Bell-house Mounted Arrangement. Highly Flexible K Coupling K Couplings for bell-house mounted arrangements are the only coupling type providing a blind assembly connection. They are specially designed for applications where the driven machine is directly flanged onto the engine flywheel housing. The assembly is done directly when driver and driven machine are bolted together. The K Coupling shifts resonance frequencies below idle speed and dampens torsional vibrations and shock loads. As a result, operational stability and thus productivity of your system or vehicle increase. Typical applications are rail vehicles, construction machinery and gensets. Depending on the size, up to 1 300 000 Nm can be safely transferred.
For bell-house mounted arrangements, we offer different designs of blind assembly couplings. They can be distinguished by the way the blind assembly capability is implemented: Positive engagement between an inner and outer ring by means of pins Positive engagement by means of splined hub and shaft Positive engagement between an inner and outer ring by means of pins Series 3 Positive engagement by means of splined hub and shaft Series 32 2
Product range highly flexible blind assembly couplings Designation Type of coupling Bearing type Frictional damping Connection Notes BR 32 BR 34 BR 3 BR 3 Single element blind assembly coupling Single element blind assembly coupling Twin element blind assembly coupling Twin element blind assembly coupling yes Engine flywheel splined shaft yes Engine flywheel splined shaft no Engine flywheel splined shaft yes Engine flywheel splined shaft BR 371 Twin element blind assembly coupling Antifriction bearing no Engine flywheel generator solid shaft for single-bearing generators BR 372 Single element blind assembly coupling Antifriction bearing yes Engine flywheel generator solid shaft for single-bearing generators, short installed length 3
Coupling parameters Single standard elastomer element, preloaded, with frictional damping Series 32 Series 34 Series 3 Size K 005 K 0 K 015 K 020 K 025 K 030 K 035 K 040 K 045 Shore hardness Nominal torque Maximum torque Admissible continuous alt. torque Dynamic torsional rigidity Admissible power loss Relative damping sha [ ] T KN [Nm] T Kmax [Nm] T KW [Nm] C Tdyn [Nm/rad] P KV [W] ψ 200 220 240 20 300 330 30 350 30 430 40 450 5 570 20 50 0 730 750 40 30 30 0 0 1330 1 240 1 400 1 550 1 7 1 0 1 0 2 0 2 3 540 00 0 720 70 00 0 1 00 1 050 1 170 1 20 1 440 1 350 1 530 1 7 1 0 1 770 1 0 2 10 2 430 2 250 2 520 2 70 3 00 2 0 3 270 3 30 3 0 3 720 4 200 4 50 5 130 5 040 5 70 300 30 5 70 75 5 0 5 5 5 0 135 150 170 10 200 215 200 220 245 225 250 20 3 20 325 35 400 370 420 45 515 420 470 525 50 50 1 400 2 0 4 0 1 300 2 000 3 000 200 1 700 2 00 4 000 0 2 0 3 00 5 000 00 2 00 4 00 00 13 00 3 00 000 00 17 50 4 00 7 00 700 22 00 000 00 15 000 2 0 500 13 300 20 400 3 500 0 1. 0 1. 130 1. 150 1. 170 1. 200 1. 230 1. 20 1. 3 1. 4 Dynamic torsional rigidity at 20 C Adm. temperature at the natural rubber surface between -40 to +0 C
