PRODUCT TYPE

COUPLINGS

2024
PRODUCT DATA SHEET
CATALOG
© 2024, DELLNER BUBENZER. ALL RIGHTS RESERVED. www.dellnerbubenzer.com
 WELCOME TO
DELLNER BUBENZER

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manufacture of braking systems. Our unrivaled braking
equipment offers customized stop-action solutions for a wide
variety of industries from sea to sky, and everything in between.

For decades DELLNER BUBENZER products have been

recognized worldwide as innovative braking solutions that are
precision engineered to meet the highest quality standards.

2
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3
 ENGINEERING

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of expert engineers rely on decades of

THE HIGHEST experience to deliver superior products

and braking systems for a multitude of

STANDARDS industry-specific applications.

From full braking system design to the

FOR MAXIMUM


assessment and optimization of existing

solutions, DELLNER BUBENZER’s

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including 3D conceptualization, technical
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development of prototypes.
DELLNER BUBENZER’s innovative braking
solutions and products are meticulously
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development center. Our rigorous testing
process proves and validates our research while
ensuring maximum effectiveness, efficiency,
 DELLNER BUBENZER’s provides turn-key
and our shared client commitment to safety. solutions for complete braking system
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DELLNER BUBENZER’s product standards  Upon review of input data, our engineers
are beyond meeting the Association for Iron and product specialists evaluate system
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rigid requirements of Deutsches Institut für and distribution of system components,
Normung e.V. (DIN). With a wide range of perform 3D modeling for system design
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duty applications, our research, development, proper load management and system
and testing center continuously validates our performance.
product performance and integrity.

Our commitment to research, development, CLIMATE TESTING

and testing is the trustworthy foundation of
DELLNER BUBENZER.
 All products designed and manufactured
by DELLNER BUBENZER endures in-
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each product is prepared to meet the
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4
 Product Spec Sheet Catalog

> PRODUCT TYPE

COUPLINGS

K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

KBT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

KH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

KHD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

KL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

KLST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

KST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5
 > COUPLINGS Product Spec Sheet Catalog

K
These couplings are for use in application with
high dynamic loads. Damping of peak torques and
vibrations as well as electrical insulation between
motor and gearbox are further reasons for the use
of this coupling type. The standard material of the
elastic intermediate ring Polyurethane (Vulkollan)
is suitable for a temperature range of -35°C up to
+80°C. For a short time -40°C up to +100°C.
———
TORSIONAL FORCE: 40050 Nm

MAIN FEATURES: OPTIONS:

• Steel coupling, torsionally elastic and bul- • Coupling hubs finish bored and keywayed
let-proof (fail safe) acc. to DIN 6885
• Torque transmission via elastic intermediate ring • Coupling hubs unbored
• Replacement of the elastic intermediate ring or • Coupling hubs pilot bored
the brake disc without moving any equipment • Coupling dynamically balanced according to DIN
• Arrangement of the brake drum on the gear side ISO 21940-11 Grade: G 2.5; G 6.3
to allow the brake torque to be maintained when • Coupling hubs in special lengths
the motor is disengaged • Coupling hubs in special material
• Vast selection of coupling sizes and brake disc • Test certificate DIN EN 10204-3.1
diameters

6 RETURN TO INDEX
 COUPLINGS

Flexible Coupling Type K MB-001161 g

26.08.2022
Dimensions and technical data Reifenrath

A-A l6 b1
B-B
motor side gear side
A MA MA B
bm bg

DR
D2
d4

d2
tm

tg
dm dg
A B

l11 S2 l12
L

All dimensions in mm
Alterations reserved without notice

7
 > COUPLINGS Product Spec Sheet Catalog

KBT
These couplings are for use in machinery where a
torsionally rigid torque is required, especially on
frequently varying loads and speeds.
———
TKMAX: 46000 Nm

MAIN FEATURES: OPTIONS:

• Steel coupling with special tooth pattern • Coupling hubs finish bored and keywayed
• Torque transmission via internal geared sleeve acc. to DIN 6885
and external geared hubs • Coupling hubs unbored
• Replacement of the brake disc or the seals with- • Coupling hubs pilot bored
out moving any equipment • Coupling dynamically balanced according
• High temperature resistance to DIN ISO 21940-11 Grade: G 2.5; G 6.3
• Low wear • Hubs in special dimensions
• Arrangement of the brake drum on the gear side • Hubs in special material
to allow the brake torque to be maintained when • Test certificate DIN EN 10204-3.1
the motor is disengaged
• Vast selection of coupling sizes and brake disc
diameters

