTEX® GS Max. bore Dimensions [mm]
Size
[rpm]1) T1 T2 T3 size d d1 d2 d3 DH DA l11 l13 l14 E LG LG1
01 4000 3-14 6-28 13-56 24 20 25 28 28 55 70 47 30 47 18 95 102
0 3000 9-35 18-70 40-140 28 30 30 38 38 65 85 56,5 35 54,5 20 111,5 119,5
1 2500 19-65 38-130 78-260 38 35 40 45 45 80 100 69 45 67 24 138 146
2 2000 35-110 80-220 160-440 42 45 50 55 55 95 115 74 50 73 26 150 159
3 1200 80-185 160-370 320-740 48 50 60 62 62 105 135 87 56 87 28 171 182
4 400 230-730 460-1590 960-3100 75 75 80 80 80 160 220 158,5 85 139,5 40 283,5 302,5

1)
See comments on page 226

KTR-SI Compact 1 DK T2 4.5 d1 Ø25 6.0 / d3 Ø25 150 Nm

Ordering
example: Disk ROTEX® GS hub
Type / size Type [DK/SK] KTR-SI hub type KTR-SI bore Torque set
spring type/bore

256 For continuously updated data please refer to our online catalogue at www.ktr.com
257
258
Clamping elements and precision joints

CLAMPEX® KTR clamping nuts

Types of clamping elements 260 How to mount large screw connections
Selection guide 262 easily and quickly 295
Selection 263
Example of calculation/selection 264
Calculation of hubs and technical data 265 KTR Precision joints
KTR 100 266 Selection and sizing 296
KTR 105 268 Type G and GD with plain bearing 298
KTR 130 and KTR 131 270 Type H and HD with needle bearing 299
KTR 150 272 Type GA and HA plain and needle bearing
KTR 200 and KTR 201 274 (extendable) 300
KTR 203 and KTR 206 276 Type X and XD with plain bearing
KTR 225 278 made of stainless steel 301
KTR 250 280 Type GR and HR with quick locking 302
KTR 400 282 Accessories (protection bushings) 303
KTR 603 284
KTR 620 288
KTR 700 292
Series on request 294

Internal clamping External clamping Shaft couplings Precision joints

elements elements

259
CLAMPEX® clamping elements
Types and operating description

Properties of clamping elements

Centering of hub to Centering between Axial shifting of hub

Shaft diameter Transmittable Details
Type Series shaft via the clamp- hub and shaft during assembly of
[mm] torque T [Nm] on page
ing element required clamping element

KTR100
266
17 — 1.000 260 — 3.017.100 
267
KTR 105

268
5 — 50 5 — 1.900  
269
KTR130

270
5 — 50 10 — 2.320  
271
Internal clamping elements

KTR 131

270
5 — 35 10 — 836  
271
KTR 150

272
6 — 400 2 — 178.138  
273
KTR 200

274
20 — 200 530 — 68.000  
275
KTR 201

274
20 — 200 320 — 48.800 
275

260 For continuously updated data please refer to our online catalogue at www.ktr.com
CLAMPEX® clamping elements
Types and operating description

CLAMPEX®
Centering of hub to Centering between Axial shifting of hub
Shaft diameter Transmittable torque Details
Type Series shaft via the clamp- hub and shaft during assembly of
[mm] T [Nm] on page
ing element required clamping element

KTR 203

276
18 — 400 370 — 487.000  
277
KTR 206

276
18 — 400 290 — 342.000 
277
Internal clamping elements

KTR 225

278
14 — 50 287 — 1.796 
279

Clamping nuts
KTR 250

280
6 — 130 11 — 25.000 
281
KTR 400

282
24 — 600 700 — 1.640.000  
283
KTR 603

284
External clamping elements

10 — 420 28 — 1.460.000  —
287
KTR Precision joints
KTR 620

288
13 — 700 70 — 7.394.000  —
291
Shaft couplings

KTR 700

292
10 — 100 62 — 8.350 
293

For continuously updated data please refer to our online catalogue at www.ktr.com 261
CLAMPEX®
Clamping elements

Selection guide

Selection guide for CLAMPEX® clamping elements

1. 2 3

Internal clamping sets External clamping sets Shaft couplings

Positioned between shaft and hub. Positioned on the hub/hollow Positioned on two opposing shaft
Frictional engagement is generated between internal clamping set and shaft and between shaft. Frictional engagement is ends. Frictional engagement
internal clamping set and hub. generated between shaft and is generated between shaft
hub/hollow shaft. coupling and shaft ends.

hub
Hub/
hollow
shaft


Shaft Shaft Shaft 1 Shaft 2

1. 2

Self-centering Not
Shaft and hub are centered to each other via an internal clamping set. self-centering
Additional hub centering is not required. Centering between shaft and hub
required.

Centering 

1 2

With axial shifting of Without axial shifting

hub of hub
Axial shifting of hub during as- No axial shifting of hub during
sembly of the internal clamping assembly of the internal clamping
set. Hub axially shiftable to meet set. Hub is fixed via the internal
the catalogue data is required. 1) clamping set during assembly.

before assembly before assembly

after assembly, hub axially after assembly, no axial

shifted shifting of hub

Selection of the series of clamp- Selection of the series of clamp- Selection of the series of clamp- Selection of the series of clamp- Selection of the series of clamp-
ing elements based on its geom- ing elements based on its geom- ing elements based on its geom- ing elements based on its geom- ing elements based on its geom-
etry and performance data etry and performance data etry and performance data etry and performance data etry and performance data

KTR 105 KTR 201 KTR 100 KTR 603 KTR 700
KTR 130 KTR 206 KTR 150 KTR 620
KTR 131 KTR 225
KTR 200 KTR 250
KTR 203
KTR 400

1)
Does not apply for KTR 400

262 For continuously updated data please refer to our online catalogue at www.ktr.com
CLAMPEX®
Clamping elements

Selection
Symbol Definition or explanation Symbol Definition or explanation

CLAMPEX®
σN0,2 Yield point of hub material [N/mm2] L/L1 Hub length [mm]
σW0,2 Yield point of shaft material [N/mm2] PN Surface pressure that occurs on clamping element/hub [N/mm2]
C Value C of hub design (see illustration on page 253) PW Surface pressure that occurs on clamping element/shaft [N/mm2]
d Internal diameter of clamping element [mm] CW diW/d -> Ratio of internal diameter of hollow shaft/clamping element
diw Internal diameter of hollow shaft [mm] CN D/DN -> Ratio of external diameter of clamping element/hub
D External diameter of clamping element [mm] Fa Axial force generated during operation [kN]
DN External diameter of hub required [mm] Fax Transmittable axial force [kN]
T Transmittable torque [Nm] FV Prestress [N]
TS Peak torque to be transmitted [Nm] PO Setting force for clamping element [N]
TA Screw tightening torque [Nm] PS Clamping force for clamping element [N]
B2/B3 Length of clamping element [mm] PA PO + PS = Total force for clamping element [N]

The transmission data are parameters found out by calculations. Subject to the friction coefficient variation which is due to physical proper-
ties, small deviations with the transmission figures may appear.

1. Fatigue strength and shape stability of components subject to torsion and bending load
The stress concentration figures βk for the clamping elements are worked out similar to those of hydraulic fittings. Stress concentration
factor on request.

2. Transmittable torque T
The transmittable torque T always has to be above the biggest torque peak TS, which may arise on the T ≥ TS [Nm] 2 + (Fa [kN] 
d [mm]
)2
2
joints. The torque peaks occuring with acceleration of electric motors as well as additional axial forces
Fa have to be considered.

Clamping nuts
3. Transmittable axial force Fax
The maximum transmittable axial force Fax specified in the tables has to be reduced accordingly with T [Nm}
Fax [kN]= 2  d [mm]
additional torque transmission.

4. Calculation of external diameter of hub DN

The external diameter of hub DN required depends on the hub geometry, the yield point of the hub
DN [mm] ≥ D  correcting value x
material and the surface pressure between clamping element and hub. In order to simplify the cal-
culation, the table on page 253 shows correcting values by the help of which DN can be calculated.

Those external diameters of hubs which cannot be calculated based

on the table are calculated via the following formula: Tangential stress on the internal diameter of hub
σN0.2 + PN  C (1 + CN²)
DN ≥ D  σtiN ≈ PN 
σN0.2 - PN  C (1 - CN²)  C

For clamping connections with hollow shafts the internal diameter

of hollow shaft diW required is calculated via the following formula: Tangential stress on the internal diameter of shaft
σW0.2 - 2  PW  0,8 2  PW
diw ≤ d  σW0.2
σtiW ≈ (CW² - 1)
KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 263
CLAMPEX®
Clamping elements

Example of calculation/selection

Details given:
Shaft diameter d: 50 mm
Hub material: GGG 40
Yield point of material σ0.2 250 N/mm²

Selected:
Not self-centering internal clamping element KTR 100
with d x D = 50mm x 80mm
 Surface pressure of hub taken from table on page 255 PN = 132 N/mm2

Approximate value for surface pressure of hub taken from table on

 PN = 135 N/mm2
page 253
 Hub type selected C=0,8 (value C of hub design see page 253)
 Yield point of material σ0.2 250 N/mm² Correcting values x 1.59 (page 253)
DN [mm] ≥ 80 mm  1,59  DN ≥ 127,2 mm

Use in explosive locations

The power transmission of CLAMPEX® clamping elements is based on the principle of two taper rings twisted into each other. An axial
force generated on the rings (by means of several screws) produces surface pressure inside the hub and outside the shaft which allows
for a frictionally engaged transmission of the torque. Considering all operating data (intended use) a potenial source of ignition does not
exist. That is why clamping elements are not covered by directive 94/9/EC.
Due to the aforementioned design of CLAMPEX® clamping elements a failure of components does not have to be expected. A risk only
arises if friction heat is produced with slipping of a clamping connection (improper assembly/tightening torques).

Concentricity
The concentricity of the self-centering CLAMPEX® clamping elements is between 0.02 mm and 0.08 mm. This concentricity is not re-
producible due to the slotted individual components of the clamping elements. As a result this figure merely serves for supporting with
designing.

Table of screws
Prestress FV and tightening torque TA with µtotal = 0.14
Dimension M Prestress FV [N] Tightening torque TA [Nm]
8.8 10.9 12.9 8.8 10.9 12.9
M3 2210 3110 3730 1,34 1,89 2,25
M4 3900 5450 6550 2,9 4,1 4,9
M5 6350 8950 10700 6 8,5 10
M6 9000 12600 15100 10 14 17
M8 16500 23200 27900 25 35 41
M10 26200 36900 44300 49 69 83
M12 38300 54000 64500 86 120 145
M14 52500 74000 88500 135 190 230
M16 73000 102000 123000 210 295 355
M18 88000 124000 148000 290 405 485
M20 114000 160000 192000 410 580 690
M22 141000 199000 239000 550 780 930
M24 164000 230000 276000 710 1000 1200
M27 215000 302000 363000 1050 1500 1800
M30 262000 368000 442000 1450 2000 2400

264 For continuously updated data please refer to our online catalogue at www.ktr.com
CLAMPEX®
Clamping elements

Calculation of hubs
Mounting conditions of clamping elements with value C of hub design

CLAMPEX®
C = 0,6 C = 0,8 C = 1,0

Selection table for the calculation of the external diameter of hub DN required (correcting value x)
Average yield point of material σ 0.2 in N/mm2 (more accurate stiffness figures depending on diameter as specified by the manufacturer)
Surface pressure between
150 180 200 220 250 270 300 350 400 450 600
clamping element and hub
Hub materials
GGG 40 GGG 50 GGG 60 GGG 70
Value C of GG 25 GG 30 GS 45 ST 50-2
PN [N/mm2] GG 20 GS 52 GS 60 GS 62 GS 70 Q & T steel Q & T steel
C-Wert GS 38 GTS 35 ST 37-2 C 35
AlCuMgPb ST 52-3 C 45 C 60
C = 0,6 1,28 1,25 1,20 1,18 1,15 1,14 1,12 1,10 1,09 1,08 1,06
60 C = 0,8 1,39 1,30 1,24 1,23 1,22 1,20 1,18 1,15 1,12 1,11 1,08
C = 1,0 1,52 1,42 1,36 1,32 1,28 1,25 1,22 1,18 1,16 1,14 1,10
C = 0,6 1,30 1,25 1,22 1,20 1,18 1,15 1,13 1,11 1,10 1,09 1,07
65 C = 0,8 1,44 1,35 1,30 1,28 1,24 1,22 1,20 1,16 1,14 1,12 1,09
C = 1,0 1,60 1,45 1,40 1,35 1,30 1,28 1,24 1,20 1,18 1,16 1,12
C = 0,6 1,34 1,26 1,24 1,22 1,18 1,16 1,15 1,12 1,11 1,10 1,07
70 C = 0,8 1,48 1,38 1,34 1,30 1,25 1,23 1,20 1,18 1,15 1,13 1,10
C = 1,0 1,65 1,50 1,45 1,40 1,34 1,30 1,26 1,22 1,20 1,17 1,13
C = 0,6 1,30 1,28 1,25 1,23 1,20 1,18 1,16 1,14 1,12 1,11 1,08
75 C = 0,8 1,52 1,42 1,36 1,32 1,28 1,25 1,22 1,18 1,16 1,14 1,11
C = 1,0 1,74 1,55 1,48 1,42 1,36 1,33 1,30 1,25 1,20 1,18 1,13
C = 0,6 1,39 1,31 1,28 1,25 1,21 1,20 1,18 1,15 1,13 1,11 1,08
80 C = 0,8 1,58 1,45 1,39 1,35 1,30 1,27 1,24 1,20 1,18 1,15 1,11
C = 1,0 1,81 1,61 1,53 1,46 1,39 1,36 1,31 1,26 1,22 1,20 1,14
C = 0,6 1,42 1,34 1,30 1,27 1,23 1,21 1,19 1,16 1,14 1,12 1,09
85 C = 0,8 1,63 1,49 1,42 1,38 1,32 1,29 1,26 1,22 1,19 1,16 1,12
C = 1,0 1,90 1,67 1,57 1,50 1,42 1,39 1,34 1,28 1,24 1,21 1,15

Clamping nuts
C = 0,6 1,46 1,36 1,32 1,28 1,25 1,22 1,20 1,17 1,15 1,13 1,09
90 C = 0,8 1,69 1,53 1,46 1,40 1,34 1,31 1,28 1,23 1,20 1,18 1,13
C = 1,0 2,00 1,73 1,62 1,54 1,46 1,41 1,36 1,30 1,26 1,22 1,16
C = 0,6 1,49 1,39 1,34 1,30 1,26 1,24 1,21 1,18 1,15 1,14 1,10
95 C = 0,8 1,75 1,57 1,49 1,43 1,37 1,34 1,30 1,25 1,21 1,19 1,14
C = 1,0 2,11 1,80 1,68 1,59 1,49 1,44 1,39 1,32 1,27 1,24 1,17
C = 0,6 1,53 1,41 1,36 1,32 1,28 1,25 1,22 1,19 1,16 1,14 1,11
100 C = 0,8 1,81 1,61 1,53 1,46 1,39 1,36 1,31 1,26 1,22 1,20 1,14
C = 1,0 2,24 1,87 1,73 1,63 1,53 1,48 1,41 1,34 1,29 1,25 1,18
C = 0,6 1,56 1,44 1,39 1,34 1,29 1,27 1,24 1,20 1,17 1,15 1,11
105 C = 0,8 1,88 1,66 1,56 1,50 1,42 1,38 1,33 1,28 1,24 1,21 1,15
C = 1,0 2,38 1,95 1,79 1,68 1,56 1,51 1,44 1,36 1,31 1,27 1,19
C = 0,6 1,60 1,47 1,41 1,36 1,31 1,28 1,25 1,21 1,18 1,16 1,12
110 C = 0,8 1,96 1,71 1,60 1,53 1,44 1,40 1,35 1,29 1,25 1,22 1,16
C = 1,0 2,55 2,04 1,86 1,73 1,60 1,54 1,47 1,38 1,33 1,28 1,20
C = 0,6 1,64 1,50 1,43 1,36 1,33 1,30 1,26 1,22 1,19 1,17 1,12
115 C = 0,8 2,04 1,76 1,64 1,56 1,47 1,43 1,37 1,31 1,26 1,23 1,17
C = 1,0 2,75 2,13 1,93 1,79 1,64 1,58 1,50 1,41 1,34 1,30 1,21
C = 0,6 1,69 1,53 1,46 1,40 1,34 1,31 1,28 1,23 1,20 1,18 1,13
120 C = 0,8 2,13 1,81 1,69 1,60 1,50 1,45 1,39 1,33 1,28 1,24 1,18
C = 1,0 3,00 2,24 2,00 1,84 1,69 1,61 1,53 1,43 1,36 1,31 1,22
C = 0,6 1,73 1,56 1,48 1,43 1,36 1,33 1,29 1,24 1,21 1,18 1,13
125 C = 0,8 2,24 1,87 1,73 1,63 1,53 1,48 1,41 1,34 1,29 1,25 1,18
C = 1,0 3,32 2,35 2,08 1,91 1,73 1,65 1,56 1,45 1,38 1,33 1,24
C = 0,6 1,78 1,59 1,51 1,45 1,38 1,35 1,30 1,25 1,22 1,19 1,14
130 C = 0,8 2,35 1,93 1,78 1,67 1,56 1,50 1,44 1,36 1,30 1,27 1,19
C = 1,0 3,74 2,49 2,17 1,97 1,78 1,69 1,59 1,48 1,40 1,35 1,25
C = 0,6 1,83 1,62 1,54 1,47 1,40 1,36 1,32 1,27 1,23 1,20 1,15
135 C = 0,8 2,48 2,00 1,83 1,71 1,59 1,53 1,46 1,38 1,32 1,28 1,20
C = 1,0 4,36 2,65 2,27 2,04 1,83 1,73 1,62 1,50 1,42 1,36 1,26
C = 0,6 1,88 1,66 1,56 1,50 1,42 1,38 1,33 1,28 1,24 1,21 1,15
KTR Precision joints

140 C = 0,8 2,63 2,07 1,88 1,75 1,62 1,55 1,48 1,39 1,33 1,29 1,21
C = 1,0 5,39 2,83 2,38 2,12 1,88 1,78 1,66 1,53 1,44 1,38 1,27
C = 0,6 1,94 1,69 1,59 1,52 1,44 1,40 1,35 1,29 1,25 1,22 1,16
145 C = 0,8 2,80 2,15 1,94 1,80 1,65 1,58 1,50 1,41 1,35 1,30 1,22
C = 1,0 7,68 3,05 2,50 2,21 1,94 1,82 1,69 1,55 1,46 1,40 1,28
C = 0,6 2,00 1,73 1,62 1,54 1,46 1,41 1,36 1,30 1,26 1,23 1,16
150 C = 0,8 3,00 2,24 2,0 1,84 1,69 1,61 1,53 1,43 1,36 1,31 1,23
C = 1,0 – 3,32 2,65 2,30 2,00 1,87 1,73 1,58 1,48 1,41 1,29
C = 0,6 2,06 1,77 1,65 1,57 1,48 1,43 1,38 1,31 1,27 1,24 1,17
155 C = 0,8 3,25 2,33 2,06 1,89 1,72 1,65 1,55 1,45 1,38 1,33 1,23
C = 1,0 – 3,66 2,80 2,40 2,06 1,92 1,77 1,61 1,51 1,43 1,30
C = 0,6 2,13 1,81 1,69 1,60 1,50 1,45 1,39 1,33 1,28 1,24 1,18
160 C = 0,8 3,55 2,43 2,13 1,94 1,76 1,67 1,58 1,47 1,39 1,34 1,24
C = 1,0 – 4,12 3,00 2,52 2,13 1,98 1,81 1,64 1,53 1,45 1,31
C = 0,6 2,21 1,86 1,72 1,62 1,52 1,47 1,41 1,34 1,29 1,25 1,18
165 C = 0,8 3,96 2,55 2,21 2,00 1,80 1,71 1,60 1,49 1,41 1,35 1,25
C = 1,0 – 4,80 3,23 2,65 2,21 2,04 1,86 1,67 1,55 1,47 1,33

For continuously updated data please refer to our online catalogue at www.ktr.com 265
CLAMPEX® KTR 100
Clamping elements

Not self-centering clamping element suitable for large shaft and hub tolerances

For legend of pictogram please refer to flapper on the cover

160

1)
Dimension DN: For calculation see page 251/252.