Size K 050 K 055 K 00 K 05 K 070 K 075 K 00 K 05 K 00 K 05 K 0 K 5 K 0 K 5 K 0 Shore hardness Nominal torque Maximum torque Admissible continuous alt. torque Dynamic torsional rigidity Admissible power loss Relative damping sha [ ] T KN [Nm] T Kmax [Nm] T KW [Nm] C Tdyn [Nm/rad] P KV [W] ψ 2 170 2 440 2 7 2 0 2 0 3 30 3 730 4 0 4 400 4 50 5 500 050 300 7 0 7 00 700 0 200 400 500 400 000 15 500 17 0 1 00 1 000 21 0 23 200 23 00 2 00 2 00 32 00 35 700 41 200 45 400 4 000 4 500 54 00 0 00 700 4 400 72 400 0 500 500 0 000 0 000 0 000 0 000 5 000 000 131 000 4 200 130 000 0 12 300 17 500 11 0 000 201 300 221 500 5 7 320 130 70 70 00 10 330 13 200 50 1 500 1 150 1 00 21 300 23 700 2 0 27 300 30 00 34 200 37 500 37 200 42 000 4 500 51 300 50 700 57 000 3 300 00 71 700 0 700 700 700 200 3 300 4 00 134 700 5 500 13 000 000 200 0 13 200 217 000 240 000 25 500 240 000 270 000 300 000 330 000 315 000 354 000 30 000 432 00 30 000 43 000 47 000 535 500 43 300 542 000 04 000 4 500 540 0 750 750 40 35 1 030 1 0 1 240 1 375 1 515 1 20 1 420 1 50 1 740 1 20 2 040 2 20 2 500 2 40 2 00 3 0 3 420 3 30 3 00 4 220 4 40 4 70 5 30 5 0 50 0 7 500 320 10 700 20 0 13 340 0 40 1 0 17 700 1 000 1 000 20 000 22 000 21 000 23 00 2 200 2 40 2 000 2 220 32 40 35 700 32 220 3 240 40 20 44 300 500 17 0 2 000 50 000 00 23 00 3 400 70 500 21 400 34 700 53 000 3 400 31 000 50 000 77 000 500 44 300 71 500 0 000 213 400 1 000 000 151 000 20 000 2 300 133 000 205 000 37 000 7 000 1 000 20 000 52 000 21 000 30 000 525 00 1 00 000 245 000 400 000 00 000 1 200 000 320 000 520 000 70 000 1 550 000 430 000 0 000 1 0 000 2 0 000 20 000 00 000 1 500 000 3 000 000 30 000 1 323 000 2 000 000 4 000 000 1 0 000 1 74 000 2 700 000 5 300 000 350 1. 420 1. 5 1. 30 1. 70 1. 00 1. 1 00 1. 1 20 1. 1 530 1. 1. 1. 1. 1. 1. 1. Dynamic torsional rigidity at 20 C Adm. temperature at the natural rubber surface between -40 to +0 C 5
Coupling parameters Twin standard elastomer elements in parallel, preloaded, without friction damping Series 3 Series 371 Series 372 Size K 005 K 0 K 015 K 020 K 025 K 030 K 035 K 040 K 045 Shore hardness Nominal torque Maximum torque Admissible continuous alt. torque Dynamic torsional rigidity Axial spring rigidity Radial spring rigidity Admissible power loss Relative damping sha [ ] T KN [Nm] T Kmax [Nm] T KW [Nm] C Tdyn [Nm/rad] C ax [N/mm] C rad [N/mm] P KV [W] ψ 30 400 440 40 520 00 0 720 700 70 0 0 00 1 020 1 0 1 240 1 1 320 1 40 1 20 1 500 1 0 1 0 2 00 1 20 2 2 420 2 0 2 40 2 00 3 0 3 420 3 30 3 70 4 200 4 20 1 00 1 200 1 320 1 440 1 50 1 00 1 0 2 10 2 0 2 340 2 50 2 0 2 700 3 00 3 420 3 720 3 540 3 0 4 30 4 0 4 500 5 040 5 50 5 70 540 7 20 7 0 7 440 400 300 20 00 340 00 13 0 130 0 150 170 2 230 250 240 270 300 340 320 30 400 430 30 400 440 40 450 500 50 20 50 50 730 00 740 40 30 30 40 40 1 050 1 10 1 00 2 00 4 200 200 2 00 4 000 000 400 3 400 5 200 000 1 200 4 200 7 200 000 21 200 5 00 200 13 00 27 200 7 200 000 17 00 35 00 200 15 200 23 400 45 200 000 1 00 30 000 5 200 17 000 2 00 40 00 7 000 2 200 3 000 3 00 000 2 00 3 400 4 000 00 3 000 3 00 4 400 7 00 3 400 4 400 5 000 00 3 00 5 000 5 00 000 4 200 5 00 00 200 4 00 00 7 00 00 5 400 7 000 00 000 000 000 000 1 000 700 00 1 300 2 500 00 1 000 1 400 2 00 00 1 0 1 00 3 0 1 000 1 200 1 700 3 400 1 0 1 300 1 00 3 00 1 300 1 500 2 0 4 200 1 500 1 700 2 500 4 00 1 00 1 00 2 00 5 300 1 00 2 0 3 000 5 00 0 130 150 170 200 220 250 20 340 Dynamic torsional rigidity at 20 C Adm. temperature at the natural rubber surface between -40 to +0 C