8 RETURN TO INDEX
 COUPLINGS

Gear Coupling Type KBT MB-001511 d

24.05.2022
Dimensions and technical data Reifenrath

A-A l M3 l M4 l G3 B-B
motor side MA2 A B MA1 gear side
bm bg

d M4
d M3

d G5

d G3
d G4
d2
tm

tg
l G4

dm dg

A l M2 30 B
l M1 l G1
L

All dimensions in mm
Alterations reserved without notice

9
 > COUPLINGS Product Spec Sheet Catalog

KH
These couplings are for use in application with
high dynamic loads. Damping of peak torques and
vibrations as well as electrical insulation between
motor and gearbox are further reasons for the use
of this coupling type. The standard material of the
elastic intermediate ring Polyurethane (Vulkollan)
is suitable for a temperature range of -35˚C up to
+80˚C. For a short time -40˚C up to +100˚C.
———
TKMAX: 62000 Nm

MAIN FEATURES: OPTIONS:

• Steel coupling, torsionally elastic and bul- • Coupling hubs finish bored and keywayed acc.
let-proof (fail safe) to DIN 6885
• Torque transmission via elastic buffers • Coupling hubs unbored
• Buffer elements can be radially replaced by • Coupling hubs pilot bored
pushing back the retaining ring without moving • Coupling dynamically balanced according
any equipment to ISO 1940 Grade: G 2.5; G 6.3
• Elastic ring provides superb electrical insulating • Coupling hubs in special lengths
characteristics (e.g. prevents leaking currents) • Coupling hubs in special material
• Test certificate DIN EN 10204-3.1

10 RETURN TO INDEX
 COUPLINGS

Flexible Coupling KH MB-001492 g

24.02.2021
Dimensions and technical data Reifenrath

A B
A-A MA
l6
MA
B-B
b b

DR
D2
d3
d4
t

t
d d

A B
l11 S2 l11
L

Coupling KH (size = d4) 300 400 450

TKmax (VKW) Nm 17500 48000 62000
TKN (VKW) Nm 7800 21000 27000
nmax. min-1 3300 2450 2200
d max. mm 110 190 205
D2 mm 170 280 300
DR mm 138 204 245
d3 mm 320 420 470
L mm 625 610 610
l11 mm 253,5 239 239
l6 mm 124 138 138
Weights and moments of inertia of the S2 mm 118 132 132
coupling are not binding,
referring to the max. finish bore! MA (DIN EN ISO 4762-10.9; µ=0,12) Nm 225 440 440
All dimensions in mm Weight kg 98 210 242
Alterations reserved without notice Moment of inertia kgm² 3,010 4,061 5,679

11
 > COUPLINGS Product Spec Sheet Catalog

KHD
These couplings are for use in application with
high dynamic loads. Damping of peak torques and
vibrations as well as electrical insulation between
motor and gearbox are further reasons for the use
of this coupling type. The standard material of the
elastic intermediate ring Polyurethane (Vulkollan)
is suitable for a temperature range of -35°C up to
+80°C. For a short time -40°C up to +100°C.
———
TKMAX: 62000 Nm

MAIN FEATURES: OPTIONS:

• Steel coupling, torsionally elastic and bul- • Coupling hubs finish bored and keywayed
let-proof (fail safe) acc. to DIN 6885
• Torque transmission via elastic buffers • Coupling hubs unbored
• Buffer elements can be radially replaced by • Coupling hubs pilot bored
pushing back the retaining ring without moving • Coupling dynamically balanced according to
any equipment DIN ISO 21940-11 Grade: G 2.5; G 6.3
• Arrangement of the brake drum on the gear side • Coupling hubs in special lengths
to allow the brake torque to be maintained when • Coupling hubs in special material
the motor is disengaged • Test certificate DIN EN 10204-3.1
• Elastic buffers provide superb electrical insulat-
ing characteristics (e.g. prevents leaking
currents)