Example of application of hub type

 Sizes of clamping elements available from stock.

1)
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately.
KTR 100 50 x 80
Ordering
example: Series Size of inside diameter d Size of outside diameter D

266 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® − KTR 100

CLAMPEX®
Clamping screws DIN EN ISO 4762 - 12.9 Transmittable torque or Surface pressure between
Dimensions [mm]
µtotal=0.14 axial force clamping element Weight Stock pro-
d x D [mm]
Shaft PW Hub PN [~kg] gramme
B B1 B2 M Length Number z TA [Nm] 1) T [Nm] Fax [kN]
[N/mm2] [N/mm2]
NEW 17 x 47 26 20 17 M6 18 8 16 260 31 281 102 0,2
18 x 47 26 20 17 M6 18 8 16 280 31 270 103 0,2
19 x 47 26 20 17 M6 18 8 16 290 31 251 101 0,2 
20 x 47 26 20 17 M6 18 8 16 310 31 242 103 0,2 
22 x 47 26 20 17 M6 18 8 16 340 31 219 103 0,2 
24 x 50 26 20 17 M6 18 8 16 370 31 200 96 0,3 
25 x 50 26 20 17 M6 18 8 16 390 31 195 97 0,3 
28 x 55 26 20 17 M6 18 12 16 650 46 259 132 0,3 
30 x 55 26 20 17 M6 18 12 16 700 47 243 132 0,3 
32 x 60 26 20 17 M6 18 12 16 750 47 229 122 0,3 
35 x 60 26 20 17 M6 18 12 16 820 47 209 122 0,3 
38 x 65 26 20 17 M6 18 15 16 1100 58 238 139 0,4 
40 x 65 26 20 17 M6 18 15 16 1170 59 228 140 0,3 
42 x 75 32 24 20 M8 22 12 40 1670 80 251 141 0,6 
45 x 75 32 24 20 M8 22 12 40 1790 80 234 141 0,5 
48 x 80 32 24 20 M8 22 12 40 1900 79 219 131 0,6 
50 x 80 32 24 20 M8 22 12 40 1990 80 211 132 0,6 
55 x 85 32 24 20 M8 22 15 40 2740 100 240 155 0,6 
60 x 90 32 24 20 M8 22 15 40 2990 100 220 147 0,7 
65 x 95 32 24 20 M8 22 15 40 3240 100 203 139 0,8 
70 x 110 38 28 24 M10 25 15 78 5550 159 250 159 1,3 
75 x115 38 28 24 M10 25 15 78 5950 159 234 152 1,2 
80 x 120 38 28 24 M10 25 15 78 6350 159 219 146 1,4 
85 x 125 38 28 24 M10 25 15 78 6740 159 206 140 1,4 
90 x 130 38 28 24 M10 25 15 78 7140 159 195 135 1,5 
95 x 135 38 28 24 M10 25 18 78 9000 189 220 155 1,6 
100 x 145 44 32 26 M12 30 15 135 11600 232 237 163 2,2 
110 x 155 44 32 26 M12 30 15 135 12750 232 215 153 2,3 

Clamping nuts
120 x 165 44 32 26 M12 30 16 135 14800 247 210 153 2,4 
130 x 180 50 38 34 M12 30 20 135 20150 310 186 134 3,5 
140 x 190 50 38 34 M12 30 22 135 23850 341 190 140 3,8 
150 x 200 50 38 34 M12 30 24 135 27850 371 193 145 4,0 
160 x 210 50 38 34 M12 30 26 135 32200 403 196 150 4,4 
170 x 225 58 44 38 M14 45 22 215 40300 474 195 147 5,7 
180 x 235 58 44 38 M14 45 24 215 46600 518 201 154 6,0 
190 x 250 66 52 46 M14 45 28 215 57300 603 183 139 8,0 
200 x 260 66 52 46 M14 45 30 215 71000 710 205 157 8,2 
220 x 285 72 56 50 M16 50 26 335 93200 847 204 158 11,0 
240 x 305 72 56 50 M16 50 30 335 117300 978 216 170 12,2
260 x 325 72 56 50 M16 50 34 335 144000 1108 226 181 13,2
280 x 355 84 66 60 M18 60 32 465 177700 1269 200 158 19,2
300 x 375 84 66 60 M18 60 36 465 214100 1427 210 168 20,5
320 x 405 98 78 72 M20 70 36 660 295800 1849 213 168 29,6
340 x 425 98 78 72 M20 70 36 660 314300 1849 200 160 31,1
360 x 455 112 90 84 M22 80 36 900 413300 2296 201 159 42,2
380 x 475 112 90 84 M22 80 36 900 436300 2296 191 153 44,0
400 x 495 112 90 84 M22 80 36 900 459300 2297 181 147 46,0
420 x 515 112 90 84 M22 80 40 900 535800 2551 192 156 50,0
440 x 545 130 102 96 M24 90 40 1130 647600 2944 185 149 64,6
460 x 565 130 102 96 M24 90 40 1130 677000 2943 177 144 67,4
480 x 585 130 102 96 M24 90 42 1130 741800 3091 178 146 71,0
500 x 605 130 102 96 M24 90 44 1130 809500 3238 179 148 72,6
520 x 630 130 102 96 M24 90 45 1130 861000 3312 176 145 80
540 x 650 130 102 96 M24 90 45 1130 894000 3311 169 141 82
560 x 670 130 102 96 M24 90 48 1130 989000 3532 174 146 85
580 x 690 130 102 96 M24 90 50 1130 1067000 3679 175 147 88
600 x 710 130 102 96 M24 90 50 1130 1103800 3679 169 143 91
NEW 620 x 730 130 102 96 M24 90 52 1130 1186200 3826 171 145 93
NEW 640 x 750 130 102 96 M24 90 54 1130 1271600 3974 172 146 96
NEW 660 x 770 130 102 96 M24 90 56 1130 1359900 4121 173 148 99
KTR Precision joints

NEW 680 x 790 130 102 96 M24 90 56 1130 1401100 4121 167 144 102
NEW 700 x 810 130 102 96 M24 90 60 1130 1545400 4415 174 151 104
NEW 720 x 830 130 102 96 M24 90 60 1130 1589500 4415 169 147 107
NEW 740 x 850 130 102 96 M24 90 62 1130 1688100 4562 170 148 110
NEW 760 x 870 130 102 96 M24 90 64 1130 1789700 4710 171 150 113
NEW 780 x 890 130 102 96 M24 90 65 1130 1865500 4783 169 149 116
NEW 800 x 910 130 102 96 M24 90 66 1130 1942700 4857 168 147 118
NEW 820 x 930 130 102 96 M24 90 68 1130 2051600 5004 169 149 121
NEW 840 x 950 130 102 96 M24 90 70 1130 2163500 5151 169 150 124
NEW 860 x 970 130 102 96 M24 90 72 1130 2278300 5298 170 151 127
NEW 880 x 990 130 102 96 M24 90 74 1130 2396000 5445 171 152 129
NEW 900 x 1010 130 102 96 M24 90 75 1130 2483600 5519 169 151 132
NEW 920 x 1030 130 102 96 M24 90 76 1130 2572600 5593 168 150 135
NEW 940 x 1050 130 102 96 M24 90 78 1130 2697700 5740 169 151 138
NEW 960 x 1070 130 102 96 M24 90 80 1130 2825800 5887 169 152 140
NEW 980 x 1090 130 102 96 M24 90 81 1130 2920700 5961 168 151 143
NEW 1000 x 1110 130 102 96 M24 90 82 1130 3017100 6034 167 150 146

For continuously updated data please refer to our online catalogue at www.ktr.com 267
CLAMPEX® KTR 105
Clamping elements

Self-centering clamping element in a compact design

For legend of pictogram please refer to flapper on the cover

160

1)
Dimension DN: For calculation see page 251/252.

Example of application of hub type

KTR 105 8 x 18
Ordering
example: Series Size of inside diameter d Size of outside diameter D

268 For continuously updated data please refer to our online catalogue at www.ktr.com
CLAMPEX® KTR 105
Clamping elements

CLAMPEX® − KTR 105

CLAMPEX®
Transmittable torque or axial Surface pressure between
Dimensions [mm] Clamping screws DIN EN ISO 4762 - 12.9 µtotal=0.14
force clamping element Stock pro-
d x D [mm] Weight [~kg]
Shaft PW Hub PN gramme
B B1 M Length Number z TA [Nm] 1) T [Nm] Fax [kN]
[N/mm2] [N/mm2]
5 x 16 13,5 11 M2,5 10 3 1,2 5 2 177 55 0,01
6 x 16 13,5 11 M2,5 10 3 1,2 6 2 147 55 0,01 
6,35 x 16 13,5 11 M2,5 10 3 1,2 6 2 132 52 0,01 
7 x 17 13,5 11 M2,5 10 3 1,2 8 2 144 59 0,01 
8 x 18 13,5 11 M2,5 10 3 1,2 10 3 138 61 0,02 
9 x 20 15,5 13 M2,5 12 4 1,2 15 3 140 63 0,02 
9,53 x 20 15,5 13 M2,5 12 4 1,2 15 3 125 60 0,02
10 x 20 15,5 13 M2,5 12 4 1,2 15 3 114 57 0,02 
11 x 22 15,5 13 M2,5 12 4 1,2 18 3 113 56 0,02 
12 x 22 15,5 13 M2,5 12 4 1,2 20 3 105 57 0,02 
14 x 26 20 17 M3 16 4 2,1 35 5 105 57 0,04 
15 x 28 20 17 M3 16 4 2,1 40 5 94 51 0,04 
16 x 32 21 17 M4 16 4 4,9 70 9 132 66 0,07 
17 x 35 25 21 M4 20 4 4,9 75 9 125 61 0,09 
18 x 35 25 21 M4 20 4 4,9 80 9 119 61 0,09 
19 x 35 25 21 M4 20 4 4,9 85 9 114 62 0,08 
20 x 38 26 21 M5 20 4 9,7 150 15 153 81 0,1 
22 x 40 26 21 M5 20 4 9,7 160 15 135 74 0,1 
24 x 47 32 26 M6 25 4 16,5 250 21 154 78 0,2 
25 x 47 32 26 M6 25 4 16,5 260 21 147 78 0,2 
28 x 50 32 26 M6 25 6 16,5 440 31 198 111 0,2 
30 x 55 32 26 M6 25 6 16,5 470 31 185 101 0,3 
32 x 55 32 26 M6 25 6 16,5 500 31 173 100 0,25 
35 x 60 37 31 M6 30 8 16,5 730 42 166 97 0,35 
38 x 65 37 31 M6 30 8 16,5 800 42 155 90 0,4 
40 x 65 37 31 M6 30 8 16,5 840 42 147 90 0,4 
42 x 75 44 36 M8 35 6 40 911 43 125 70 0,7 

Clamping nuts
45 x 75 44 36 M8 35 8 40 1300 58 155 93 0,6 
48 x 80 44 36 M8 35 8 40 1824 76 191 115 0,7
50 x 80 44 36 M8 35 8 40 1900 76 183 115 0,7 
 Sizes of clamping elements available from stock.
1)
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately.

KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 269
CLAMPEX® KTR 130 und KTR 131
Clamping elements

Self-centering clamping elements with a central clamping nut for easy assembly/disassembly

For legend of pictogram please refer to flapper on the cover

160

KTR 130 KTR 131

1)
Dimension DN: For calculation see page 263/264.

Example of application of hub type

KTR 130 18 x 35
Ordering
example: Series Size of inside diameter d Size of outside diameter D

270 For continuously updated data please refer to our online catalogue at www.ktr.com
CLAMPEX® KTR 130 und KTR 131
Clamping elements

CLAMPEX® − KTR 130

CLAMPEX®
Surface pressure between clamp-
Dimensions [mm] Hexagon nut Transmittable torque or axial force
ing element Stock pro-
d x D [mm] Weight [~kg]
Width across Shaft PW gramme
B B1 TA [Nm] 1) T [Nm] Fax [kN] Hub PN [N/mm2]
flats SW [N/mm2]
5 x 14 19 15 14 10 10,1 4,0 264 96 0,02 
6 x 14 19 15 14 10 12,1 4,0 220 96 0,02 
8 x 16 22 17 17 17 23,4 5,8 179 91 0,02 
9 x 20 24 19 22 35 43,2 9,7 248 112 0,04 
10 x 20 24 19 22 35 48,6 9,7 223 112 0,05 
12 x 22 24 19 22 44 65,3 10,9 206 117 0,05 
14 x 26 28 22 27 65 93,0 13,3 178 99 0,08 
15 x 26 28 22 27 65 99,0 13,3 166 99 0,08 
16 x 26 28 22 27 65 106 13,3 156 99 0,07 
18 x 35 36 27 36 161 223 24,8 224 125 0,2 
19 x 35 36 27 36 161 235 24,8 212 125 0,2 
20 x 35 36 27 36 161 248 24,8 201 125 0,2 
22 x 42 41 30 46 250 349 31,8 197 110 0,3 
24 x 42 41 30 46 250 381 31,8 180 110 0,3 
25 x 42 41 30 46 250 397 31,8 173 110 0,3 
30 x 47 44 33 50 355 605 40,4 162 110 0,4 
32 x 55 51 38 55 490 764 47,8 166 102 0,6
35 x 55 51 38 55 490 836 47,8 151 102 0,6 
40 x 62 58 43 65 800 1329 66,5 152 98 0,8 
45 x 65 63 48 65 900 1605 71,0 142 98 0,9 
48 x 75 73 58 75 1290 2227 92,0 121 77 1,5
50 x 75 73 58 75 1290 2320 92,0 116 77 1,4 
 Sizes of clamping elements available from stock.
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately.
1)

CLAMPEX® − KTR 131

Clamping nuts
Transmittable torque or axial Surface pressure between
Dimensions [mm] Hexagon nut/counter nut
force clamping element Stock pro-
d x D [mm] Weight [~kg]
Width across Shaft PW Hub PN gramme
B B1 B2 TA [Nm] 1) T [Nm] Fax [kN]
flats SW [N/mm2] [N/mm2]
5 x 12 19 15 9 14 10 10,1 4,0 264 119 0,02 
6 x 12 19 15 9 14 10 12,1 4,0 220 119 0,02 
8 x 14 22 17 11 17 17 23,4 5,8 179 121 0,02 
10 x 18 24 19 12 22 35 48,6 9,7 221 127 0,04 
12 x 20 24 19 12 22 44 65,3 10,9 206 128 0,04 
14 x 24 28 22 15 27 65 93,0 13,3 178 107 0,08 
15 x 24 28 22 15 27 65 99,0 13,3 166 107 0,07 
16 x 24 28 22 15 27 65 106 13,3 156 107 0,07 
18 x 30 36 27 17 36 161 223 24,8 224 145 0,2 
19 x 30 36 27 17 36 161 235 24,8 212 145 0,2 
20 x 30 36 27 17 36 161 248 24,8 201 145 0,15 
22 x 38 41 30 20 46 250 349 31,8 197 122 0,35 
24 x 38 41 30 20 46 250 381 31,8 180 122 0,3 
25 x 38 41 30 20 46 250 397 31,8 173 122 0,3 
30 x 42 44 33 23 50 355 605 40,4 162 123 0,35 
32 x 50 51 38 28 55 490 764 47,8 166 112 0,55 
35 x 50 51 38 28 55 490 836 47,8 151 112 0,5 
 Sizes of clamping elements available from stock.
1)
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately. KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 271
CLAMPEX® KTR 150
Clamping elements

Not self-centering clamping element with minimum dimensions

For legend of pictogram please refer to flapper on the cover

160

1)
Dimension DN: For calculation see page 263/264.

Tolerances for d and D

d ≤ 38 mm = d h6/D H7
d ≥ 38 mm = d h8/D H8
Please consult with us!