Size K 050 K 055 K 00 K 05 K 070 K 075 K 00 K 05 K 00 K 05 K 0 K 5 K 0 K 5 K 0 Shore hardness Nominal torque Maximum torque Admissible continuous alt. torque Dynamic torsional rigidity Axial spring rigidity Radial spring rigidity Admissible power loss Relative damping sha [ ] T KN [Nm] T Kmax [Nm] T KW [Nm] C Tdyn [Nm/rad] C ax [N/mm] C rad [N/mm] P KV [W] ψ 4 340 4 0 5 420 5 0 5 0 720 7 40 220 00 00 000 0 00 200 15 00 17 400 1 200 20 400 22 00 25 000 24 00 2 000 31 000 34 200 33 00 3 000 42 200 4 400 47 00 53 00 5 00 5 00 71 400 2 400 0 00 000 7 000 200 1 200 133 400 00 4 00 11 000 177 000 10 000 000 200 000 220 000 2 000 23 000 22 000 2 400 20 000 22 200 324 00 357 000 322 200 32 000 402 00 443 000 13 020 40 1 20 17 40 17 40 20 10 22 30 24 0 2 400 2 700 33 000 3 300 37 00 42 00 47 400 52 200 54 00 1 200 400 75 000 74 400 4 000 3 000 2 00 1 400 1 000 00 13 200 3 400 11 400 17 400 17 400 1 400 22 00 24 00 2 400 21 000 32 000 32 000 400 200 3 400 434 000 40 000 531 000 40 000 540 000 00 000 0 000 30 000 70 000 70 000 5 200 70 000 7 000 74 000 1 071 000 00 1 04 000 1 20 000 1 32 000 1 00 1 220 1 30 1 500 1 500 1 0 1 70 2 00 2 200 2 40 2 750 3 030 2 520 2 40 3 10 3 40 3 40 4 00 4 50 5 000 4 0 5 00 200 40 70 7 00 440 20 50 70 0 13 10 13 320 15 000 1 40 1 320 1 400 21 40 24 240 2 0 25 70 2 0 32 200 35 400 32 000 3 000 40 000 44 000 42 000 47 200 52 400 57 0 52 000 5 440 4 20 71 400 4 440 72 40 0 520 00 21 000 34 200 52 000 0 000 2 200 47 200 72 00 1 000 42 00 400 000 20 00 2 000 0 000 154 000 2 000 00 3 000 220 000 42 00 2 000 1 000 302 000 50 000 14 00 2 000 4 000 74 000 234 000 37 000 50 000 1 4 000 432 000 720 000 1 051 200 2 10 000 40 000 00 000 1 200 000 2 400 000 40 000 1 040 000 1 50 000 3 0 000 0 000 1 30 000 2 200 000 4 200 000 1 240 000 2 000 000 3 000 000 000 000 1 0 000 2 4 000 4 000 000 000 000 2 200 000 3 52 000 5 400 000 00 000 00 000 200 1 000 7 400 000 500 20 000 200 000 13 00 22 000 00 13 000 1 000 2 000 000 15 000 1 00 30 000 500 17 000 21 00 34 000 000 1 000 24 500 3 000 1 000 21 000 27 000 42 000 1 00 2 400 32 450 50 00 2 000 2 300 3 300 400 2 200 2 00 3 00 7 300 2 00 3 000 4 400 400 2 00 3 400 4 00 500 3 300 3 00 5 700 00 3 00 4 400 400 300 4 300 5 000 7 300 000 5 000 5 00 400 1 400 30 7 40 70 20 00 30 40 570 0 40 0 1 10 1 30 1 0 Dynamic torsional rigidity at 20 C Adm. temperature at the natural rubber surface between -40 to +0 C 7
Dimensions Series 32 K øz øx øy holes T P ød øf L E Size Flywheel Flywheel connecting dimensions Hub dimensions Mass Mass moments of inertia K 005 K 0 K 015 K 020 K 025 K 030 K 035 K 040 SAE J20 X g7 Y ±0,2 Z T K D max F P L E m [kg].5 7.5 7.5 7.5.5.5.5.5 215. 241.3 241.3 23.5 241.3 23.5 23.5 3.3 3.3 3.3 4.7 4.7 4.7 200.0 222.3 222.3 244.5 222.3 244.5 244.5 25.3 25.3 25.3 43.2 43.2 43.2 45 5 45 55 55 55 5 55 55 1 5 4 5 7 5 4 5 73 5 0 0 7 5 0 0 5 132 0 7 5.3 5. 7.2 7.7 7.3 7..2.3 13. 15.3 17.0 1.7 25. 24.4 30.4 Primary side J A 0.023 0.030 0.03 0.045 0.040 0.04 0.0 0.05 0.2 0.15 0.131 0.177 0.4 0.24 0.521 Secondary side J I K 045 4.7 43.2 1 130 0 3. 0.50 0.07 K 050 4.7 43.2 135 170 130 7 54.1 0.00 0.1 K 055 4.7 43.2 30 150 1 150 1 75.1 1.40 0.25 K 00 K 05 K 070 1 1 1 21 21 24 571.5 571.5 73.1 73.1 733.4 4.0 542. 542. 41.4 41.4 2.2 1 1 1 1 20 42 42 45 22 40 33 170 2 170 15 244 10 201 220 274 2 22 K 075 24 733.4 2.2 20 3 245 305 230 245 2.5 2.1 K 00 7.0 72.0 24 24 275 342 250 20 34 20.2 4.5 Dimensions in mm Mass and mass moment of inertia are based on the use of steel Aluminum is available on request Sizes bigger K 00 are available on request; splined hub (ød) according to DIN/ANSI or on request 27.1 32.2 0 2 3 13 215 230 0.22 0.530 2.24 3.1 3.55 5.3 7.2 7.5 0.002 0.004 0.00 0.00 0.013 0.027 0.033 0.00 0.41 0.70 1.