12 RETURN TO INDEX
 COUPLINGS

Flexible Coupling KHD MB-001204 f

24.02.2021
Dimensions and technical data Reifenrath

l6 b1

A-A A B B-B
motor side gear side
MA MA
bm bg

DR
D2
d3
d4

d2
tm

tg
dm dg

A B
l11 S2 l12
L

Coupling KHD (size = d4) 300 400 450

MBr max. Nm 17500 48000 62000
TKN (VKW) Nm 7800 21000 27000
dm max. / dg max. mm 110 190 205
D2 mm 170 280 300
DR mm 138 204 245
d3 mm 320 420 470
L (b1 = 30mm / 40mm) mm 627,5 640 / 650 640 / 650
l11 mm 256,5 239 239
l12 (b1 = 30mm / 40mm) mm 253 269 / 279 269 / 279
l6 mm 124 138 138
S2 mm 118 132 132
C (b1 = 30mm / 40mm) mm 235 / 230 251 / 256 251 / 256
MA (DIN EN ISO 4762-10.9; µ=0,12) Nm 225 440 440
209 320
800 x 30 nmax. 2200 min-1
7,690 13,428
240 351
900 x 30 nmax. 1950 min-1
10,781 19,091
Brake disc diameter d2 x b1 (mm)

275 386 417

1000 x 30 nmax. 1750 min-1
14,734 26,991 28,592
520
1250 x 30 nmax. 1400 min-1
61,705
245 355
800 x 40 nmax. 2200 min-1
9,729 16,526
Weight kg
287 397
Moment of inertia kgm² 900 x 40 nmax. 1950 min-1
13,511 24,076
Weights and moments of inertia of the 333 444 476
coupling with steel brake disc are not 1000 x 40 nmax. 1750 min-1
binding, referring to the max. finish bore! 18,785 34,610 36,230
All dimensions in mm 614
Alterations reserved without notice 1250 x 40 nmax. 1400 min-1
80,381

13
 > COUPLINGS Product Spec Sheet Catalog

KL
These couplings are for use in application with
high dynamic loads. Damping of peak torques and
vibrations as well as electrical insulation between
motor and gearbox are further reasons for the use
of this coupling type. The standard material of the
elastic intermediate ring Polyurethane (Vulkollan)
is suitable for a temperature range of -35˚C up to
+80˚C. For a short time -40˚C up to +100˚C.
———
TKMAX: 40500 Nm

MAIN FEATURES: OPTIONS:

• Steel coupling, torsionally elastic and bul- • Coupling hubs finish bored and keywayed acc. to
let-proof (fail safe) DIN 6885
• Torque transmission via elastic intermediate ring • Coupling hubs unbored
• Replacement of the elastic intermediate ring • Coupling hubs pilot bored
without moving any equipment • Coupling dynamically balanced according to DIN
• Transmits rotating power from one shaft to ISO 21940-11 Grade: G 2.5; G 6.3
another while accomodating misalignment be- • Coupling hubs in special lengths
tween the two shafts • Coupling hubs in special material
• Elastic ring provides superb electrical insulating • Test certificate DIN EN 10204-3.1
characteristics (e.g. prevents leaking currents)

14 RETURN TO INDEX
 COUPLINGS

Flexible Coupling Type KL MB-001386 e

24.02.2021
Dimensions and technical data Reifenrath

l2 l6 l2
A-A B-B
A MA MA B
b b

DR
D2
d4
t

t
d d
A B
l11 S2 l11
L

All dimensions in mm
Alterations reserved without notice

Weights and moments of inertia are not binding, referring

to the max. finish bore for the sizes 145 to 300 respectively
for a finish bore of 120 mm for the sizes 360 and 400.

Coupling KL (size = d4) 145 170 200 230 260 300 360 400
TKmax (VK60D) Nm 1800 2850 4950 7740 11940 17550 29100 40050
TKN (VK60D) Nm 600 950 1650 2580 3980 5850 9700 13350
nmax. min-1 5250 4500 3750 3250 3000 2500 2150 1900
d max. mm 65 75 95 110 125 140 160 160
D2 mm 92 110 135 160 180 200 225 225
DR mm 66 90 100 115 150 162 215 250
L mm 288 348 417 421 516 533 625 625
l2 mm 93,5 123,5 153,5 150 185,5 183,5 220,5 220,5
l6 mm 71 +2,5 71 +3 81 +3 86 +3,5 101 +4 118 +4 130 +4 130 +4
l11 mm 110 140 170 170 210 210 250 250
S2 mm 68 68 77 81 96 113 125 125
MA (DIN 912-8.8; µ=0,12) Nm 84 84 132 132 206 410 710 710
Weight kg 12,9 20 32,4 46 70 97,3 183,9 201,5
Moment of inertia kgm² 0,034 0,069 0,157 0,299 0,585 1,098 2,568 3,422