Example of application of hub type

Up to four clamping elements can be

installed in a series.
The torques rise as follows:
1. clamping element T = Tcatalogue x 1,00
2 clamping elements T = Tcatalogue x 1,55
3 clamping elements T = Tcatalogue x 1,85
4. clamping elements T = Tcatalogue x 2,02

Clamping flanges Dimensions of clamping flanges recommended:

N1 [mm] ≥ 1,5  B

D2 [mm] = D + 12 +M

F1 [mm] = M  1,3 (with screws 8.8)

F1 [mm] = M  1,8 (with screws 10.9/12.9)

KTR 150 60 x 68
Ordering
example: Series Size of inside diameter d Size of outside diameter D

272 For continuously updated data please refer to our online catalogue at www.ktr.com
CLAMPEX® KTR 150
Clamping elements

CLAMPEX® − KTR 150

CLAMPEX®
Clamping force required for clamping Transmittable torque or Surface pressure be-
Dimensions [mm] Distance dimension A [mm]
screws µtotal=0.14 axial force tween clamping element Weight Stock pro-
d x D [mm] Clamping elements PA = PO + Shaft PW Hub PN [~kg] gramme
B B1 PO [N] PS [N] T [Nm] Fax [kN]
1 2 3 4 PS [N] [N/mm2] [N/mm2]
6x9 4,5 3,7 2,5 2,5 3,0 4,0 ** 3000 3000 2 0,67 80 53 0,001 
7 x 10 4,5 3,7 2,5 2,5 3,0 4,0 ** 5300 5300 4 1,19 121 85 0,001 
8 x 11 4,5 3,7 2,5 2,5 3,0 4,0 ** 5600 5600 5 1,25 112 82 0,002 
9 x 12 4,5 3,7 2,5 2,5 3,0 4,0 7947 6653 14600 7 1,50 119 89 0,002 
10 x 13 4,5 3,7 2,5 2,5 3,0 4,0 7063 8937 16000 10 2,00 143 110 0,002 
12 x 15 4,5 3,7 2,5 2,5 3,0 4,0 7808 8192 16000 11 1,80 110 88 0,002 
13 x 16 4,5 3,7 2,5 2,5 3,0 4,0 7007 9693 16700 14 2,20 120 97 0,002 
14 x 18 6,3 5,3 3,5 3,5 4,5 5,5 11957 14043 26000 22 3,10 112 87 0,005 
15 x 19 6,3 5,3 3,5 3,5 4,5 5,5 12106 14894 27000 25 3,30 111 88 0,005 
16 x 20 6,3 5,3 3,5 3,5 4,5 5,5 12478 14522 27000 26 3,20 102 91 0,006 
17 x 21 6,3 5,3 3,5 3,5 4,5 5,5 11678 16822 28500 32 4,10 120 90 0,006 
18 x 22 6,3 5,3 3,5 3,5 4,5 5,5 14630 18370 33000 37 3,70 102 94 0,006 
19 x 24 6,3 5,3 3,5 3,5 4,5 5,5 14186 18814 33000 40 4,20 111 88 0,008 
20 x 25 6,3 5,3 3,5 3,5 4,5 5,5 13339 19661 33000 44 4,40 110 88 0,008 
22 x 26 6,3 5,3 3,5 3,5 4,5 5,5 13689 20311 34000 50 4,50 103 87 0,007 
24 x 28 6,3 5,3 3,5 3,5 4,5 5,5 8676 25324 34000 68 5,70 118 101 0,008 
25 x 30 6,3 5,3 3,5 3,5 4,5 5,5 10190 26810 37000 75 6,00 120 100 0,010 
28 x 32 6,3 5,3 3,5 3,5 4,5 5,5 11275 28725 40000 90 6,40 115 101 0,009 
30 x 35 6,3 5,3 3,5 3,5 4,5 5,5 10211 29789 40000 100 6,70 111 95 0,012 
32 x 36 6,3 5,3 3,5 3,5 4,5 5,5 6487 33513 40000 120 7,50 117 104 0,010 
35 x 40 7 6,0 3,5 3,5 4,5 5,5 9147 40853 50000 160 9,10 115 101 0,02 
36 x 42 7 6,0 3,5 3,5 4,5 5,5 12910 43690 56600 176 9,80 120 103 0,02 
38 x 4438 x 44 77 6,06,0 3,53,5 3,53,5 4,54,5 5,55,5 1531715317 4468344683 6000060000 190190 10,0010,00 116116 100100 0,020,02 
40 x 4540 x 45 88 6,66,6 3,53,5 4,54,5 5,55,5 6,56,5 1861418614 5138651386 7000070000 230230 11,5011,50 116116 103103 0,020,02 
42 x 4842 x 48 88 6,66,6 3,53,5 4,54,5 5,55,5 6,56,5 1467814678 5532255322 7000070000 260260 12,4012,40 118118 104104 0,030,03 
45 x 5245 x 52 1010 8,68,6 3,53,5 4,54,5 5,55,5 6,5 32549 77451 110000 390 17,30 119 103 0,04 

Clamping nuts
48 x 55 10 8,6 3,5 4,5 5,5 6,5 29942 80058 110000 430 17,90 115 100 0,045 
50 x 57 10 8,6 3,5 4,5 5,5 6,5 25995 84005 110000 470 18,80 116 102 0,05 
55 x 62 10 8,6 3,5 4,5 5,5 6,5 25759 94241 120000 580 21,10 118 105 0,05 
56 x 64 12 10,4 3,5 4,5 5,5 7,0 33227 117773 151000 738 26,40 120 105 0,07
60 x 68 12 10,4 3,5 4,5 5,5 7,0 34887 125113 160000 840 28,00 119 105 0,07 
63 x 71 12 10,4 3,5 4,5 5,5 7,0 30510 132490 163000 934 29,70 120 107 0,08 
65 x 73 12 10,4 3,5 4,5 5,5 7,0 22513 137487 160000 1000 30,80 121 108 0,08 
70 x 79 14 12,2 3,5 5,0 6,5 7,5 34033 165967 200000 1300 37,10 115 102 0,11 
71 x 80 14 12,2 3,5 5,0 6,5 7,5 36043 174957 211000 1390 39,20 120 106 0,12
75 x 84 14 12,2 3,5 5,0 6,5 7,5 41267 178733 220000 1500 40,00 116 104 0,13 
80 x 91 17 15,0 4,0 6,0 6,5 8,0 65412 234588 300000 2100 52,50 116 102 0,2 
85 x 96 17 15,0 4,0 6,0 6,5 8,0 54414 257586 312000 2450 57,60 120 106 0,2 
90 x 101 17 15,0 4,0 6,0 6,5 8,0 51900 268100 320000 2700 60,00 118 105 0,2 
95 x 106 17 15,0 4,0 6,0 6,5 8,0 52145 287855 340000 3060 64,40 120 107 0,2 
100 x 114 21 18,7 5,0 6,0 7,0 9,0 64660 375340 440000 4200 84,00 119 105 0,4 
110 x 124 21 18,7 5,0 6,0 7,0 9,0 100658 349342 450000 4300 78,20 101 89 0,4 
120 x 134 21 18,7 5,0 6,0 7,0 9,0 80192 379808 460000 5100 85,00 100 90 0,5 
130 x 148 28 25,3 5,0 7,0 9,0 11,0 93177 556823 650000 8100 124,60 101 88 0,9 
140 x 158 28 25,3 6,0 7,0 9,0 11,0 89967 600033 690000 9400 134,30 101 89 0,9 
150 x 168 28 25,3 6,0 7,0 9,0 11,0 64644 655356 720000 11000 146,70 103 92 1,0
160 x 178 28 25,3 6,0 7,0 9,0 11,0 80303 774697 855000 13870 173,40 114 102 1,0
170 x 191 33 30,0 7,0 9,0 10,0 12,0 128166 973834 1102000 18525 217,90 113 101 1,5
180 x 201 33 30,0 7,0 9,0 10,0 12,0 142494 1057506 1200000 21300 236,70 116 104 1,6
190 x 211 33 30,0 7,0 9,0 10,0 12,0 111751 1138249 1250000 24200 254,70 119 107 1,7
200 x 224 38 34,8 7,0 9,0 11,0 13,0 182475 1407525 1590000 31500 315,00 120 107 2,3
210 x 234 38 34,8 7,0 9,0 11,0 13,0 100300 1489700 1590000 34761 331,10 121 109 2,5
220 x 244 38 34,8 7,0 9,0 11,0 13,0 117900 1552100 1670000 37941 344,90 120 109 2,5
230 x 257 43 39,5 7,0 10,0 12,0 14,0 168900 1851100 2020000 47307 411,90 121 108 3,4
240 x 267 43 39,5 7,0 10,0 12,0 14,0 160700 1929300 2090000 51449 428,70 121 109 3,5
250 x 280 48 44,0 7,0 10,0 12,0 16,0 191000 2239000 2430000 52245 418,00 121 108 4,7
260 x 290 48 44,0 7,0 10,0 13,0 16,0 182500 2328500 2511000 56506 434,70 121 108 4,8
KTR Precision joints

270 x 300 48 44,0 7,0 10,0 13,0 16,0 178000 2422000 2600000 61036 452,10 121 109 4,9
280 x 313 53 49,0 7,0 11,0 14,0 17,0 207800 2792200 3000000 72971 521,20 121 108 6,3
290 x 323 53 49,0 7,0 11,0 14,0 17,0 220700 2889300 3110000 77740 536,10 121 108 6,5
300 x 333 53 49,0 7,0 11,0 14,0 17,0 215000 2990000 3205000 83224 554,80 121 109 6,7
320 x 360 65 59,0 10,0 15,0 20,0 25,0 292000 3848000 4140000 114246 714,00 121 108 10,9
340 x 380 65 59,0 10,0 15,0 20,0 25,0 275000 4085000 4360000 128863 758,00 121 108 11,5
360 x 400 65 59,0 10,0 15,0 20,0 25,0 260000 4320000 4580000 141292 801,60 121 109 12,2
380 x 420 65 59,0 10,0 15,0 20,0 25,0 270000 4570000 4840000 161122 848,00 121 109 12,8
400 x 440 65 59,0 10,0 15,0 20,0 25,0 260000 4800000 5060000 178138 890,70 121 110 13,5
 Sizes of clamping elements available from stock.
** Type with slot
Other sizes on request

PA = Total force

PO = Setting forcePS = Clamping force

For continuously updated data please refer to our online catalogue at www.ktr.com 273
CLAMPEX® KTR 200 und KTR 201
Clamping elements

Self-centering clamping elements with a wide range of applications

For legend of pictogram please refer to flapper on the cover

160

KTR 200

1)
Dimension DN: For calculation see page 263/264.

Example of application of hub type

KTR 201

1)
Dimension DN:For calculation see page 263/264.

Example of application of hub type

KTR 200
105 40
8 x 65
18
Ordering
example: Baureihe
Series Size of inside diameter d Size of outside diameter D

274 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® KTR 200 und KTR 201
Clamping elements

CLAMPEX® − KTR 200 und KTR 201

CLAMPEX®
KTR 200 KTR 201

Stock programme

Stock programme
Transmittable Surface pressure Transmittable Surface pressure
Clamping screws

Weight [~kg]

Weight [~kg]
Dimensions [mm] torque or axial between clamping torque or axial between clamping
DIN EN ISO 4762 - 12.9 µtotal=0.14
dxD force element force element
[mm] TA [Nm] 1) Shaft hub Shaft hub
z T Fax T Fax
B B1 B2 B3 D1 M Length KTR KTR PW PN PW PN
No. z [Nm] [kN] [Nm] [kN]
200 201 [N/mm ] [N/mm2]
2
[N/mm ] [N/mm2]
2

20 x 47 48 42 31 26 53 M6 25 6 17 17 530 53 270 115 0,4  320 32 163 69 0,4 

22 x 47 48 42 31 26 53 M6 25 6 17 17 580 53 245 114 0,4  360 33 152 71 0,4 
24 x 50 48 42 31 26 56 M6 25 6 17 17 630 53 223 107 0,4  390 33 138 66 0,4 
25 x 50 48 42 31 26 56 M6 25 6 17 17 660 53 215 108 0,4  400 32 131 65 0,4 
28 x 55 48 42 31 26 61 M6 25 6 17 17 740 53 193 98 0,5  450 32 117 60 0,5 
30 x 55 48 42 31 26 61 M6 25 6 17 17 790 53 179 98 0,5  490 33 111 61 0,5 
32 x 60 48 42 31 26 66 M6 25 8 17 17 1150 72 229 122 0,6  690 43 137 73 0,6 
35 x 60 48 42 31 26 66 M6 25 8 17 17 1300 74 217 126 0,5  750 43 125 73 0,5 
38 x 65 48 42 31 26 71 M6 25 8 17 17 1300 68 184 107 0,6  820 43 116 68 0,6 
40 x 65 48 42 31 26 71 M6 25 8 17 17 1400 70 179 110 0,6  860 43 110 67 0,6 
42 x 75 59 51 35 30 81 M8 30 6 41 41 2000 95 200 112 1,0  1300 62 130 73 1,0 
45 x 75 59 51 35 30 81 M8 30 6 41 41 2200 98 192 115 1,0  1400 62 122 73 1,0 
48 x 80 59 51 35 30 86 M8 30 8 41 41 3200 133 246 147 1,1  1900 79 146 87 1,1 
50 x 80 59 51 35 30 86 M8 30 8 41 41 3300 132 233 146 1,1  2000 80 141 88 1,1 
55 x 85 59 51 35 30 91 M8 30 8 41 41 3600 131 210 136 1,2  2200 80 129 83 1,2 
60 x 90 59 51 35 30 96 M8 30 8 41 41 3900 130 192 128 1,2  2400 80 118 79 1,2 
65 x 95 59 51 35 30 101 M8 30 8 41 41 4300 132 180 123 1,3  2600 80 109 74 1,3 
70 x 110 71 61 46 40 119 M10 30 8 83 83 7500 214 203 129 2,2  4600 131 125 79 2,3 
75 x 115 71 61 46 40 124 M10 30 8 83 83 8000 213 189 123 2,3  5000 133 118 77 2,4 
80 x 120 71 61 46 40 129 M10 30 8 83 83 8500 213 176 117 2,4  5200 130 108 72 2,6 
85 x 125 71 61 46 40 134 M10 30 10 83 83 11400 268 209 142 2,6  7000 165 128 87 2,7 
90 x 130 71 61 46 40 139 M10 30 10 83 83 12000 267 196 136 2,7  7400 164 121 84 2,8 
95 x 135 71 61 46 40 144 M10 30 10 83 83 12600 265 185 130 2,8  7800 164 115 81 2,9 
100 x 145 80 68 52 45 155 M12 35 8 145 145 15000 300 177 122 3,9  9800 196 116 80 4,1 

Clamping nuts
110 x 155 80 68 52 45 165 M12 35 8 145 145 16500 300 161 114 4,2  10700 195 104 74 4,4 
120 x 165 80 68 52 45 175 M12 35 10 145 145 22500 375 184 134 4,5  14600 243 120 87 4,7 
130 x 180 80 68 52 45 188 M12 35 12 145 145 29000 446 202 146 5,5 19000 292 133 96 5,7
140 x 190 90 76 58 50 199 M14 40 10 210 230 32000 457 173 128 6,6 23000 329 125 92 6,9
150 x 200 90 76 58 50 209 M14 40 12 210 230 41000 547 193 145 6,9  30000 400 141 106 7,2
160 x 210 90 76 58 50 219 M14 40 12 210 230 44000 550 182 139 7,4 32000 400 133 101 7,8
170 x 225 90 76 58 50 234 M14 40 14 210 230 54500 641 200 151 8,6 39000 459 143 108 9,0
180 x 235 90 76 58 50 244 M14 40 14 210 230 57500 639 188 144 9,1 41000 456 134 103 9,5
NEW 190 x 250 90 76 58 50 259 M14 40 15 210 230 65000 684 191 145 10,6 46400 488 136 104 11,1
NEW 200 x 260 90 76 58 50 269 M14 40 15 210 230 68000 680 180 139 11,2 48800 488 129 100 11,7
 Sizes of clamping elements available from stock.
1)
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately.

KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 275
CLAMPEX® KTR 203 und KTR 206
Clamping elements

Self-centering clamping elements as a compact alternative to KTR 200/201

For legend of pictogram please refer to flapper on the cover

160

KTR 203

1)
Dimension DN: For calculation see page 263/264.

Example of application of hub type

KTR 206

1)
Dimension DN: For calculation see page 263/264.