Dimensions Series 34 K U L øz L E øx øy holes T P ød øf øa Size Flywheel Flywheel connecting dimensions Hub dimensions Mass Mass moments of inertia SAE J20 X g7 Y ±0,2 Z T K D max F P A U L L E m [kg] Primary side J A Secondary side J I K 005.5 7.5 215. 241.3 200.0 222.3 3 5 5 17 4.0 37.2 5 5.7.4 0.02 0.035 0.002 0.002 K 0 7.5 241.3 23.5 222.3 244.5 4 1 4.0 3.7 7.5.1 0.040 0.051 0.004 0.004 K 015 241.3 23.5 244.5 25.3 4 2 4.0 42..4.5 0.05 0.0 0.00 0.00 K 020.5 23.5 3.3 25.3 5 4 2 240 5.3 4.4 2 13. 15.7 0.130 0. 0.0 0.0 K 025.5 3.3 25.3 13 13 5 4 2 254 5.3 4.7 2 15.5 17.5 0.153 0.20 0.0 0.0 K 030.5 4.7 43.2 73 0 2 22 5.3 55.7 2 22.5 30.5 0.251 0.54 0.031 0.031 K 035 K 040 K 045 K 050 K 055 K 00 K 05.5 1 1 1 1 1 1 21 21 24 4.7 4.7 4.7 4.7 571.5 571.5 73.1 73.1 733.4 43.2 43.2 4.0 43.2 4.0 43.2 4.0 4.0 542. 542. 41.4 41.4 2.2 1 1 1 1 20 15 15 1 1 17 17 1 1 20 20 22 22 24 24 73 0 2 302 5.3 5.0 2 132 135 334.4 3.7 135 130 135 35.4.2 135 1 170 402 7.5 77.5 1 15 447..1 15 2 2 21 47. 7.2 21 14 244 255 55.0.5 255 K 070 24 733.4 2.2 20 2 274 25 31.5 0.7 25 242. 2. K 075 753.0 720.0 22 32 204 305 315 7.5 135.5 315 30.7 3.0 K 00 35.0 7.0 24 3 227 342 352 73.5.2 352 41 24.3.02 24. 33.4 41.3 4.2 44. 50.1 1.1. 4.4 1. 5 132 17 10 0.302 0.70 0.77 1.070 0.7 1.1 1.13 1.47 1.7 2.50 2.24 3.1 3.55 5.3 0.037 0.037 0.071 0.071 0.0 0.0 0.2 0.2 0.34 0.34 0.4 0.4 1.22 1.22 Dimensions in mm Mass and mass moment of inertia are based on the use of steel Aluminum is available on request Sizes bigger K 00 are available on request; splined hub (ød) according to DIN/ANSI or on request
Dimensions Series 3 K U øz øx øy holes T P ød øf øa L L E Size Flywheel Flywheel connecting dimensions K 005 K 0 K 015 K 020 Hub dimensions Mass SAE J20 X g7 Y ±0,2 Z T K D H7 F P A U L L E m [kg].5 7.5 7.5.5 215. 241.3 241.3 23.5 23.5 3.3 3.3 200.0 222.3 222.3 244.5 244.5 25.3 25.3 3 5 5 17 4.0 53.2 5 4 74 1 4.0 5.0 4 74 2 4.0 4.2 5 2 240 5.3.2 2 7.4.1.7.4.7. 17. 1.7 Mass moments of inertia Primary side J A 0.030 0.03 0.050 0.01 0.04 0. 0.15 0.20 Secondary side J I 0.003 0.003 0.00 0.00 0.0 0.0 0.01 0.01 K 025.5 3.3 25.3 13 13 5 2 254 5.3 73. 2 20. 22. 0.12 0.24 0.024 0.024 K 030.5 4.7 43.2 74 5 2 22 5.3 3.4 2 2. 3. 0.30 0.50 0.050 0.050 K 035 K 040 K 045 K 050 K 055 K 00 K 05.5 1 1 1 1 1 1 21 21 24 4.7 4.7 4.7 4.7 571.5 571.5 73.1 73.1 733.4 43.2 43.2 4.0 43.2 4.0 43.2 4.0 4.0 542. 542. 