15
 > COUPLINGS Product Spec Sheet Catalog

KLST
These couplings are for use in application with
high dynamic loads. Damping of peak torques and
vibrations as well as electrical insulation between
motor and gearbox are further reasons for the use
of this coupling type. The standard material of the
elastic intermediate ring Polyurethane (Vulkollan)
is suitable for a temperature range of -35˚C up to
+80˚C. For a short time -40˚C up to +100˚C.
———
TKMAX: 7950 Nm

MAIN FEATURES: OPTIONS:

• Steel coupling, torsionally elastic and bul- • Coupling hubs finish bored and keywayed acc. to
let-proof (fail safe) DIN 6885
• Torque transmission via elastic intermediate ring • Coupling hubs unbored
• Transmits rotating power from one shaft to • Coupling hubs pilot bored
another while accomodating misalignment be- • Coupling dynamically balanced according to DIN
tween the two shafts ISO 21940-11 Grade: G 2.5; G 6.3
• Elastic ring provides superb electrical insulating
characteristics (e.g. prevents leaking currents)

16 RETURN TO INDEX
 COUPLINGS

Flexible Coupling KLST MB-001205 d

24.02.2021
Dimensions and technical data Reifenrath

L
l11

A-A l2
B-B
A S1 B
b b

l1

DR
D2
d4
t

t
d d

A B

All dimensions in mm
Alterations reserved without notice

Weights and moments of inertia are not binding, referring to the max. finish bore!

Coupling KLST 100 125 145 170 200 230 260

TKmax (VKR) Nm 390 750 1200 1900 3300 5150 7950
TKN (VKR) Nm 130 250 400 630 1100 1700 2650
nmax. min-1 7250 6000 5250 4500 3750 3250 3000
d max. mm 42 55 65 85 95 105 125
D2 mm 65 85 95 120 135 150 180
DR mm 42 55 66 90 100 115 150
d4 mm 105 126 145 170 200 230 260
L mm 187 253 259 321 328 390 400
l1 mm 80,5 110,5 110,5 140,5 140 170 170,5
l2 mm 68,5 98 97 126 124 151 146
l11 mm 103,5 139 144,5 175,5 181,5 212,5 222,5
S1 mm 3,0 +2,0 3,5 +2,5 4,0 +2,5 5,0 +3,0 6,5 +3,0 7,5 +3,0 7,0 +4,0
Weight kg 4,1 8,1 10,3 17,0 23,9 35,5 52,4
Moment of inertia kgm² 0,005 0,014 0,025 0,058 0,112 0,208 0,426

17
 COUPLINGS

Flexible Coupling KLST-BS MB-001456 e

24.02.2021
Dimensions and technical data Reifenrath

L
B

A-A B-B
motor side A B gear side
bm bg

l1 l1

DR
D2
d2
d4
tm

tg
dm dg
A B
MA

l2 C1
S1 l11 All dimensions in mm
Alterations reserved without notice

Coupling KLST-BS 100 125 145 170 200 230 260

MBr max. at max. disc-Ø Nm 260 310 730 1350 2650 3800 7950
TKN (VKR) Nm 130 250 400 630 1100 1700 2650
nmax. at max. disc-Ø min-1 6800 4800 3800 3400 3000 2700 2400
dm max. + dg max. mm 42 55 65 85 95 105 125
D2 mm 65 85 95 120 135 150 180
DR mm 42 55 66 90 100 115 150
d4 mm 105 126 145 170 200 230 260
L mm 187 253 259 321 328 390 400
l1 mm 80,5 110,5 110,5 140,5 140 170 170,5
l2 mm 68,5 98 97 126 124 151 146
l11 mm 103,5 139 144,5 175,5 181,5 212,5 222,5
C1 mm 70,5 99,5 98 127,5 125,5 153 148,5
S1 mm 3,0 +2,0 3,5 +2,5 4,0 +2,5 5,0 +3,0 6,5 +3,0 7,5 +3,0 7,0 +4,0
MA (DIN 912-8.8; µ=0,12) Nm 24 24 48 48 84 84 206
kg 11,1 14,7 Weight
250 x 20 kgm² 0,065 0,073 Moment of inertia
of the coupling with steel brake disc