Example of application of hub type

KTR 203 40 x 65
Ordering
example: Series Size of inside diameter d Size of outside diameter D

276 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® KTR 203 und KTR 206
Clamping elements

CLAMPEX® − KTR 203 und KTR 206

CLAMPEX®
KTR 203 KTR 206

Stock programme

Stock programme
Clamping screws Transmittable Surface pressure Transmittable Surface pressure

Weight [~kg]

Weight [~kg]
Dimensions [mm] DIN EN ISO 4762 - 12.9 torque or axial between clamping torque or axial between clamping
dxD µtotal=0.14 force element force element
[mm] z TA [Nm] 1) Shaft Hub Shaft Hub
T Fax T Fax
B B1 B2 B3 D1 M Length No. KTR KTR PW PN PW PN
[Nm] [kN] [Nm] [kN]
z 203 206 [N/mm ] [N/mm2]
2
[N/mm ] [N/mm2]
2

NEW 18 x 47 34 28 22 17 53 M6 20 6 14 17 370 41 356 136 0,3 290 32 279 107 0,3

NEW 19 x 47 34 28 22 17 53 M6 20 6 14 17 390 41 337 136 0,3 300 32 259 105 0,3
20 x 47 34 28 22 17 53 M6 20 6 14 17 410 41 320 136 0,3  320 32 250 106 0,3 
22 x 47 34 28 22 17 53 M6 20 6 14 17 450 41 290 136 0,3  350 32 226 106 0,3 
24 x 50 34 28 22 17 56 M6 20 6 14 17 490 41 265 127 0,3  390 33 211 101 0,3 
25 x 50 34 28 22 17 56 M6 20 6 14 17 510 41 255 127 0,3  400 32 200 100 0,3 
28 x 55 34 28 22 17 61,4 M6 20 6 14 17 570 41 227 116 0,3  450 32 179 91 0,4 
30 x 55 34 28 22 17 61,4 M6 20 6 14 17 610 41 212 115 0,3  490 33 170 93 0,3 
32 x 60 34 28 22 17,5 67 M6 20 8 14 17 880 55 261 139 0,4  700 44 207 111 0,3 
35 x 60 34 28 22 17,5 67 M6 20 8 14 17 960 55 238 139 0,3  760 43 188 110 0,4 
38 x 65 34 28 22 17,5 72 M6 20 8 14 17 1000 53 210 123 0,4  820 43 172 101 0,5 
40 x 65 34 28 22 17,5 72 M6 20 8 14 17 1100 55 208 128 0,4  870 44 165 101 0,4 
42 x 75 41 33 25 20 84 M8 25 8 35 41 2200 105 331 185 0,6  1700 81 256 143 0,7 
45 x 75 41 33 25 20 84 M8 25 8 35 41 2400 107 314 189 0,6  1800 80 236 141 0,7 
48 x 80 41 33,5 24 20 89 M8 25 8 35 41 2500 104 288 173 0,7 1900 79 219 131 0,8 
50 x 80 41 33,5 24 20 89 M8 25 8 35 41 2600 104 276 172 0,7  2000 80 212 133 0,8 
55 x 85 41 33,5 24 20 94 M8 25 8 35 41 2900 105 254 165 0,7  2200 80 193 125 0,9 
60 x 90 41 33,5 24 20 99 M8 25 8 35 41 3100 103 228 152 0,8  2400 80 177 118 0,9 
65 x 95 41 33,5 24 20 104 M8 25 8 35 41 3400 105 213 146 0,8  2600 80 163 112 0,9 
70 x 110 50 40 29 24 119 M10 30 8 70 83 6000 171 271 172 1,5  4600 131 208 132 1,6 
75 x 115 50 40 29 24 124 M10 30 8 70 83 6400 171 252 164 1,6  5000 133 196 128 1,7 
80 x 120 50 40 29 24 129 M10 30 8 70 83 6800 170 235 157 1,7  5300 133 183 122 1,9 
85 x 125 50 40 29 24 134 M10 30 10 70 83 9000 212 275 187 1,8  7000 165 214 146 2,0 
90 x 130 50 40 29 24 139 M10 30 10 70 83 9600 213 262 181 1,9  7400 164 202 140 2,0 

Clamping nuts
95 x 135 50 40 29 24 144 M10 30 10 70 83 10200 215 250 176 2,0 7800 164 191 134 2,3 
100 x 145 56 44 31 25,5 154 M12 30 8 115 145 12000 240 250 172 2,6  9700 194 202 139 2,8 
110 x 155 56 44 31 25,5 164 M12 30 8 115 145 13000 236 224 159 2,8 10700 195 184 131 3,1 
120 x 165 56 44 31 26 174 M12 30 9 115 145 16000 267 227 165 3,6 13100 218 186 135 3,2
130 x 180 64 52 39 34 189 M12 30 12 115 145 23000 354 212 153 4,4 19000 292 175 127 4,6 
140 x 190 68 54 39 34 199 M14 40 9 185 230 25000 357 199 147 4,9 20500 293 163 120 5,0
150 x 200 68 54 39 34 209 M14 40 10 185 230 30000 400 208 156 5,2 24500 327 170 127 5,2
160 x 210 68 54 39 34 219 M14 40 12 185 230 38800 485 236 180 5,6 31300 391 191 145 5,6
170 x 225 78 64 49 44 234 M14 40 12 185 230 41300 486 172 130 6,9 33200 391 139 105 6,5
180 x 235 78 64 49 44 244 M14 40 12 185 230 43700 486 163 125 8,5 35000 389 130 100 8,5
190 x 250 78 64 49 43,5 259 M14 40 15 185 230 57700 607 195 148 9,0 46500 489 157 119 9,0
200 x 260 78 64 49 43,5 269 M14 40 15 185 230 60700 607 185 142 9,6 49000 490 149 115 9,6
220 x 285 88 72 57 50 294 M16 40 12 290 360 77300 703 169 131 13,4 57100 519 125 97 14,0
240 x 305 88 72 57 50 314 M16 40 15 290 360 105400 878 194 153 14,5 77800 648 143 113 15,1
260 x 325 88 72 57 50 334 M16 40 18 290 360 137000 1054 215 172 16,1 101200 778 159 127 16,2
280 x 355 102 84 66 60 364 M18 50 16 400 480 160300 1145 181 143 23,4 113300 809 128 101 25,6
300 x 375 102 84 66 60 384 M18 50 18 400 480 193200 1288 190 152 25,3 136500 910 134 107 25,5
320 x 405 121 101 81 74 414 M20 50 18 580 690 269300 1683 189 149 36,9 191000 1194 134 106 37,9
NEW 340 x 425 121 101 81 74 434 M20 50 21 580 690 333800 1964 207 166 39,0 237000 1394 147 118 38,3
NEW 360 x 455 138 116 93 86 464 M22 60 18 780 930 375700 2087 179 141 54,0 264000 1467 126 99 53,3
NEW 380 x 475 138 116 93 86 484 M22 60 21 780 930 462700 2435 198 158 56,2 325000 1711 139 111 57,6
NEW 400 x 495 138 116 93 86 504 M22 60 21 780 930 487000 2435 188 152 58,9 342000 1710 132 107 60,3
 Sizes of clamping elements available from stock.
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately.
1)
KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 277
CLAMPEX® KTR 225
Clamping elements

Self-centering, combination of a hub Ø with various shaft Ø

For legend of pictogram please refer to flapper on the cover

160

1)
Dimension DN: For calculation see page 263/264.

Example of application of hub type

To fasten one size of hub on different shaft diameters

KTR 225 28 x 65
Ordering
example: Series Size of inside diameter d Size of outside diameter D

278 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® − KTR 225

CLAMPEX®
Clamping screws DIN EN ISO 4762 - 12.9 Transmittable torque or Surface pressure be-
Dimensions [mm]
µtotal=0.14 axial force tween clamping element Weight Stock
d x D [mm]
Shaft PW Hub PN [N/ [~kg] programme
B B1 B2 B3 D1 M Length Number z TA 1) [Nm] T [Nm] Fax [kN]
[N/mm2] mm2]
14 x 55 38 30 22 17 62 M8 25 4 41 287 41 457 116 0,5
16 x 55 38 30 22 17 62 M8 25 4 41 329 41 401 117 0,5 
18 x 55 38 30 22 17 62 M8 25 4 41 370 41 356 117 0,5 
19 x 55 38 30 22 17 62 M8 25 4 41 390 41 337 116 0,5 
20 x 55 38 30 22 17 62 M8 25 4 41 410 41 320 116 0,5 
22 x 55 38 30 22 17 62 M8 25 4 41 451 41 291 116 0,5 
24 x 55 38 30 22 17 62 M8 25 4 41 492 41 267 116 0,4 
25 x 55 38 30 22 17 62 M8 25 4 41 513 41 256 116 0,4 
28 x 55 38 30 22 17 62 M8 25 4 41 575 41 229 117 0,4 
30 x 55 38 30 22 17 62 M8 25 4 41 616 41 214 117 0,4 
24 x 65 38 30 22 17 72 M8 25 5 41 616 51 334 123 0,7 
25 x 65 38 30 22 17 72 M8 25 5 41 641 51 320 123 0,7 
28 x 65 38 30 22 17 72 M8 25 5 41 718 51 286 123 0,6 
30 x 65 38 30 22 17 72 M8 25 5 41 770 51 267 123 0,6 
32 x 65 38 30 22 17 72 M8 25 5 41 821 51 250 123 0,6 
35 x 65 38 30 22 17 72 M8 25 5 41 898 51 229 123 0,5 
38 x 65 38 30 22 17 72 M8 25 5 41 975 51 211 123 0,5 
40 x 65 38 30 22 17 72 M8 25 5 41 1026 51 200 123 0,5 
30 x 80 41 33 25 20 88 M8 25 7 41 1077 72 317 119 1,1
32 x 80 41 33 25 20 88 M8 25 7 41 1150 72 298 119 1,1
35 x 80 41 33 25 20 88 M8 25 7 41 1257 72 272 119 1,0
38 x 80 41 33 25 20 88 M8 25 7 41 1364 72 251 119 1,0
40 x 80 41 33 25 20 88 M8 25 7 41 1436 72 238 119 0,9 
42 x 80 41 33 25 20 88 M8 25 7 41 1509 72 227 119 0,9
45 x 80 41 33 25 20 88 M8 25 7 41 1616 72 212 119 0,9
48 x 80 41 33 25 20 88 M8 25 7 41 1723 72 198 119 0,8
50 x 80 41 33 25 20 88 M8 25 7 41 1796 72 191 119 0,8 

Clamping nuts
 Sizes of clamping elements available from stock.
1)
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately.

KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 279
CLAMPEX® KTR 250
Clamping elements

Self-centering clamping element particularly suitable for thin-walled hubs

For legend of pictogram please refer to flapper on the cover

160

1)
Dimension DN: For calculation see page 263/264.

Example of application of hub type

KTR 250 28 x 39
Ordering
example: Series Size of inside diameter d Size of outside diameter D

280 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® KTR 250
Clamping elements

CLAMPEX® − KTR 250

CLAMPEX®
Clamping screws DIN EN ISO 4762 - 12.9 Transmittable torque or Surface pressure be-

Stock pro-
Dimensions [mm]

gramme
dxD µtotal=0.14 axial force tween clamping element Weight
[mm] [~kg]
z Shaft PW Hub PN [N/
B B1 B2 B3 D1 M Length TA [Nm] 1) T [Nm] Fax [kN]
No. z [N/mm2] mm2]
6 x 14 24,5 21,5 18,5 10 25 M3 10 4 2,6 11 4 162 69 0,05 
8 x 15 29 25 21,5 11,5 27 M4 10 3 5,6 26 7 187 100 0,05 
9 x 16 30 26 22,5 14 28 M4 10 4 5,6 37 8 173 97 0,06 
10 x 16 30 26 22,5 14 29 M4 10 4 5,6 42 8 159 99 0,16 
11 x 18 30 26 22,5 13,5 32 M4 10 4 5,6 50 9 162 99 0,18 
12 x 18 30 26 22,5 13,5 32 M4 10 4 5,6 55 9 150 100 0,18 
14 x 23 30 26 22,5 14 38 M4 10 6 5,6 100 14 193 118 0,20 
15 x 24 42 36 28,5 16 44 M6 18 4 15 145 19 214 134 0,2 
16 x 24 42 36 28,5 16 44 M6 18 4 15 155 19 201 134 0,3 
NEW 17 x 25 42 36 28,5 16 45 M6 18 4 15 162 19 186 126 0,2
NEW 17 x 26 44 38 31 18 47 M6 18 4 17 180 21 184 120 0,2
18 x 26 44 38 31 18 47 M6 18 4 17 200 22 182 126 0,2 
19 x 27 44 38 31 18 48 M6 18 4 17 210 22 171 121 0,3 
20 x 28 44 38 31 18 49 M6 18 4 17 220 22 162 116 0,2 
22 x 32 51 45 38 25 54 M6 18 4 17 250 23 110 75 0,3 
24 x 34 51 45 38 25 56 M6 18 4 17 270 23 99 70 0,3 
25 x 34 51 45 38 25 56 M6 18 4 17 280 22 95 70 0,3 
28 x 39 51 45 38 25 61 M6 18 6 17 480 34 130 93 0,4 
30 x 41 51 45 38 25 62 M6 18 6 17 510 34 120 88 0,4 
32 x 43 51 45 38 25 65 M6 18 8 17 730 46 151 113 0,5 
35 x 47 56 50 43 30 69 M6 18 8 17 800 46 115 86 0,5 
38 x 50 56 50 43 30 72 M6 18 8 17 860 45 105 80 0,6 
40 x 53 56 50 43 30 75 M6 18 8 17 900 45 99 75 0,6 
42 x 55 65 57 49 32 78 M8 22 8 41 1800 86 169 129 0,9 
45 x 59 73 65 57 40 85 M8 22 8 41 1900 84 124 95 1,0 

Clamping nuts
48 x 62 78 70 62 45 87 M8 22 8 41 2000 83 102 79 1,0 
50 x 65 78 70 62 45 92 M8 22 10 41 2600 104 123 94 1,3 
55 x 71 83 75 67 50 98 M8 22 10 41 2900 105 102 79 1,5 
60 x 77 83 75 67 50 104 M8 22 10 41 3100 103 91 71 1,7 
65 x 84 83 75 67 50 111 M8 22 10 41 3400 105 85 66 1,9 
70 x 90 101 91 80 60 119 M10 25 10 83 5800 166 105 81 2,9 
75 x 95 101 91 80 60 126 M10 25 10 83 6200 165 97 77 2,3 
80 x 100 106 96 85 65 131 M10 25 12 83 8000 200 102 82 3,3 
85 x 106 106 96 85 65 137 M10 25 12 83 8500 200 96 77 3,6 
90 x 112 106 96 85 65 143 M10 25 15 83 11200 249 113 91 3,9 
95 x 120 106 96 85 65 153 M10 25 15 83 11800 248 107 84 4,5
100 x 125 114 102 89 65 162 M12 30 12 145 14600 292 119 95 5,5 
110 x 140 140 128 114 90 180 M12 30 12 145 16000 291 78 61 8,0 
120 x 155 140 128 114 90 198 M12 30 12 145 17400 290 71 55 10,5
130 x 165 140 128 114 90 208 M12 30 16 145 25000 385 87 69 11,9
 Sizes of clamping elements available from stock.
1)
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately.

KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 281
CLAMPEX® KTR 400
Clamping elements

Self-centering clamping element with the highest transmission performance

For legend of pictogram please refer to flapper on the cover

160

1)
Dimension DN: For calculation see page 263/264.

Example of application of hub type

Formula to calculate space x left for disassembly:

B1-B2
x = 2

KTR 400 100 x 145

Ordering
example: Series Size of inside diameter d Size of outside diameter D

282 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® KTR 400
Clamping elements

CLAMPEX® − KTR 400

CLAMPEX®
Standard applications in industry Applications with components subject to torsion and bending load

Stock programme
Clamping screws Transmittable Surface pressure Clamping screws Transmittable Surface pressure
Transmit-

Weight [~kg]
Dimensions [mm] DIN EN ISO 4762 - 12.9 torque or axial between clam- DIN EN ISO 4762 - 12.9 torque or axial between clamp-
table
µtotal=0.14 force ping element µtotal=0.14 force ing element
d x D 1) bending
Shaft Shaft
[mm] Hub PN moment Hub PN
Num- T 2)
Fax PW Num- TA Fax PW
B B1 B2 B3 M Length A T [Nm] [N/ M Length T [Nm] Mbperm. [N/
ber z [Nm] [kN] [N/ ber z [Nm] [kN] [N/
mm2] [Nm] mm2]
mm2] mm2]
24 x 50 51 45 41 16 M6 6 35 17 700 58 202 92 M6 6 35 14 460 38 420 230 93 0,5 
25 x 50 51 45 41 16 M6 6 35 17 730 58 194 92 M6 6 35 14 470 38 430 222 94 0,5 
28 x 55 51 45 41 16 M6 8 35 17 1100 79 233 112 M6 8 35 14 740 53 490 257 110 0,5 
30 x 55 51 45 41 16 M6 8 35 17 1180 79 217 112 M6 8 35 14 790 53 520 243 112 0,5 
32 x 60 51 45 41 16 M6 8 35 17 1270 79 206 103 M6 8 35 14 830 52 560 230 104 0,8 
35 x 60 51 45 41 16 M6 8 35 17 1390 79 188 104 M6 8 35 14 890 51 610 214 106 0,7 
38 x 65 51 45 41 16 M6 10 35 17 1880 99 216 119 M6 10 35 14 1250 66 660 240 119 1,1 
40 x 65 51 45 41 16 M6 10 35 17 1980 99 205 119 M6 10 35 14 1300 65 700 230 120 1,1 
NEW 40 x 75 51 45 41 16 M8 8 35 41 2850 143 296 149 M8 8 35 35 2030 102 700 320 142 1,1 
42 x 75 51 45 41 16 M8 8 35 41 3000 143 282 149 M8 8 35 35 2120 101 730 307 142 1,2 
45 x 75 51 45 41 16 M8 8 35 41 3250 144 266 151 M8 8 35 35 2260 100 780 289 145 1,1 
48 x 80 70 62 58 23 M8 8 55 41 3450 144 173 98 M8 8 55 35 2160 90 1700 202 101 1,5 
50 x 80 70 62 58 23 M8 8 55 41 3600 144 166 98 M8 8 55 35 2220 89 1770 196 102 1,4 
55 x 85 70 62 58 23 M8 8 55 41 3950 144 151 92 M8 8 55 35 2350 85 1950 182 98 1,5 
60 x 90 70 62 58 23 M8 10 55 41 5400 180 173 109 M8 10 55 35 3380 113 2130 202 113 1,6 
65 x 95 70 62 58 23 M8 10 55 41 5850 180 160 103 M8 10 55 35 3560 110 2310 190 109 1,7 
70 x 110 86 76 70 28 M10 10 60 83 10200 291 197 118 M10 10 60 69 6620 189 3650 222 120 3,1 
75 x 115 86 76 70 28 M10 10 60 83 10950 292 184 113 M10 10 60 69 6970 186 3920 210 117 3,3 
80 x 120 86 76 70 28 M10 12 60 83 14000 350 207 130 M10 12 60 69 9210 230 4180 231 131 3,5 
85 x 125 86 76 70 28 M10 12 60 83 15000 353 197 126 M10 12 60 69 9710 228 4440 220 129 3,6 
90 x 130 86 76 70 28 M10 12 60 83 15800 351 185 121 M10 12 60 69 10000 222 4700 210 124 3,8 
95 x 135 86 76 70 28 M10 12 60 83 16800 354 176 117 M10 12 60 69 10500 221 4960 201 122 4,0 
100 x 145 110 98 92 35 M12 12 80 145 26000 520 197 121 M12 12 80 120 16850 337 8580 219 124 6,1 
110 x 155 110 98 92 35 M12 12 80 145 28600 520 179 114 M12 12 80 120 18000 327 9440 203 118 6,6 

