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