19,3
315 x 20
Brake disc diameter d2 x B (mm)

0,164
29,7 31,6
355 x 30 0,377 0,388
37,8 43,5 49,3
400 x 30 0,611 0,639 0,688
45,7 51,3 57,1
450 x 30 0,965 0,993 1,042
60,0 65,9 75,5 90,1
500 x 30 1,487 1,536 1,618 1,813
77,6 87,2 101,8
560 x 30 2,360 2,442 2,636
Weights and moments of
inertia are not binding, 102,5 117,1
630 x 30 referring to the max. 3,802 3,996
finish bore! 136,8
710 x 30 6,215

18
 COUPLINGS

Flexible Coupling KLST-BT MB-001252 d

24.02.2021
Dimensions and technical data Reifenrath

L
B C

A-A B-B
motor side A B gear side
bm bg

l1 l1

DR
DB

D2
d4
tm

tg
dm dg

A B
MA
l2 C1
S1 l11

All dimensions in mm
Alterations reserved without notice

Coupling KLST-BT 100 125 145 170 200 230 260

MBr max. at max. drum-Ø Nm 260 310 730 1350 2650 3800 7950
TKN (VKR) Nm 130 250 400 630 1100 1700 2650
dm max. + dg max. mm 42 55 65 85 95 105 125
D2 mm 65 85 95 120 135 150 180
DR mm 42 55 66 90 100 115 150
d4 mm 105 126 145 170 200 230 260
L mm 187 253 259 321 328 390 400
l1 mm 80,5 110,5 110,5 140,5 140 170 170,5
l2 mm 68,5 98 97 126 124 151 146
l11 mm 103,5 139 144,5 175,5 181,5 212,5 222,5
C1 mm 70,5 99,5 98 127,5 125,5 153 148,5
S1 mm 3,0 +2,0 3,5 +2,5 4,0 +2,5 5,0 +3,0 6,5 +3,0 7,5 +3,0 7,0 +4,0
MA (DIN 912-8.8; µ=0,12) Nm 24 24 48 48 84 84 206
mm 45 74 70,5 C
200 x 75
kg 8,8 12,7 14,9 Weight
Brake drum diameter DB x B (mm)

nmax. 2870 min-1 of the coupling with brake drum

kgm² 0,041 0,050 0,061 Moment of inertia
62,5 92,5
250 x 95
19,4 25,7
nmax. 2300 min-1 0,136 0,167
78,5 79,5
315 x 118
35,1 41,1
nmax. 1820 min-1 0,403 0,452
67,5 96
400 x 150
Weights and moments of 57,7 68,2
nmax. 1440 min-1 inertia are not binding, 1,154 1,242
referring to the max. 85 82,5
500 x 190 finish bore! 95,5 110,8
nmax. 1150 min-1 3,167 3,370

19
 > COUPLINGS Product Spec Sheet Catalog

KST
These couplings are for use in application with
high dynamic loads. Damping of peak torques and
vibrations as well as electrical insulation between
motor and gearbox are further reasons for the use
of this coupling type. The standard material of the
elastic intermediate ring Polyurethane (Vulkollan)
is suitable for a temperature range of -35˚C up to
+80˚C. For a short time -40˚C up to +100˚C.
———
TKMAX: 7950 Nm

MAIN FEATURES: OPTIONS:

• Steel coupling, torsionally elastic and bul- • Coupling hubs finish bored and keywayed acc. to
let-proof (fail safe) DIN 6885
• Torque transmission via elastic intermediate ring • Coupling hubs pilot bored
• Transmits rotating power from one shaft to • Coupling dynamically balanced according to DIN
another while accomodating misalignment be- ISO 21940-11 Grade: G 2.5; G 6.3
tween the two shafts
• Elastic ring provides superb electrical insulating
characteristics (e.g. prevents leaking currents)

20 RETURN TO INDEX
 COUPLINGS

Flexible Coupling KST MB-001206 c

24.02.2021
Dimensions and technical data Reifenrath

L
l11

A-A l2 S1
B-B
A B
b b

l1

DR
D2
d4
t

t
d d

A B

All dimensions in mm
Alterations reserved without notice

Weights and moments of inertia are not binding, referring to the max. finish bore!