Clamping nuts
120 x 165 110 98 92 35 M12 14 80 145 36300 605 191 124 M12 14 80 120 23350 389 10300 214 128 7,1 
130 x 180 128 114 108 41 M14 12 90 230 46000 708 176 114 M14 12 90 190 29950 461 15300 201 119 10,0 
140 x 190 128 114 108 41 M14 14 90 230 57800 826 191 126 M14 14 90 190 37200 531 16500 214 129 10,6 
150 x 200 128 114 108 41 M14 16 90 230 70800 944 204 136 M14 16 90 190 46400 619 17700 226 139 11,2 
160 x 210 128 114 108 41 M14 16 90 230 75500 944 191 130 M14 16 90 190 48600 608 18800 214 133 11,9 
170 x 225 162 146 136 52 M16 14 110 355 95900 1128 169 114 M16 14 110 295 59100 695 32000 196 119 17,6 
180 x 235 162 146 136 52 M16 15 110 355 108800 1209 171 117 M16 15 110 295 67500 750 33900 198 122 18,5 
190 x 250 162 146 136 52 M16 16 110 355 122500 1289 173 117 M16 16 110 295 76100 801 35800 199 122 21,4 
200 x 260 162 146 136 52 M16 16 110 355 128900 1289 164 113 M16 16 110 295 78600 786 37700 192 118 22,4 
220 x 285 162 146 136 52 M16 18 110 355 171800 1562 181 120 M16 18 110 295 105000 955 41400 195 126 26,6 
240 x 305 162 146 136 52 M16 20 110 355 208000 1733 184 125 M16 20 110 295 128000 1067 45200 198 130 28,7 
260 x 325 166 150 134 55 M16 21 110 355 237000 1823 169 117 M16 21 110 295 142000 1092 51000 187 123 31,2
280 x 355 197 177 165 66 M20 18 130 690 340000 2429 174 119 M20 18 130 580 208000 1486 81300 192 125 46,8
300 x 375 197 177 165 66 M20 20 130 690 405000 2700 181 125 M20 20 130 580 252000 1680 87100 198 130 69,7
320 x 405 197 177 165 66 M20 21 130 690 453000 2831 178 121 M20 21 130 580 280000 1750 29200 196 127 60,5
340 x 425 197 177 165 66 M20 22 130 690 504900 2970 176 121 M20 22 130 580 311000 1829 98700 193 127 63,9
360 x 455 224 203 190 76 M22 21 150 930 626000 3478 169 115 M22 21 150 780 381000 2117 138500 189 121 86,8
380 x 475 224 203 190 76 M22 22 150 930 692000 3642 167 115 M22 22 150 780 420000 2211 146000 188 122 91,0
400 x 495 224 203 190 76 M22 24 150 930 795000 3975 173 121 M22 24 150 780 489000 2445 154000 194 127 95,3
420 x 515 224 203 190 76 M22 24 150 930 835000 3976 165 116 M22 24 150 780 505000 2405 161500 186 123 100
440 x 535 224 203 190 76 M22 24 150 930 875000 3977 158 112 M22 24 150 780 517000 2350 169000 178 120 105
460 x 555 224 203 190 76 M22 24 150 930 914000 3974 151 108 M22 24 150 780 530000 2304 177000 172 117 109
480 x 575 224 203 190 76 M22 28 150 930 1113000 4638 169 121 M22 28 150 780 678000 2825 184500 189 128 114
500 x 595 224 203 190 76 M22 28 150 930 1160000 4640 162 117 M22 28 150 780 692000 2768 192000 182 125 119
520 x 615 224 203 190 76 M22 30 150 930 1292000 4969 167 122 M22 30 150 780 780000 3000 200000 186 129 122,5
540 x 635 224 203 190 76 M22 30 150 930 1342000 4970 161 118 M22 30 150 780 799000 2959 207500 180 126 128
560 x 655 224 203 190 76 M22 32 150 930 1484000 5300 165 122 M22 32 150 780 893000 3189 215500 184 129 131
580 x 675 224 203 190 76 M22 32 150 930 1537000 5300 159 118 M22 32 150 780 912000 3145 223000 179 127 136
600 x 695 224 203 190 76 M22 33 150 930 1640000 5467 159 118 M22 33 150 780 972000 3240 231000 179 127 139
 Sizes of clamping elements available from stock.
KTR Precision joints

1)
External ring from size 420 x 515 without slots.
2)
These are the maximum screw tightening torques. They can be reduced by a maximum of 40 % of the above-mentioned figures with T, Fax, PW and PN decreasing proportionately.

For continuously updated data please refer to our online catalogue at www.ktr.com 283
CLAMPEX® KTR 603
Clamping elements

Three-part external clamping set for applications on hollow shafts

For legend of pictogram please refer to flapper on the cover

160

Tolerances for dw
For dw from 10 to 30 mm H6 / j6
For dw from 31 to 50 mm H6 / h6
For dw from 51 to 80 mm H6 / g6
For dw from 81 to 500 mm H7 / g6
Bigger tolerances are generally possible! Please consult with us!

Example of application of hub type

KTR 603 44 x 80
Ordering
example: Series Size of inside diameter d Size of outside diameter D

284 For continuously updated data please refer to our online catalogue at www.ktr.com
CLAMPEX® KTR 603
Clamping elements

CLAMPEX® − KTR 603

CLAMPEX®
Surface pressure
Shaft Transmittable torque or Clamping screws DIN EN ISO 4014 - 10.9
Dimensions [mm] of clamping ele- Weight Stock
d x D [mm] diameter axial force µtotal=0.10
ment/hollow shaft [~kg] programme
dw [mm]
T [Nm] Fax [kN] B B1 B2 d1 M Length Number z TA [Nm] PH [N/mm2]
10 28 6
14 x 38 11 38 7 14,5 11 9 24 M5 10
4 3,5 388 0,1 
12 50 8
12 50 8
16 x 41 13 70 11 18,5 15 11 26 M5 14
5 4 310 0,2 
14 90 13
19 180 19
24 x 50 20 210 21 22,5 19 14 36 M5 18
6 5 286 0,2 
21 250 24
24 310 26
30 x 60 25 340 27 24,5 21 16 44 M5 18
6 6 233 0,3 
26 380 29
28 460 33
36 x 72 30 590 39 27 23 18 52 M6 20 5 12 307 0,4 
31 630 41
32 630 39
44 x 80 35 780 45 29 25 20 61 M6 22 7 12 317 0,6 
36 860 48
38 940 49
50 x 90 40 1100 55 31 27 22 70 M6 22 8 12 289 0,8 
42 1300 62
42 1200 57
55 x 100 45 1500 67 34 30 23 75 M6 25 8 12 252 1,1 
48 1900 79
48 1800 75
62 x 110 50 2200 88 34 30 23 86 M6 25 10 12 279 1,3 
52 2400 92

Clamping nuts
50 2000 80
68 x 115 55 2500 91 34 30 23 86 M6 25 10 12 255 1,4 
60 3100 103
55 2500 91
75 x 138 60 3200 107 37,5 32 25 100 M8 30 7 30 273 1,8 
65 3900 120
60 3200 107
80 x 145 65 3900 120 37,5 32 25 100 M8 30 7 30 256 2,6 
70 4600 131
65 4800 148
85 x 155 70 6100 174 44,5 39 30 114 M8 35 10 30 285 3,9
75 7400 197
65 4700 145
90 x 155 70 6000 171 44,5 39 30 114 M8 35 10 30 217 3,8 
75 7200 192
70 6900 197
100 x 170 75 7500 200 49,5 44 34 124 M8 35 12 30 227 4,7 
80 9000 225
75 7200 192
110 x 185 80 9000 225 56,5 50 39 136 M10 40 9 59 215 6,0 
85 11000 259
80 8500 213
115 x 188 85 10000 235 56,5 50 39 141 M10 40 9 59 209 5,0
90 12000 267
80 10500 263
120 x 215 85 13200 311 58,5 52 42 160 M10 40 12 59 271 5,9
90 14400 320
85 11000 259
125 x 215 90 13000 289 58,5 52 42 160 M10 40 12 59 222 8,5 
95 15000 316
KTR Precision joints

90 13700 304
130 x 215 95 15800 333 58,5 52 42 160 M10 40 12 59 227 9,0
100 18200 364
95 15000 316
140 x 230 100 17000 340 67,5 60 46 175 M12 45 10 100 209 11
105 20000 381
 Sizes of clamping elements available from stock.
Other sizes on request

For continuously updated data please refer to our online catalogue at www.ktr.com 285
 CLAMPEX® KTR 603
Clamping elements

Three-part external clamping set for applications on hollow shafts

CLAMPEX® − KTR 603

Surface pressure
Shaft diam- Transmittable torque or Clamping screws DIN EN ISO 4014 - 10.9
Dimensions [mm] of clamping ele- Weight Stock pro-
d x D [mm] eter dw axial force µtotal=0.10
ment/hollow shaft [~kg] gramme
[mm]
T [Nm] Fax [kN] B B1 B2 d1 M Length Number z TA [Nm] PH [N/mm2]
105 20000 381
155 x 265 110 23000 418 71,5 64 50 192 M12 50 12 100 212 15
115 26000 452
110 22500 409
NEW 160x 265 115 25500 443 71,5 64 50 192 M12 50 12 100 204 14
120 28600 477
115 36000 626
165 x 290 120 39000 650 81 71 56 210 M16 60 8 250 269 24
125 44000 704
120 31700 528
NEW 170 x 290 125 35800 573 81 71 56 210 M16 60 8 250 216 24
130 40000 615
125 40000 640
175 x 300 130 44000 677 81 71 56 220 M16 60 8 250 253 16
135 49000 726
130 36800 566
NEW 180 x 300 135 42000 622 81 71 56 220 M16 60 8 250 211 16
140 46000 657
135 55000 815
185 x 330 140 60000 857 96 86 71 236 M16 65 10 250 231 35
145 65000 897
140 53300 761
NEW 190 x 330 145 58500 807 96 86 71 236 M16 65 10 250 201 35
150 63500 847
140 66000 943
195 x 350 150 76000 1013 96 86 71 246 M16 65 12 250 259 38
155 82000 1058
150 73700 983
200 x 350 155 79800 1030 96 86 71 246 M16 65 12 250 240 41
160 85800 1073
160 95000 1188
220 x 370 165 102000 1236 114 104 88 270 M16 80 15 250 216 54
170 110000 1294
170 120000 1412
240 x 405 180 140000 1556 121,5 109 92 295 M20 80 12 490 239 67
190 160000 1684
180 160000 1778
NEW 250 x 405 190 180000 1895 120,5 108 92 295 M20 85 14 490 263 64
200 200000 2000
190 165000 1737
260 x 430 200 185000 1850 132,5 120 103 321 M20 90 14 490 225 82
210 204000 1943
 Sizes of clamping elements available from stock.
Other sizes on request

286 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® KTR 603
Clamping elements

CLAMPEX® − KTR 603

CLAMPEX®
Surface pressure
Shaft diam- Transmittable torque or Clamping screws DIN EN ISO 4014 - 10.9
Dimensions [mm] of clamping ele- Weight Stock pro-
d x D [mm] eter dw axial force µtotal=0.10
ment/hollow shaft [~kg] gramme
[mm]
T [Nm] Fax [kN] B B1 B2 d1 M Length Number z TA [Nm] PH [N/mm2]
210 216000 2057
280 x 460 220 245000 2227 146,5 134 114 346 M20 100 16 490 217 102
230 270000 2348
230 274000 2383
300 x 485 240 296000 2467 154,5 142 122 364 M20 100 18 490 209 118
245 316000 2580
240 311000 2592
320 x 520 250 340000 2720 154,5 142 122 386 M20 100 20 490 219 131
260 375000 2885
250 352000 2816
NEW 330 x 520 260 385000 2962 154,5 142 122 386 M20 100 22 490 224 126,1
270 420000 3111
250 389000 3112
340 x 570 260 422000 3246 168,5 156 134 408 M20 110 24 490 227 186
270 459000 3400
270 443000 3281
NEW 350 x 580 280 480000 3429 174,5 162 140 432 M20 110 24 490 212 195
285 500000 3509
280 462000 3300
360 x 590 290 500000 3448 174,5 162 140 432 M20 110 24 490 204 204
300 530000 3533
290 570000 3931
NEW 380 x 645 300 610000 4067 183 168 144 458 M24 120 20 840 224 239
310 660000 4258
300 625000 4167
NEW 390 x 660 310 670000 4323 183 168 144 468 M24 120 21 840 229 260
320 720000 4500

Clamping nuts
315 671000 4260
NEW 400 x 680 320 695000 4344 183 168 144 480 M24 120 21 840 222 280
330 745000 4515
330 782000 4739
NEW 420 x 690 340 841000 4947 203 188 164 504 M24 130 24 840 211 316
350 902000 5154
340 805000 4735
NEW 440 x 750 350 861000 4920 217 202 177 527 M24 140 24 840 190 408
360 920000 5111
360 1000000 5556
NEW 460 x 770 370 1073000 5800 217 202 177 547 M24 140 28 840 210 420
380 1141000 6005
380 1175000 6184
NEW 480 x 800 390 1250000 6410 228 213 188 570 M24 140 30 840 206 505
400 1312000 6560
400 1314000 6570
NEW 500 x 850 410 1382000 6741 230 213 188 590 M27 150 24 1250 205 575
420 1460000 6952
 Sizes of clamping elements available from stock.
Other sizes on request

KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 287
CLAMPEX® KTR 620
Clamping elements

Two-part external clamping set for applications on hollow shafts

For legend of pictogram please refer to flapper on the cover

160

Tolerances for dw
dw ≤ Ø 160 = h6/H7
dw > Ø 160 = g6/H7
Bigger tolerances are generally possible! Please consult with us!

Example of application of hub type

KTR 620 55 x 100

Ordering
example: Series Size of inside diameter d Size of outside diameter D

288 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® KTR 620
Clamping elements

CLAMPEX® − KTR 620

CLAMPEX®
Weight [~kg]
Surface pressure

Stock pro-
Shaft Transmittable torque or Clamping screws DIN EN ISO 4017 - 12.91)

gramme
Dimensions [mm] of clamping ele-
d x D ­[mm] diameter dw axial force µtotal=0.10
ment/hollow shaft
[mm]
T [Nm] Fax [kN] B B1 B2 d1 M Length Number z TA [Nm] PH [N/mm2]
13 70 11
16 x 41 19,5 15,3 13,5 28 M6 12 3 13 254 0,1
14 90 13
15 80 11
NEW 18 x 44 19,5 15,3 13,5 30 M6 12 4 13 222 0,1
16 110 14
17 150 18
20 x 47 19,5 18,45 13,5 32 M6 12 4 13 274 0,1 
18 175 19
19 165 17
24 x 50 20 215 22 22 18,22 16 36 M6 16 5 13 243 0,2 
22 280 25
20 200 20
NEW 26 x 51,5 22 260 24 22 18,05 16 38 M6 16 5 13 238 0,2
24 330 28
24 370 31
30 x 60 25 420 34 24 20,26 18 44 M6 16 6 13 255 0,3 
26 465 36
27 480 36
36 x 72 30 650 43 27,5 22,1 20 52 M8 20 5 30 250 0,5 
33 835 51
27 480 36
38 x 72 30 645 43 27,5 22,1 20 52 M8 20 5 30 240 0,5 
33 765 46
40 x 80 34 830 49 29,5 24,22 22 61 M8 20 6 30 209 0,6 
35 770 44
44 x 80 29,5 24,22 22 61 M8 20 6 30 192 0,6 
37 880 48
38 1130 59
50 x 90 40 1260 63 31,5 26,1 23,5 68 M8 20 8 30 212 0,8 

Clamping nuts
42 1400 67
42 1300 62
55 x 100 45 1600 71 34,5 29 26 72 M8 20 8 30 195 1,1 
48 1900 79
48 1700 71
60 x 110 50 1950 78 34,5 29,25 26 80 M8 20 9 30 191 1,3 
52 2160 83
48 1700 71
62 x 110 50 1950 78 34,5 29,25 26 80 M8 20 9 30 189 1,3 
52 2160 83
50 1900 76
68 x 115 55 2500 91 35 29,4 26 86 M8 20 9 30 206 1,3 
60 3150 105
55 2700 98
75 x 138 60 3400 113 37,5 30,7 27 100 M10 25 10 60 211 2,3 
65 4100 126
60 3300 110
80 x 141 65 4100 126 37,5 31,1 27 104 M10 25 10 60 215 2,3 
70 4950 141
65 5500 169
NEW 85 x 155 70 6400 183 44,5 38,2 34 114 M10 25 11 60 216 3,2
75 7300 195
65 5500 169
90 x 155 70 6600 189 44,5 38,2 34 114 M10 25 11 60 223 3,2 
75 7900 211
70 6200 177
NEW 95 x 170 75 7400 197 50 43,45 39 124 M10 30 14 60 182 4,3
80 8600 215
70 6200 177
100 x 170 75 7400 197 50 43,45 39 124 M10 30 14 60 176 4,3 
KTR Precision joints

80 8600 215
80 10500 263
NEW 105 x 185 85 11800 278 56,5 49,1 43,5 136 M12 35 12 100 208 5,8
90 13700 304
80 10500 263
110 x 185 85 11800 278 56,5 49,1 43,5 136 M12 35 12 100 202 5,8 
90 13700 304
85 12500 294
NEW 115 x 197 90 14100 313 60,5 53 48 147 M12 35 14 100 193 6,9
95 16000 337
85 12500 294
120 x 197 90 14100 313 60,5 53 48 147 M12 35 14 100 189 6,9
95 16000 337
 Sizes of clamping elements available from stock.
1)
DIN EN ISO 4017-10.9 for size 16 x 41 to 20 x 47

For continuously updated data please refer to our online catalogue at www.ktr.com 289
 CLAMPEX® KTR 620
Clamping elements

Two-part external clamping set for applications on hollow shafts

CLAMPEX® − KTR 620

Weight [~kg]
Surface pressure

Stock pro-
Shaft Transmittable torque or Clamping screws DIN EN ISO 4017 - 12.9

gramme
dxD Dimensions [mm] of clamping ele-
diameter dw axial force µtotal=0.10
[mm] ment/hollow shaft
[mm]
T [Nm] Fax [kN] B B1 B2 d1 M Length Number z TA [Nm] PH [N/mm2]
90 14500 322
125 x 215 95 16600 349 61 53,4 48 158 M12 35 14 100 196 8,7 
100 18800 376
95 17000 358
NEW 130 x 215 100 18400 368 61 53,4 48 158 M12 35 14 100 187 9,4
110 22000 400
95 18400 387
130 x 230 100 20800 416 66,5 57,5 51 165 M14 40 12 160 213 10,8 
110 26200 476
95 18400 387
NEW 135x 230 100 20800 416 66,5 57,5 51 165 M14 40 12 160 209 10,8
110 26200 476
100 19900 398
140 x 230 105 22200 423 67 57,8 51 172 M14 40 12 160 207 10,3
115 27800 483
110 27000 491
NEW 150 x 263 120 32000 533 71 62,2 55 186 M14 40 14 160 202 15,2
125 36200 579
110 27000 491
155 x 263 120 32000 533 71 62,2 55 186 M14 40 14 160 199 15,2
125 36200 579
120 39000 650
NEW 160 x 290 130 48000 738 78,5 68,5 61 198 M16 45 12 250 215 21,5
135 51000 756
120 39000 650
165 x 290 130 48000 738 78,5 68,5 61 198 M16 45 12 250 212 21,5
135 51000 756
130 46500 715
NEW 170 x 300 140 53000 757 79 68,9 61 208 M16 50 14 250 212 22,5
145 59000 814
130 46500 715
175 x 300 140 53000 757 79 68,9 61 208 M16 50 14 250 209 22,5 
145 59000 814
140 66000 943
NEW 180 x 320 150 76000 1013 95 85 77,5 222 M16 50 16 250 210 32,7
155 83000 1071
140 66000 943
185 x 320 150 76000 1013 95 85 77,5 222 M16 50 16 250 207 32,7
155 83000 1071
150 82000 1093
NEW 190 x 340 160 91000 1138 98 87,7 77,5 238 M16 50 16 250 225 36,3
165 102000 1236
150 82000 1093
NEW 195 x 340 160 91000 1138 98 87,7 77,5 238 M16 50 16 250 222 36,3
165 102000 1236
150 82000 1093
200 x 340 160 91000 1138 98 87,7 77,5 238 M16 50 16 250 219 36,3
165 102000 1236
 Sizes of clamping elements available from stock.

290 For continuously updated data please refer to our online catalogue at www.ktr.com
 CLAMPEX® KTR 620
Clamping elements

CLAMPEX® − KTR 620

CLAMPEX®
Weight [~kg]
Surface pressure

Stock pro-
Shaft Transmittable torque or Clamping screws DIN EN ISO 4017 - 12.92)

gramme
dxD Dimensions [mm] of clamping ele-
diameter dw axial force µtotal=0.10
[mm] ment/hollow shaft
[mm]
T [Nm] Fax [kN] B B1 B2 d1 M Length Number z TA [Nm] PH [N/mm2]
160 105000 1313
220 x 370 170 122000 1435 120 107,55 96,5 268 M20 60 15 480 205 53
180 138000 1533
170 125000 1471
240 x 405 180 145000 1611 123,5 111,1 98 288 M20 60 16 480 214 66
200 182000 1820
190 165000 1737
260 x 430 200 190000 1900 138 125,3 110,5 312 M20 60 16 480 202 82
220 238000 2164
210 220000 2095
280 x 460 220 245000 2227 152,5 140 121 334 M20 60 18 480 193 103
240 300000 2500
220 297000 2700
300 x 485 230 330000 2870 159 139,8 124 360 M24 70 16 840 205 120
250 399000 3192
240 331000 2758
320 x 520 250 365000 2920 160,5 141,6 124 380 M24 70 18 840 190 138
270 437000 3237
250 429000 3432
340 x 570 260 469000 3608 177,5 158,4 139 402 M24 70 18 840 195 189
280 556000 3971
270 545000 4037
360 x 590 280 592000 4229 182 163 143 424 M24 70 20 840 216 207
290 694000 4786
290 704000 4855
NEW 390 x 650 300 760000 5067 191 169,2 148 454 M27 70 18 1250 216 249

Clamping nuts
320 879000 5494
320 827000 5169
NEW 420 x 670 330 876000 5309 208,4 186,4 166 486 M27 70 20 1250 184 285
350 1000000 5714
340 1117000 6571
NEW 440 x 710 350 1190000 6800 220 198 179 506 M27 70 21 1250 222 343
370 1345000 7270
360 1306000 7256
NEW 460 x 750 370 1386000 7492 223 201 179 534 M27 70 21 1250 230 387
390 1554000 7969
370 950000 5135
NEW 470 x 705 380 1000000 5263 241,6 219,6 200 538 M27 70 21 1250 151 340
400 1150000 5750
380 1557000 8195
NEW 480 x 770 390 1648000 8451 247 223 201 552 M30 100 21 1650 223 449
410 1818000 8868
400 1653000 8265
NEW 500 x 820 410 1725000 8415 241 217 198 572 M30 100 24 1650 214 515
430 1915000 8907
430 2048000 9526
NEW 530 x 850 440 2154000 9791 262,3 238,3 216 606,5 M30 100 24 1650 208 585
460 2374000 10322
450 2306000 10249
NEW 560 x 885 460 2419000 10517 266 242 220 632 M30 100 24 1650 212 636
480 2654000 11058
470 2735000 11638
NEW 590 x 950 480 2863000 11929 281,5 257,5 236 664 M30 100 28 1650 211 805
500 3128000 12512
500 3150000 12600
NEW 620 x 960 520 3396000 13062 307 283 258 706 M30 100 28 1650 201 853
KTR Precision joints

540 3689000 13663

530 3636000 13721
NEW 660 x 1020 550 3942000 14335 319 293 267 748 M33 130 28 2250 199 993
570 4261000 14951
560 4189000 14961
NEW 700 x 1085 580 4520000 15586 318,5 292,5 263 788 M33 130 28 2250 187 1112
600 4863000 16210
600 5281000 17603
NEW 750 x 1100 620 5672000 18297 346 320 280 850 M33 130 32 2250 202 1111
650 6287000 19345
640 6091000 19034
NEW 800 x 1230 660 6511000 19730 359 333 296 900 M33 130 32 2250 202 1589
700 7394000 21126
 Sizes of clamping elements available from stock.
2)
DIN EN ISO 4014- 12.9 for size 660 x 1020 to 800 x 1230

For continuously updated data please refer to our online catalogue at www.ktr.com 291
CLAMPEX® KTR 700
Clamping elements

Rigid shaft coupling to connect two shaft ends

NEW

For legend of pictogram please refer to flapper on the cover

160

Example of application

KTR 700 35 x 75
Ordering
example: Series Size of inside diameter d Size of outside diameter D

292 For continuously updated data please refer to our online catalogue at www.ktr.com
CLAMPEX® KTR 700
Clamping elements

CLAMPEX® − KTR 700

CLAMPEX®
Surface pressure of
Clamping screws DIN EN ISO 4762 - 12.9
Dimensions [mm] Transmittable torque or axial force clamping element/ Weight Stock pro-
d x D ­[mm] µtotal=0.14
hollow shaft [~kg] gramme
B B1 B2 B3 M Length Number z TA [Nm] T [Nm] Fax [kN] PW [N/mm2]
10 x 35 42 38 36 15 M4 30 6 5,5 62 12 219 0,2
11 x 35 42 38 36 15 M4 30 6 5,5 66 12 193 0,2
12 x 35 42 38 36 15 M4 30 6 5,5 72 12 177 0,2
14 x 35 42 38 36 15 M4 30 6 5 76 11 137 0,2
15 x 45 56 50 47 15 M6 45 4 17 160 21 252 0,4
16 x 45 56 50 47 15 M6 45 4 17 170 21 235 0,4
17 x 45 56 50 47 15 M6 45 4 17 180 21 220 0,4 
18 x 50 56 50 47 15 M6 45 4 17 190 21 207 0,5
19 x 50 56 50 47 15 M6 45 4 17 200 21 196 0,4
20 x 50 56 50 47 15 M6 45 4 17 220 22 195 0,4 
22 x 55 66 60 57 18 M6 55 6 17 360 33 219 0,5
24 x 55 66 60 57 18 M6 55 6 17 390 33 200 0,6
25 x 55 66 60 57 18 M6 55 6 17 400 32 189 0,6 
28 x 60 66 60 57 18 M6 55 6 17 390 28 147 0,8
30 x 60 66 60 57 18 M6 55 6 17 420 28 138 0,7 
32 x 75 83 75 72 20 M8 70 4 41 610 38 158 0,1
35 x 75 83 75 72 20 M8 70 4 41 670 38 145 1,3 
38 x 75 83 75 72 20 M8 70 4 41 730 38 134 1,2
40 x 75 83 75 72 20 M8 70 4 41 760 38 126 1,2 
42 x 85 93 85 81 22 M8 80 6 41 1170 56 160 1,8
45 x 85 93 85 81 22 M8 80 6 41 1260 56 150 1,7
48 x 90 93 85 81 22 M8 80 6 41 1360 57 142 1,9
50 x 90 93 85 81 22 M8 80 6 41 1400 56 135 1,8 
55 x 95 93 85 81 22 M8 80 8 41 2000 73 159 2,0
60 x 100 93 85 81 22 M8 80 8 41 2260 75 151 2,2 
65 x 105 93 85 81 22 M8 80 8 41 2500 77 143 2,6
70 x 115 110 100 96 35 M10 80 8 83 3300 94 102 4,1

Clamping nuts
75 x 120 110 100 96 35 M10 80 8 83 3500 93 94 4,3
80 x 125 110 100 96 35 M10 80 7 75 3900 98 92 4,5
90 x 135 110 100 96 35 M10 80 8 75 5100 113 95 5,2
100 x 158 132 120 116 40 M12 100 8 130 8350 167 111 6,0
 Sizes of clamping elements available from stock.

KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 293
CLAMPEX®
Clamping elements

Series on request

SPH Clamping sleeve

Self-centering
zz Fast assembly and disassembly via one screw only
zz Suitable for small hub dimensions
zz Applications: sprockets, toothed belt pulleys that are mounted on the shaft end
zz Please order dimension sheet M548658

SPB Clamping sleeve

Self-centering
zz Assembly via one central nut
zz Suitable for small hub dimensions
zz Applications: medical equipment, measuring and control technology, small gearboxes
zz Please order dimension sheet M548677

KTR 401

Self-centering, short design

zz Clamping element for highest load
zz Specifically suitable for vibratory torques
zz Typical applications: flywheels, belt drums
zz Smaller dimensions than with KTR 400
zz Please order dimension sheet M367699

KTR 125 und KTR 125.1

KTR 125 KTR 125.1

Not self-centering, Not self-centering,
short design long design

zz Clamping element for applications with low demands

zz Very easy assembly
zz Please order dimension sheet M367700

294 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR Clamping nuts

Large scew connections for easy and quick assembly

CLAMPEX®
Clamping nuts
KTR clamping nuts
Dimensions [mm] Thrust bolt item 2 Property class 8.8 screw pos. 1 Property class 10.9 screw pos. 1
Size Tightening torque Tightening torque
D DT B B1 s k DIN EN ISO 4762 No. z Prestress [N] Prestress [N]
* [Nm] * [Nm]
M24 x 3,0 52 39 36,0 20 3,0 1-2 M8 8 21 174000 30 249000
M27 x 3,0 57 42 41,0 25 3,0 1-2 M8 9 24 224000 30 280000
M30 x 3,5 65 48 43,0 25 3,0 1-2 M10 8 41 274000 60 401000
M33 x 3,5 68 51 48,0 30 3,0 1-2 M10 9 45 338000 60 451000
M36 x 4,0 80 58 50,0 30 3,0 1-2 M12 8 71 396000 105 586000
M42 x 4,5 86 64 55,0 35 3,0 1-2 M12 10 78 544000 105 732000
M48 x 5,0 90 72 60,0 40 3,0 1-2 M12 11 94 721000 105 806000
M52 x 5,0 100 79 66,5 42 4,5 1-2 M12 13 95 862000 105 952000
M56 x 5,5 108 83 75,5 45 4,5 1-2 M16 9 210 1001000 250 1192000
M60 x 5,5 112 86 80,5 48 4,5 1-2 M16 10 215 1139000 250 1325000
M64 x 6,0 120 92 84,0 52 8,0 1-2 M16 11 225 1311000 250 1457000
M72 x 6,0 142 107 98,0 58 8,0 1-2 M20 10 400 1696000 490 2077000
M80 x 6,0 164 122 103,0 64 8,0 1-2 M20 12 420 2137000 490 2493000
* each screw item 2

Used on a 100 kNm test bench bottle Used on couplings for wind power Available as a complete unit including
stations setscrew
KTR Precision joints

KTR clamping nut M33 x 3,5

Ordering
example: Spider type Size

For continuously updated data please refer to our online catalogue at www.ktr.com 295
KTR Precision joints

Selection and sizing according to DIN 808 with plain/needle bearing

Size
Type
G [kW]
GD
GA
For plain bearing nmax. = 1000 min-1 GR

Torque selected T [Nm]

Speed n [rpm]

Selection of type G, GD, GA, GR (max. 1000 rpm) 1)

The selection of precision joints with plain bearing is based on the driving torque considering a correction value which depends on the
diffraction angle α and the operating speed.
For extendable joints the overall length and the speed need to be considered for sizing in addition (please consult with KTR's engineering
department).
power [kW]
Driving torque Mt [Nm] = 9550 
speed [rpm]

Torque selected T [Nm] = driving torque  correction value

Additional review:
Diffraction angle [°]  speed [rpm] ≤ 40,000

Diffraction angle [α] 5° 10° 15° 20° 25° 30° 35° 40° 45°
Correction value 0,8 1,00 1,25 1,5 1,8 2,2 2,6 3,3 4,0

Details given:
Driving torque Mt 63 Nm
Diffraction angle 30°  Correction value for diffraction angle 2.2
Operating speed 400 min-1

Torque selected T [Nm] = 63 Nm  2.2  138.6 Nm

Selection based on table : Joint size 6

296 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR Precision joints

Size

CLAMPEX®
Type
H [kW]
HD
HA
HR
For needle bearing nmax. = 4000 min-1

Torque selected T [Nm]

Clamping nuts
Speed n [rpm]

Selection of type H, HD, HA, HR (max. 4000 rpm) 1)

The selection of precision joints with plain bearing is based on the driving torque considering a correction value which depends on the
diffraction angle α and the operating speed.
For extendable joints the overall length and the speed need to be considered for sizing in addition (please consult with KTR's engineering
department).
power [kW]
Driving torque Mt [Nm] = 9550 
speed [rpm]

Torque selected T [Nm] = driving torque  correction value

Additional review:
KTR Precision joints

Diffraction angle [°]  speed [rpm] ≤ 40,000

Diffraction angle [α] 5° 10° 15° 20° 25° 30° 35° 40° 45°
Correction value 0,8 1,00 1,1 1,25 1,4 2,0 2,5 3,3 4,0

Details given:
Driving torque Mt 8,8 Nm
Diffraction angle 20°  Correction value for diffraction angle 1.25
Operating speed 2000 min-1

Torque selected T [Nm] = 8.8 Nm  1.25  11 Nm

Selection based on table : Joint size 6

For continuously updated data please refer to our online catalogue at www.ktr.com 297
KTR Precision joints type G and GD

According to DIN 808 with plain bearing

For legend of pictogram please refer to flapper on the cover

120 nmax.
≤1000 rpm

Precision single joint G Precision double joint GD

Finish bores:

Type G and GD
Types and size Weight [kg]
SW
Size G DIN description to G Size GD DIN description GD d [H7] D L2 L1 C L4 L3 a [JS9] b Q [H10] G GD
[H8]
01 G E6 x 16-G 01 GD D6 x 16-G 6 16 34 17 8 22 56 2 7,0 6 6 0,05 0,08
02 G E8 x 16-G 02 GD D8 x 16-G 8 16 40 20 11 22 62 2 9,0 8 8 0,05 0,08
03 G E10 x 22-G 03 GD D10 x 22-G 10 22 48 24 12 26 74 3 11,4 10 10 0,10 0,15
04 G E12 x 25-G 04 GD D12 x 25-G 12 25 56 28 13 30 86 4 13,8 12 12 0,16 0,25
05 G E14 x 28-G 05 GD D14 x 28-G 14 28 60 30 14 36 96 5 16,3 14 14 0,20 0,40
1G E16 x 32-G 1 GD D16 x 32-G 16 32 68 34 16 37 105 5 18,3 16 16 0,30 0,45
2G E18 x 36-G 2 GD D18 x 36-G 18 36 74 37 17 40 114 6 20,8 18 18 0,45 0,70
3G E20 x 42-G 3 GD D20 x 42-G 20 42 82 41 18 47 129 6 22,8 20 20 0,60 1,00
4G E22 x 45-G 4 GD D22 x 45-G 22 45 95 47,5 22 50 145 6 24,8 22 22 0,95 1,55
5G E25 x 50-G 5 GD D25 x 50-G 25 50 108 54 26 55 163 8 28,3 25 25 1,20 2,00
6G E30 x 58-G 6 GD D30 x 58-G 30 58 122 61 29 68 190 8 33,3 30 30 1,85 2,90
6 G1 E32 x 58-G 6 GD1 D32 x 58-G 32 58 130 65 33 68 198 10 35,3 30 30 2,00 3,00
7G E35 x 70-G 7 GD D35 x 70-G 35 70 140 70 35 72 212 10 38,3 - - 3,15 4,75
8G E40 x 80-G 8 GD D40 x 80-G 40 80 160 80 39 85 245 12 43,3 - - 4,60 7,20
9G E50 x 95-G 9 GD D50 x 95-G 50 95 190 95 46 100 290 14 53,8 - - 7,60 12,0

04 G Ø12 Ø12 Nute DIN

Ordering
example: Finish bore (H7) feather keyway acc. to
Size and type of joint Finish bore (H7)
DIN 6885 sheet 1 (JS9)