Coupling KST 100 125 145 170 200 230 260

TKmax (VKR) Nm 390 750 1200 1900 3300 5150 7950
TKN (VKR) Nm 130 250 400 630 1100 1700 2650
nmax. min-1 7250 6000 5250 4500 3750 3250 3000
d max. mm 42 55 65 85 95 105 125
D2 mm 65 85 95 120 135 150 180
DR mm 42 55 66 90 100 115 150
d4 mm 105 126 145 170 200 230 260
L mm 125 145 160 190 245 270 285
l1 mm 49,5 56,5 61 75 98,5 110 113
l2 mm 37,5 44 47,5 60,5 82,5 91 88,5
l11 mm 72,5 85 95 110 140 152,5 165
S1 mm 3,0 +2,0 3,5 +2,5 4,0 +2,5 5,0 +3,0 6,5 +3,0 7,5 +3,0 7,0 +4,0
Weight kg 3,1 5,4 7,5 11,3 19,3 27,2 40,7
Moment of inertia kgm² 0,004 0,011 0,020 0,043 0,096 0,173 0,355

21
 COUPLINGS

Flexible Coupling KST-BS MB-001543 c

24.02.2021
Dimensions and technical data Reifenrath

L
B

A-A B-B
motor side A B gear side
bm bg

l1 l1

DR
D2
d2
d4
tm

tg
dm dg

A B
MA

l2 C1
S1 l11 All dimensions in mm
Alterations reserved without notice

Coupling KST-BS 100 125 145 170 200 230 260

MBr max. at max. disc-Ø Nm 260 310 730 1350 2650 3800 7950
TKN (VKR) Nm 130 250 400 630 1100 1700 2650
nmax. at max. disc-Ø min-1 6800 4800 3800 3400 3000 2700 2400
dm max. + dg max. mm 42 55 65 85 95 105 125
D2 mm 65 85 95 120 135 150 180
DR mm 42 55 66 90 100 115 150
d4 mm 105 126 145 170 200 230 260
L mm 125 145 160 190 245 270 285
l1 mm 49,5 56,5 61 75 98,5 110 113
l2 mm 37,5 44 47,5 60,5 82,5 91 88,5
l11 mm 72,5 85 95 110 140 152,5 165
C1 mm 39,5 45,5 48,5 62 84 93 91
S1 mm 3,0 +2,0 3,5 +2,5 4,0 +2,5 5,0 +3,0 6,5 +3,0 7,5 +3,0 7,0 +4,0
MA (DIN 912-8.8; µ=0,12) Nm 24 24 48 48 84 84 206
kg 10,1 12,0 Weight
250 x 20 kgm² 0,064 0,070 Moment of inertia
of the coupling with steel brake disc

16,5
315 x 20
Brake disc diameter d2 x B (mm)

0,161
27,0 28,8
355 x 30 0,374 0,383
35,0 37,8 44,7
400 x 30 0,606 0,624 0,672
42,9 45,6 52,5
450 x 30 0,960 0,978 1,026
54,3 61,3 67,2 78,4
500 x 30 1,472 1,520 1,583 1,742
73,0 78,9 90,1
560 x 30 2,344 2,407 2,565
Weights and moments of
inertia are not binding, 94,2 105,4
630 x 30 referring to the max. 3,767 3,925
finish bore! 125,1
710 x 30 6,144