298 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR Precision joints type H and HD

According to DIN 808 with needle bearing

CLAMPEX®
For legend of pictogram please refer to flapper on the cover

120 nmax.
≤4000 rpm

Precision single joint H Precision double joint HD

Clamping nuts
Finish bores:

Type H and HD
Types and size Dimensions [mm] Weight [kg]
SW
Size H DIN description to H Size HD DIN description HD d [H7] D L2 L1 C L4 L3 a [JS9] b Q [H10] H HD
[H8]
03 H E10 x 22-W 03 HD D10 x 22-W 10 22 48 24 12 26 74 3 11,4 10 10 0,10 0,15
04 H E12 x 25-W 04 HD D12 x 25-W 12 25 56 28 13 30 86 4 13,8 12 12 0,16 0,25
05 H E14 x 28-W 05 HD D14 x 28-W 14 28 60 30 14 36 96 5 16,3 14 14 0,20 0,40
1H E16 x 32-W 1 HD D16 x 32-W 16 32 68 34 16 37 105 5 18,3 16 16 0,30 0,45
2H E18 x 36-W 2 HD D18 x 36-W 18 36 74 37 17 40 114 6 20,8 18 18 0,45 0,70
KTR Precision joints

3H E20 x 42-W 3 HD D20 x 42-W 20 42 82 41 18 47 129 6 22,8 20 20 0,60 1,00

4H E22 x 45-W 4 HD D22 x 45-W 22 45 95 47,5 22 50 145 6 24,8 22 22 0,95 1,55
5H E25 x 50-W 5 HD D25 x 50-W 25 50 108 54 26 55 163 8 28,3 25 25 1,20 2,00
6H E30 x 58-W 6 HD D30 x 58-W 30 58 122 61 29 68 190 8 33,3 30 30 1,85 2,90
6 H1 E32 x 58-W 6 HD1 D32 x 58-W 32 58 130 65 33 68 198 10 35,3 30 30 2,00 3,00
7H E35 x 70-W 7 HD D35 x 70-W 35 70 140 70 35 72 212 10 38,3 - - 3,15 4,75
8H E40 x 80-W 8 HD D40 x 80-W 40 80 160 80 39 85 245 12 43,3 - - 4,60 7,20
9H E50 x 95-W 9 HD D50 x 95-W 50 95 190 95 46 100 290 14 53,8 - - 7,60 12,0

1H Ø16 Ø16 Nute DIN

Ordering
example: Finish bore (H7) feather keyway acc.
Size and type of joint Finish bore (H7)
to DIN 6885 sheet 1 (JS9)

For continuously updated data please refer to our online catalogue at www.ktr.com 299
KTR Precision joints type GA and HA

According to DIN 808 with plain and needle bearing (extendable)

For legend of pictogram please refer to flapper on the cover

120 nmax. nmax.

≤1000 rpm ≤4000 rpm

Preferred lengths
Dimensions [mm]
Size
Lmin. / Lmax.
140 160 180 230
03
170 200 240 330
160 180 200 220 250 280 300
04
190 225 270 300 355 420 450
170 180 200 220 250 280 300 350 400
05
200 220 260 300 350 420 450 550 650
190 210 240 250 275 300 380 400
1
220 250 320 350 390 430 590 630
230 250 270 290 300 400 500
Finish bores: 2
280 320 370 400 415 620 820
250 270 290 320 380 420 500
3
300 340 380 440 560 640 800
250 270 290 330 350 470
4
280 320 350 430 470 710
295 310 350 380 420 460 500
5
345 375 450 500 590 660 745
330 350 370 400 450 500 540
6
380 420 455 510 620 720 795

Type GA with plain bearing nmax. = 1000 rpm and type HA with needle bearing nmax. = 4000 rpm
Size Dimensions [mm]
d1, d2 Spline shaft D1
GA HA D L2 C Lmin. / Lmax. / X B a [JS9] b Q [H10] SW [H8]
[H7]
01 GA - 6 16 34 8   25 2 7,0 6 6 SW8 16
02 GA - 8 16 40 11   25 2 9,0 8 8 SW8 16
03 GA 03 HA 10 22 48 12   30 3 11,4 10 10 11 x 14 Z6 22
04 GA 04 HA 12 25 56 13   40 4 13,8 12 12 13 x 16 Z6 26
05 GA 05 HA 14 28 60 14   40 5 16,3 14 14 13 x 16 Z6 29
as specified
1 GA 1 HA 16 32 68 16   40 5 18,3 16 16 16 x 20 Z6 32
by the
2 GA 2 HA 18 36 74 17   40 6 20,8 18 18 18 x 22 Z6 37
customer
3 GA 3 HA 20 42 82 18   45 6 22,8 20 20 21 x 25 Z6 42
4 GA 4 HA 22 45 95 22   50 6 24,8 22 22 23 x 28 Z6 47
Lmin. / Lmax.
5 GA 5 HA 25 50 108 26   50 8 28,3 25 25 26 x 32 Z6 52
6 GA 6 HA 30 58 122 29   60 8 33,3 30 30 32 x 38 Z8 58
7 GA 7 HA 35 70 140 35   70 10 38,3 - - 36 x 42 Z8 70
8 GA 8 HA 40 80 160 39   80 12 43,3 - - 42 x 48 Z8 80
9 GA 9 HA 50 95 190 46   90 14 53,8 - - 46 x 54 Z8 95

Calculation of mounting lengths L and X (stroke)

Stroke X ≥  Lmax - 2  L2 - B Lmin ≥  Lmax + 2  L2 + B Minimum dimension Lmin = L2 + B +

2 2 X + L2

3 GA d1 = Ø20 d2 = Ø20 Nute DIN 550/650

Ordering
example: Finish bore (H7), feather keyway
Size and type of joint Finish bore (H7) Mounting length Lmin./Lmax.
acc. to DIN 6885 sheet 1 (JS9)

300 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR Precision joints type X and XD

According to DIN 808 with plain bearing made of stainless steel

CLAMPEX®
For legend of pictogram please refer to flapper on the cover

120 nmax.
≤300 rpm

Precision single joint X Precision double joint XD

Clamping nuts
Finish bores:

Type X and XD
Types and size Dimensions [mm] Weight [kg]
SW
Size X DIN description X Size XD DIN description XD d [H7] D L2 L1 C L4 L3 a [JS9] b Q [H10] X XD
[H8]
01 X E6 x 16-G 01 XD D6 x 16-G 6 16 34 17 8 22 56 2 7,0 6 6 0,05 0,08
02 X E8 x 16-G 02 XD D8 x 16-G 8 16 40 20 11 22 62 2 9,0 8 8 0,05 0,08
03 X E10 x 22-G 03 XD D10 x 22-G 10 22 48 24 12 26 74 3 11,4 10 10 0,10 0,15
KTR Precision joints

04 X E12 x 25-G 04 XD D12 x 25-G 12 25 56 28 13 30 86 4 13,8 12 12 0,16 0,25

1X E16 x 32-G 1 XD D16 x 32-G 16 32 68 34 16 37 105 5 18,3 16 16 0,30 0,45
3X E20 x 42-G 3 XD D20 x 42-G 20 42 82 41 18 47 129 6 22,8 20 20 0,60 1,00
5X E25 x 50-G 5 XD D25 x 50-G 25 50 108 54 26 55 163 8 28,3 25 25 1,20 2,00
6X E30 x 58-G 6 XD D30 x 58-G 30 58 122 61 29 68 190 8 33,3 30 30 1,85 2,90

04 X Ø12 Ø12 Nute DIN

Ordering
example: Finish bore (H7) feather keyway acc. to DIN
Size/type of joint Finish bore (H7)
6885 sheet 1 (JS9)

For continuously updated data please refer to our online catalogue at www.ktr.com 301
KTR Precision joints type GR and HR

Plain and needle bearing with quick locking

For legend of pictogram please refer to flapper on the cover

120 nmax. nmax.

≤1000 rpm ≤4000 rpm

Type GR with plain bearing nmax. = 1000 rpm and type HR with needle bearing nmax. = 4000 rpm
Size Dimensions [mm]
Weight [kg]
GR HR d1, d2 [H7] D L2 L1 C Y e f a [JS9] b SW [H8]
02 GR - 8 16 52 26 14 9,5 3,5 7,0 2 9,0 8 0,05
03 GR 03 HR 10 22 62 31 17 11,5 4,0 8,7 3 11,0 10 0,12
04 GR 04 HR 12 25 74 37 21 13,5 4,0 11,0 4 13,3 12 0,18
05 GR 05 HR 14 25 74 37 21 13,5 4,0 13,0 5 15,3 14 0,17
1 GR 1 HR 16 32 86 43 24 14,0 6,35 14,8 5 17,3 16 0,34
2 GR 2 HR 18 36 96 48 28 19,0 8,0 16,0 6 19,8 18 0,47
3 GR 3 HR 20 42 108 54 31 19,0 8,0 18,0 6 22,8 20 0,76
4 GR 4 HR 22 45 120 60 34 20,5 10,0 20,0 6 24,8 22 0,97
5 GR 5 HR 25 50 132 66 38 20,5 10,0 23,0 8 28,3 25 1,3
6 GR 6 HR 30 58 166 83 49 25,0 10,0 28,0 8 33,3 30 2,13

03 HR d1 = Ø10 d2 = Ø10 Nute DIN

Ordering
example: Finish bore (H7)
Size/type of joint Finish bore (H7)
feather keyway acc. to DIN 6885 sheet 1 (JS9)

302 For continuously updated data please refer to our online catalogue at www.ktr.com
KTR Precision joints accessories

Protection bushings

CLAMPEX®
Clamping nuts
Protection bushings
Size Precision joints A B C
M 01 01 G, 01 X 28 34 15
M 02 02 G, 02 X, 02 GR 32 40 16,5
M 03 03 G, 03 H, 03 GA, 03 HA, 03 X, 03 GR, 03 HR 40 45 20,5
M 04 04 G, 04 H, 04 GA, 04 HA, 04 X, 04 GR, 04 HR 48 50 24,5
M 05 05 G, 05 H, 05 GA, 05 HA, 05 GR, 05 HR 52 56 27,5
M1 1 G, 1 H, 1 GA, 1 HA, 1 X, 1 GR, 1 HR 56 65 30,5
M2 2 G, 2 H, 2 GA, 2 HA, 2 GR, 2 HR 66 72 35,5
M3 3 G, 3 H, 3 GA, 3 HA, 3 X, 3 GR, 3 HR 75 82 40,0
M4 4 G, 4 H, 4 GA, 4 HA, 4 GR, 4 HR 84 95 45,0
M5 5 G, 5 H, 5 GA, 5 HA, 5 X, 5 GR, 5 HR 92 108 50,0
M6 6 G, 6 G1, 6 H, 6 H1, 6 GA, 6 HA, 6 X, 6GR, 6 HR 100 122 56,0

KTR Precision joints

For continuously updated data please refer to our online catalogue at www.ktr.com 303
304
Torque measuring technology

Torque measuring shafts

Types and operating description 306

DATAFLEX®
Type 16/10, 16/30, 16/50 308
Type 32/100, 32/300, 32/500 310
Type 42/1000 312
Type 85/2000, 85/5000, 85/10000 314
Type 140/20000, 140/50000 316
Connecting accessories 317

DATAFLEX®

DATAFLEX® 16 DATAFLEX® 32 DATAFLEX® 42 DATAFLEX® 85 DATAFLEX® 140

305
Torque measuring technology
Types and operating description

Properties of torque measuring shafts

DATAFLEX® 16, 32, 42 - High precision with each revolution
With the new size of DATAFLEX® 42 KTR extend their range of precision measuring
shafts for higher torques. Along with the well-established size of DATAFLEX ®  16
and DATAFLEX® 32 measuring ranges from 10 Nm to 1000 Nm are covered now.
With the new series the torque is measured using the approved technology of wire
strain gauges DMS while processing without contact with a resolution of 24 bit.
Thus, the inaccuracy of torque measuring is reduced to less than 0.1 % of the meas-
uring range. By integrating a high-resolution speed sensor the new series combines
four measurements in one: Measuring the torque, speed, rotation angle and rotation
direction is part of the standard equipment.
NEW
For legend of pictogram please refer to flapper on the cover

DATAFLEX® 85, 140 - Patented technology at top prices

The DATAFLEX® torque measuring shafts sizes 85 and 140 measure the torque
without contact and free from wear. Their secret is a patented measuring method
sensing twisting of the torsion shaft by light quantity measurement. Here the light
is directed through two disks the transparency of which changes proportionately to
the torque. The overall electronics are installed in a stationary housing to make sure
that no signals have to be transmitted by the rotating shaft and the torque is available
completely with a high band width of 16 kHz. This allows to measure and analyze
highly dynamic processes accurately.
The analog output values are available both as a voltage signal from 0 - 10 V and as
a current signal from 4 - 20 mA. In addition a speed encoder is fitted as a standard
providing a signal at a resolution of 60 pulses per revolution.

Couplings adjusted to every application

Matching with all series of DATAFLEX® we recommend to use the servo lamina
coupling RADEX®-NC and the steel lamina coupling RADEX®-N. Together they
form a compact solution which is easy to integrate while having a high stiffness.
Basically it is also possible to use backlash-free, plug-in types of couplings such
as ROTEX® GS or to fit an overload coupling.

306 For continuously updated data please refer to our online catalogue at www.ktr.com
Torque measuring technology
Types and operating description

Product finder of torque measuring shafts

Product DATAFLEX® 16 DATAFLEX® 32 DATAFLEX® 42 DATAFLEX® 85 DATAFLEX® 140

Maintenance-free     
For rotating applications     

Torque range TKN [Nm] 10, 30, 50 100, 300, 500 1000 2000, 5000, 10000 20000, 50000
Measuring inaccuracy [% of terminal value] 0,1 0,1 0,1 1 1

Torque output -10 … 10 V -10 … 10 V -10 … 10 V 0 … 10 V, 4 … 20 mA 0 … 10 V, 4 … 20 mA

Speed output
Square wave signal [pulses / rev.] 2 x 360 Pulses/rev. 2 x 720 Pulses/rev. 2 x 720 Pulses/rev. 1 x 60 Pulses/rev. 1 x 60 Pulses/rev.
DC - direct voltage signal [0 .. 10V]     
Direction signal    – –

Maximum speed [RPM] 10.000 7.500 6.500 2.500 2.000

RADEX®-N105, N115,
Coupling recommended RADEX®-NC 20, 25 RADEX®-N42, N60 RADEX®-N80 as specified
N135
Connection housing DF2     

DATAFLEX®
Connection housing DF2 – All Inclusive

The connection housing DF2 can easily be combined with all DATAFLEX® torque measur-
ing shafts disposing of a retainer for top hat rail assembly as well as terminal screws for
an easy connection of external devices.
The following features save the purchase of expensive measuring amplifiers and convert-
ers:

zz The torque output can be filtered over 5 steps so that short torque peaks in the dis-
play can be reduced.
zz The pulsed outputs of the speed signals can be configured both for 5V (TTL) and
24V (HTL). This makes the outputs compatible with data logging boards and SPS
controls.
zz In parallel with the pulse signal an integrated frequency voltage converter supplies a
DC voltage from 0 – 10 V proportionally to the speed, the scaling of which can be
adapted individually. This makes an expensive counter superfluous so that the signal
can either be processed as a voltage or displayed.
zz A direction signal indicates the rotational direction of the drive
(with DATAFLEX® 16, 32 and 42).

For continuously updated data please refer to our online catalogue at www.ktr.com 307
DATAFLEX® 16/10, 16/30, 16/50
Torque measuring shafts

For torques up to 50 Nm

For legend of pictogram please refer to flapper on the cover

0,1 %

General properties
Type of
Torque TKN [Nm] Supply voltage [V] Current consumption [mA] Operating temperature range [°C]
DATAFLEX®
16/10 -10 ... +10
16/30 -30 ... +30 24 ±4 <100 0 ... 55
16/50 -50 ... +50

Technical data of torque signal Technical data of speed signal

Influence of
Type of Inaccuracy 1, 2) Output voltage Band width Resolution Number of Square wave Direct voltage Direction
temperature)
DATAFLEX® [%] [V] [kHz] [pulses/rev.] channels signal3) [Vss] signal3) [V] signal 3) [V]
[%/10 °C]
16/10
0 ... 10,
16/30 <0,1 -10 ... 10 2 0,05 360 2, 90° versetzt 5/24 5/24
skalierbar
16/50

Mechanical data of torque measuring shaft

Static load Breaking load Max. bending Max. radial Max. axial Torsion spring Mass moment
Type of Weight Twisting angle Max. speed
limit TK break moment force force stiffness CT of inertia
DATAFLEX® [kg] withTKN [°] [rpm]
TK max [%] 1) [%] 1) [Nm] [N] [kN] [Nm/rad] [kgmm2]
16/10 1,07 12 1,1 910 0,63
16/30 150 300 3,2 37 2,3 0,7 2840 0,61 22,6 10000
16/50 5,3 61 3,1 4100 0,7

Mechanical data of the combination of DATAFLEX® 16 and RADEX®-NC

Coupling Mechanical data of the combination
Type of
Clamping screw M Mass moment of inertia Torsion spring stiffness
DATAFLEX® Size of RADEX®-NC Weight [kg] Max. speed [RPM] 4)
M TA [Nm] [kgmm2] CT [Nm/rad]
16/10 20 M6 10 177 860 1,30
16/30 2600 1,75 7500
25 M8 25 416
16/50 3600 1,75

1)
Referring to rated torque TKN
2)
Errors in linearity incl. hysteresis
3)
See page 317: with connection housing DF2
4)
Higher speed on request; with high speeds please use coupling hubs balanced.

DATAFLEX® 16/30 DF2 2 m, 5 m and 10 m RADEX®-NC 25 EK Ø16/20-Ø16/30

Ordering
example: Type of measuring shaft Connection housing If accessories are requested: coupling type,
Connection cable
with measuring range (is required) finish bores d/d1-d/d2

308 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

DATAFLEX® 16

DATAFLEX®
Combination of DATAFLEX® 16 with RADEX®-NC

Dimensions [mm] of torque measuring shaft and coupling combination

Type of d1/d2
d D L1 L2 L3 L4 L5 H B X RADEX®-NC Size D1 s L6 L7 L8 Ltptal
DATAFLEX® max
16/10 20 59 25 4 138 24 146 194
16/30 16 52 140 25 90 85 3,5 67 50 12
25 70 35 5 154 32 164 228
16/50

For continuously updated data please refer to our online catalogue at www.ktr.com 309
DATAFLEX® 32/100, 32/300, 32/500
Torque measuring shafts

For torques from 100 to 500 Nm

NEW

For legend of pictogram please refer to flapper on the cover

0,1 %

General properties
Type of
Rated torque TKN [Nm] Supply voltage [V] Current consumption [mA] Operating temperature range [°C]
DATAFLEX®
32/100 -100 ... +100
32/300 -300 ... +300 24 ±4 <100 0 ... 55
32/500 -500 ... +500

Technical data of torque signal Technical data of speed signal

Influence of
Type of Inaccuracy 1, 2) Output voltage Band width Resolution Number of Square wave Direct voltage Direction signal
temperature 1)
DATAFLEX® [%] [V] [kHz] [pulses/rev.] channels signal 3) [Vss] signal 3) [V] 3) [V]
[%/10 °C]
32/100
32/300 <0,1 -10 ... 10 2 0,05 720 2, 90° offset 5/24 0 ... 10, scalable 5/24
32/500

Mechanical data of torque measuring shaft

Static load Breaking load Max. bending Max. radial Max. axial Torsion spring Twisting angle Mass moment
Type of Weight Max. speed
limit TK break moment force force stiffness CT with of inertia
DATAFLEX® [kg] [rpm]
TK max [%] 1) [%] 1) [Nm] [N] [kN] [Nm/rad] TKN [°] [kgmm2]
32/100 11 110 5,0 18000 0,32 219
32/300 150 300 32 320 10,4 1,9 46000 0,37 221 7500
32/500 53 530 14,6 60000 0,48 224

Mechanical data of the combination of DATAFLEX® 32 and RADEX®-N

Coupling Mechanical data of the combination
Type of
Thread for setscrew Mass moment of Torsion spring stiff- Max. speed
DATAFLEX® Size of RADEX -N ®
Weight [kg]
G t TA [Nm] inertia [kgmm2] ness CT [Nm/rad] [RPM] 4)
32/100 42 5900 16000 6,95 7500
32/300 M8 20 10 40000 11,65
60 17900 6700
32/500 49000 11,70

1)
Referring to rated torque TKN
2)
Errors in linearity incl. hysteresis
3)
See page 317: with connection housing DF2
4)
Higher speed on request

DATAFLEX® 32/300 DF2 2 m, 5 m und 10 m RADEX®-N 60 NN Ø32/50NnD Ø32/60NnD

Ordering
example: Type of measuring shaft with Connection housing In case that accessories are requested: cou-
Connection cable
measuring range (is required) pling type, finish bores d/d1-d/d2

310 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

DATAFLEX® 32

DATAFLEX®
Combination of DATAFLEX® 32 with RADEX®-N

Dimensions [mm] of torque measuring shaft and coupling combination

d1/
Type of
d D L1 L2 L3 L4 L5 H B X RADEX®-N Size D1 D2 d2 E L6 L7 L8 Ltptal
DATAFLEX®
max.
32/100 42 104 68 42 10 185 45 205 295
32/300 32 75 175 40 95 88 4,5 77,3 50 15
60 138 88 60 11 205 55 227 337
32/500

For continuously updated data please refer to our online catalogue at www.ktr.com 311
DATAFLEX® 42/1000
Torque measuring shafts

For torques up to 1000 Nm

NEW

For legend of pictogram please refer to flapper on the cover

0,1 %

General properties
Type of DATAFLEX® Rated torque TKN [Nm] Supply voltage [V] Current consumption [mA] Operating temperature range [°C]
42/1000 -1000 ... +1000 24 ±4 <100 0 ... 55

Technical data of torque signal Technical data of speed signal

Influence of
Type of Inaccuracy,2) Output voltage Band width Resolution Number of Square wave Direct voltage Direction
temperature1)
DATAFLEX® [%] [V] [kHz] [pulses/rev.] channels signal3) [Vss] signal3) [V] signal3) [V]
[%/10 °C]
42/1000 <0,1 -10 ... 10 2 0,05 720 2, 90° offset 5/24 0 ... 10, ­scalable 5/24

Mechanical data of torque measuring shaft

Static Breaking load Max. bending Torsion spring
Type of Max. radial force Max. axial force Twisting angle Mass moment of Max. speed
load limit TK break moment Weight [kg] stiffness CT
DATAFLEX® [N] [kN] with TKN [°] inertia [kgmm2] [rpm]
TK max [%] 1) [%] 1) [Nm] [Nm/rad]
42/1000 150 300 107 780 24 3,43 132000 0,43 710 6500

Mechanical data of the combination DATAFLEX® 42 and RADEX®-N

Coupling Mechanical data of the combination
Type of
Thread for setscrew Mass moment of Torsion spring stiff- Max. speed
DATAFLEX® RADEX®-N Size Weight [kg]
G t TA [Nm] inertia [kgmm2] ness CT [Nm/rad] [RPM] 4)
42/1000 80 M10 20 17 61000 107000 23,1 5100

1)
Referring to rated torque TKN
2)
Errors in linearity incl. hysteresis
3)
See page 317: with connection housing DF2
4)
Higher speed on request

DATAFLEX® 42/1000 DF2 2 m, 5 m und 10 m RADEX®-N 80 NN Ø42/50NnD Ø42/60NnD

Ordering
example: Type of measuring shaft with Connection housing In case that accessories are requested: cou-
Connection cable
measuring range (is required) pling type, finish bores d/d1-d/d2

312 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

DATAFLEX® 42

DATAFLEX®
Combination of DATAFLEX® 42 with RADEX®-N

Dimensions [mm] of torque measuring shaft and coupling combination

d1/
Type of
d D L1 L2 L3 L4 L5 H B X RADEX®-N Size D1 D2 d2 E L6 L7 L8 Ltptal
DATAFLEX®
max
42/1000 42 88 212 55 102 95 5 84,7 50 18,5 80 179 117 80 14 222 75 250 400

For continuously updated data please refer to our online catalogue at www.ktr.com 313
DATAFLEX® 85/2000, 85/5000, 85/10000
Torque measuring shafts

For torques from 2000 to 5000 Nm

For legend of pictogram please refer to flapper on the cover

+/- 0,5 %

General properties
Type of DATAFLEX® Rated torque TKN [Nm] Supply voltage [V] Current consumption [mA] Operating temperature range [°C]
85/2000 -2000 ... +2000
85/5000 -5000 ... +5000 24 ±4 <100 0 ... 55
85/10000 -10000 ... +10000

Technical data of torque signal Technical data of speed signal

Influence of Square wave
Type of Inaccuracy Output voltage Output current Band width Resolution Number of Direct voltage signal Direction
temperature 1) signal 2)
DATAFLEX® 1) [%] [V] [mA] [kHz] [pulses/rev.] channels 2) [V] signal 2) [V]
[%/10 °C] [Vss]
85/2000
85/5000 <±0,5 0 ... 10 4 ... 20 16 0,5 60 1 5/24 0 ... 10, scalable –
85/10000

Mechanical data of torque measuring shaft

Static limit Breaking load Torsion spring Mass moment
Type of Max. bending Max. radial Max. axial Twist angle Max. speed
load TK max TK break Weight [kg] stiffness CT of inertia
DATAFLEX® moment [Nm] force [N] force [kN] with TKN [°] [rpm]
[%] 1) [%] 1) [Nm/rad] [kgmm2]
85/2000 380 1500 50 22,6 382000 0,30 16360
85/5000 150 300 760 3000 80 23,3 818570 0,35 16790 2500
85/10000 1270 5000 110 23,9 1273330 0,45 17420

Mechanical data of the combination of DATAFLEX® 85 and RADEX®-N

Coupling Mechanical data of the combination
Type of Thread for setscrew Torsion spring
DATAFLEX® Mass moment of Max. speed 3)
Size of RADEX®-N stiffness CT [Nm/ Weight [kg]
G t TA [Nm] inertia [kgmm2] [RPM]
rad]
85/2000 105 M12 30 40 225000 29300 61,5
85/5000 115 M12 30 40 473500 55600 85,6 2500
85/10000 135 M20 40 140 1006700 92800 130,2

1)
Referring to rated torque TKN
2)
See page 317: with connection housing DF2
3)
Higher speed on request

DATAFLEX® 85/5000 DF2 2 m, 5 m und 10 m RADEX®-N 115 NN Ø65/60NnD Ø65/70NnD

Ordering
example: Type of measuring shaft with Connection housing In case that accessories are requested: coupling
Connection cable
measuring range (is required) type, finish bores d/d1-d/d2

314 For continuously updated data please refer to our online catalogue at www.ktr.com
Components

DATAFLEX® 85

DATAFLEX®
Combination of DATAFLEX® 85 with RADEX®-N

Dimensions [mm] of torque measuring shaft and coupling combination

Type of d1/d2
d D L1 L2 L3 L4 L5 RADEX®-N Size D1 D2 E L6 L7 L8 Ltptal
DATAFLEX® max
85/2000 105 225 147 105 20 344 90 384 564
85/5000 85 215 344 90 164 153 10 115 265 163 115 23 364 100 410 610
85/10000 135 305 184 135 27 434 135 488 758

For continuously updated data please refer to our online catalogue at www.ktr.com 315
DATAFLEX® 140/20000, 140/50000
Torque measuring shafts

For torques from 20000 to 50000 Nm

For legend of pictogram please refer to flapper on the cover

+/- 0,5 %

DATAFLEX® 140

General properties
Type of DATAFLEX® Rated torque TKN [Nm] Supply voltage [V] Current consumption [mA] Operating temperature range [°C]
140/20000 -20000 ... +20000
24 ±4 <100 0 ... 55
140/50000 -50000 ... +50000

Technical data of torque signal Technical data of speed signal

Influence of
Type of Inaccuracy Output voltage Output current Band width Resolution Number of Square wave Direct voltage Direction
temperature 1)
DATAFLEX® 1)
[%] [V] [mA] [kHz] [pulses/rev.] channels signal 2) [Vss] signal 2) [V] signal 2) [V]
[%/10 °C]
140/20000 0 ... 10,
<±0,5 0 ... 10 4 ... 20 16 0,5 60 1 5/24 –
140/50000 scalable

Mechanical data of torque measuring shaft

Static load Breaking load Torsion spring Twist angle Mass moment
Type of Max. bending Max. radial Max. axial Max. speed
limit TK max TK break Weight [kg] stiffness CT with of inertia
DATAFLEX® moment [Nm] force [N] force [kN] [rpm]
[%] 1) [%] 1) [Nm/rad] TKN [°] [kgmm2]
140/20000 2750 8000 100 73,9 3935000 0,30 170000
150 300 2000
140/50000 5500 16000 160 76,5 6750000 0,42 175000

Dimensions [mm] of torque measuring shaft

Type of DATAFLEX® d D L1 L2 L3 L4 L5
140/20000
140 280 486 140 206 191 13
140/50000

1)
Referring to rated torque TKN
2)
See page 317: with connection housing DF2

DATAFLEX® 140/50000 DF2 2 m, 5 m und 10 m

Ordering
example: Type of measuring shaft with Connection housing
Connection cable
measuring range (is required)

316 For continuously updated data please refer to our online catalogue at www.ktr.com
DATAFLEX® Anschlusszubehör
Torque measuring shafts

Connection housing DF2 and connection cable

DATAFLEX®
Connection cable and connection housing DF2
Spider type Operation DATAFLEX 16 DATAFLEX 32 DATAFLEX 42 DATAFLEX 85, 140
Connections DF2
Input operating voltage
24V Supply voltage + 24 V DC ± 4V / 100mA max.
GND Supply voltage -
Output of torque
M-U Voltage output + -10 V … 10V 0 V … 10 V
GND Mass of torque output
M-I Current output - - - 4 mA … 20 mA
Pulsed output of speed
Pulsed output HTL, TTL (24V, 5V, HTL, TTL (24V, 5V, HTL, TTL (24V, 5V, HTL, TTL (24V, 5V,
N1
speed track 1 360 Imp./U.) 720 Imp./U.) 720 Imp./U.) 1 x 60 Imp./U.)
GND Mass of pulsed output
Pulsed output HTL, TTL (24V, 5V, HTL, TTL (24V, 5V,
N2 – –
speed track 2 360 Imp./U.) 720 Imp./U.)
Speed of direct voltage output
R/L Direction signal speed HTL, TTL (24V, 5V, CW = 1) –
GND Mass of direct voltage output speed
N-U Voltage output speed 0 V … 10 V (scalable)
Other connections / control elements
T1 Sensor T1 connection External sensor connection T1
L1, L2 Signal LEDs Condition monitoring
T1, T2 Sensor T1, T2 Sensor for programming
TP Switch low pass Filter for speed signal to be set in four stages
Connection cable
Lengths of connection cable 2, 5, 10 m, other lengths on request

For continuously updated data please refer to our online catalogue at www.ktr.com 317
Summary of literature
No matter if a perfect drive, a brake that takes effect, space-saving cooling or accurate hydraulics is required, if on land, by
sea or at an airy height - KTR’s product portfolio is just as manifold as its applications. The following catalogues and leaflets
provide for a survey. Available at www.ktr.com

Product catalogues

318
Industry leaflets

ATEX  leaflet Company leaflet

319
KTR Germany:
Headquarter: Schleswig-Holstein, Nord-Niedersachsen, Berlin, Mecklenburg-Vorpommern
KTR Kupplungstechnik GmbH Hamburg, Bremen Südost, Sachsen-Anhalt, Brandenburg
Postfach 1763 Martin Lau, Maschinenbautechniker Thüringen Nord, Sachsen
D-48407 Rheine KTR, Ingenieurbüro Hamburg Harald Scholze, Dipl.-Ing. (TU)
Phone: +49(0)5971 798-0 Geschwister-Scholl-Allee 44 KTR Ingenieurbüro Wittenberg
Fax: +49(0)5971 798-698 and 798-450 25524 Itzehoe August-Bebel-Straße 7
E-Mail: mail@ktr.com Phone: +49(0)4821 4050812 06886 Lutherstadt-Wittenberg
Internet: www.ktr.com Mobile: +49(0)172 5310014 Phone: +49(0)3491 663526
E-Mail: m.lau@ktr.com Mobile: +49(0)172 5329887
E-Mail: h.scholze@ktr.com
NRW: Reg.-Bez.: Düsseldorf
Günter Enk, Dipl.-Ing. Baden-Württemberg Nord
KTR Ingenieurbüro Bocholt Eberhard Maier, Dipl.-Ing. (FH)
Stormstraße 35 Hortensienweg 1
46397 Bocholt 70374 Stuttgart, Sommerrain
KTR Brake Systems GmbH Phone: +49(0)2871 227488 Phone: +49(0)7116 5842957
Competence Center for Brake Systems Mobile: +49(0)172 5355704 Mobile: +49(0)172 5355056
Zur Brinke 14 E-Mail: g.enk@ktr.com E-Mail: e.maier@ktr.com
D-33758 Schloß Holte-Stukenbrock
Phone: +49(0)5207 99161-0 Emsland, Mitte- und Süd-Niedersachsen, Baden-Württemberg Süd
Mobile: +49(0)175 2650033 Ostwestfalen Jochen Glöckler, Maschinenbautechniker
Fax: +49(0)5207 99161-11 Rainer Lüttmann KTR Ingenieurbüro Balingen
KTR Kupplungstechnik GmbH Hölzlestraße 44
Leiter Vertrieb Bremsen Wind Rodder Damm 170 72336 Balingen
Jürn Edzards, Dipl.-Ing. (FH) 48432 Rheine Phone: +49(0)7433 91381
Zur Brinke 14 Phone: +49(0)5971 798-340 Mobile: +49(0)172 5310049
D-33758 Schloß Holte-Stukenbrock Mobile: +49(0)172 5322164 E-Mail: j.gloeckler@ktr.com
Phone: +49(0)5207 99161-0
E-Mail: r.luettmann@ktr.com
Mobile: +49(0)175 2650033 Bayern-Nord, Thüringen Süd
E-mail: j.edzards@ktr.com Ruhrgebiet, Siegerland, Hessen-Nord Eduard Schadly, Ingenieur
René Pottmann, Maschinenbautechniker KTR Ingenieurbüro Prebitz
Leiter Vertrieb Bremsen Industrie
Thomas Wienkotte, Dipl.-Ing. (FH) KTR Ingenieurbüro Dortmund In der Heide 27
Peter-Schumacher-Straße 102 Lindemannstraße 9 95473 Prebitz-Engelmannsreuth
D-50171 Kerpen 44137 Dortmund Phone: +49(0)9270 9666
Phone: +49(0)2237 971796 Phone: +49(0)231 91259060 Mobile: +49(0)172 5329967
Mobile: +49(0)172 5859448 Mobile: +49(0)162 2186045 E-Mail: e.schadly@ktr.com
E-mail: t.wienkotte@ktr.com E-Mail: r.pottmann@ktr.com
Bayern-Süd, Baden-Württemberg Ost
Hessen, Rheinland-Pfalz, Saarland Peter Benkard, Dipl.-Ing. (FH)
Martin Dietrich, Ingenieur KTR Ingenieurbüro Adelsried
Außendienst Bayern, Baden-Württemberg KTR Ingenieurbüro Frankfurt Am Mittelfeld 13
und Österreich für Hydraulik-Komponenten Im Mühlahl 6 86477 Adelsried
Klaus-Peter Sprödhuber 61203 Reichelsheim Phone: +49(0)8293 960504
Hussengutstr.55 Phone: +49(0)6035 2077284 Mobile: +49(0)172 5313059
95445 Bayreuth Mobile: +49(0)172 5329968 E-Mail: p.benkard@ktr.com
Phone: +49(0)921 16388991 E-Mail: m.dietrich@ktr.com
Mobile: +49(0)172 1096496
E-Mail: k.sproedhuber@ktr.com

For all representatives and sales partners please refer to www.ktr.com.

320