22
 COUPLINGS

Flexible Coupling KST-BT MB-001546 c

24.02.2021
Dimensions and technical data Reifenrath

L
B C

A-A B-B
motor side A B gear side
bm bg

l1 l1

DR
DB

D2
d4
tm

tg
dm dg
A B
MA
l2 C1
S1 l11

All dimensions in mm
Alterations reserved without notice

Coupling KST-BT 100 125 145 170 200 230 260

MBr max. at max. drum-Ø Nm 260 310 730 1350 2650 3800 7950
TKN (VKR) Nm 130 250 400 630 1100 1700 2650
dm max. + dg max. mm 42 55 65 85 95 105 125
D2 mm 65 85 95 120 135 150 180
DR mm 42 55 66 90 100 115 150
d4 mm 105 126 145 170 200 230 260
L mm 125 145 160 190 245 270 285
l1 mm 49,5 56,5 61 75 98,5 110 113
l2 mm 37,5 44 47,5 60,5 82,5 91 88,5
l11 mm 72,5 85 95 110 140 152,5 165
C1 mm 39,5 45,5 48,5 62 84 93 91
S1 mm 3,0 +2,0 3,5 +2,5 4,0 +2,5 5,0 +3,0 6,5 +3,0 7,5 +3,0 7,0 +4,0
MA (DIN 912-8.8; µ=0,12) Nm 24 24 48 48 84 84 206
mm 14 20 21 C
200 x 75
kg 7,8 10,0 12,1 Weight
Brake drum diameter DB x B (mm)

nmax. 2870 min-1 of the coupling with brake drum

kgm² 0,040 0,047 0,056 Moment of inertia
13 27
250 x 95
16,6 20,0
nmax. 2300 min-1 0,131 0,152
13 38
315 x 118
29,4 36,5
nmax. 1820 min-1 0,388 0,436
26 36
400 x 150
Weights and moments of 53,1 59,9
nmax. 1440 min-1 inertia are not binding, 1,138 1,207
referring to the max. 25 25
500 x 190 finish bore! 87,2 99,1
nmax. 1150 min-1 3,132 3,299

23
 > COUPLINGS Product Spec Sheet Catalog

N
The Hub with Brake Disc Type N + NX is
appropriate for all drives, where the brake is not
located between motor and gearbox, like brake
installation on the second gear box shaft or at the
motor end shaft.
———
TKMAX: 40050 Nm

MAIN FEATURES: OPTIONS:

• Hub/disc combination for easy exchange of • Hubs finish bored and keywayed
brake disc (type N) acc. to DIN 6885
• High accident prevention by fastening ring, no • Hubs pilot bored
rotating nuts (type N) • Hubs with brake disc, dynamically balanced
• Exchange of brake disc without removing the according to DIN ISO 21940-11 Grade: G 2.5;
hub (type N) G 6.3
• Simple, one-piece design with 20 mm brake disc • Hubs in special dimensions
thickness for SB8.11 + SB17 series brakes (type • Hubs in special material
NX) • Test certificate DIN EN 10204-3.1

24 RETURN TO INDEX
 COUPLINGS

Hub with Brake Disc Type N MB-001722 b

12.11.2021
Dimensions and technical data Reifenrath

b1

MA
A A-A
b
D3

D2
d2

d4

t
dW

C
l 12
All dimensions in mm
Alterations reserved without notice

25
 > COUPLINGS Product Spec Sheet Catalog

NX
The Hub with Brake Disc Type N + NX is
appropriate for all drives, where the brake is not
located between motor and gearbox, like brake
installation on the second gear box shaft or at the
motor end shaft.
———
TORSIONAL FORCE: 40050 Nm

MAIN FEATURES: OPTIONS:

• Hub/disc combination for easy exchange of • Hubs finish bored and keywayed acc. to DIN
brake disc (type N) 6885
• High accident prevention by fastening ring, no • Hubs unbored
rotating nuts (type N) • Hubs pilot bored
• Exchange of brake disc without removing the • Hubs with brake disc, dynamically balanced
hub (type N) according to DIN ISO 21940-11 Grade: G 2.5;
• Simple, one-piece design with 20 mm brake disc G 6.3
thickness for SB8.11 + SB17 series brakes (type • Hubs in special dimensions
NX) • Hubs in special material
• Test certificate DIN EN 10204-3.1

26 RETURN TO INDEX
 COUPLINGS

Hub with Brake Disc Type NX MB-001724 a

25.02.2021
Dimensions and technical data Reifenrath

b1

A-A
A b

D2
d2

t
A dW

* Higher speeds possible by All dimensions in mm

using sintered linings Alterations reserved without notice

27
 PRODUCT TYPE

COUPLINGS

2024
PRODUCT DATA SHEET
CATALOG
© 2024, DELLNER BUBENZER. ALL RIGHTS RESERVED. www.dellnerbubenzer.com