41.4 41.4 2.2 1 1 1 1 20 15 15 1 1 17 17 1 1 20 20 22 22 24 24 74 5 2 302 5.3.0 2 13 135 334.4 7.2 135 13 135 35.4 4.0 135 1 17 402 7.5.2 15 15 447. 133.0 15 2 220 21 47.. 21 14 252 255 55.0 17.0 255 K 070 24 733.4 2.2 20 2 20 25 31.5 17.0 25 3.23 3.1 K 075 753.0 720.0 22 32 205 3 315 7.5 20.0 315 30 1.1 5.3 K 00 35.0 7.0 24 3 22 34 352 73.5 231.0 352 530 32.2.1 Dimensions in mm Mass and mass moment of inertia are based on the use of steel Aluminum is available on request Sizes bigger K 00 are available on request; splined hub (ød) according to DIN/ANSI or on request 33.0 41. 52.1 57.0 5.4 4. 0.2 5.7 0 1 213 225 0.37 0.75 0.13 1.21 1. 1.41 1.50 1.3 2.57 3. 4. 5.0.55. 0.02 0.02 0.1 0.1 0.1 0.1 0.320 0.320 0.532 0.532 0.2 0.2 1.2 1.2
Dimensions Series 3 L L E K øx øy holes T P øz ød øf øa Size Flywheel Flywheel connecting dimensions Hub dimensions Mass Mass moments of inertia SAE J20 X g7 Y ±0,2 Z T K D H7 F P A L L E m [kg] Primary side J A Secondary side J I K 070 21 73.15 41.4 17 0 0 21 200 54 205 17.4 27 2.44 13.34 Dimensions in mm Mass and mass moment of inertia are based on the use of steel Aluminum is available on request Sizes bigger K 070 are available on request; splined hub (ød) according to DIN/ANSI or on request
Dimensions Series 371 K øz øx øy holes T P ød øf øa L L E Size Flywheel Flywheel connecting dimensions Hub dimensions Mass Mass moments of inertia SAE J20 X g7 Y ±0,2 Z T K D H7 F P A L L E m [kg] Primary side J A Secondary side J I K 040 4.7 43.2 42.5 0 130 130 334 133.1 233.5 72.0 1.777 0.02 K 045 4.7 43.2 40.5 0 130 135 35 130.5 23.5 0.7 1.752 0.5 K 050 475.0 43.2 47.5 5 220 131 402 4.7 215.7 1.4 2.43 0.400 Dimensions in mm Mass and mass moment of inertia are based on the use of steel Aluminum is available on request Sizes bigger K 050 are available on request; splined hub (ød) according to DIN/ANSI or on request
Dimensions Series 372 L E K ød øx øy holes T 1 øz 2 øc øb holes T 2 øa øz 1 Size Flywheel Flywheel connecting dimensions Hub dimensions Mass Mass moments of inertia SAE J20 X g7 Y ±0,2 Z 1 T 1 K E C H7 B ±0,2 Z 2 T 2 A L D m [kg] Primary side J A Secondary side J I K 00 21 73.1 41.35 17 2 35 23 300 350 25 1 73 15 25 40.0 35.021 4.7 Dimensions in mm Mass and mass moment of inertia are based on the use of steel Aluminum is available on request Sizes bigger K 00 are available on request; splined hub (ød) according to DIN/ANSI or on request 13
Maximum admissible speeds Series BR 32 BR 34, 3, 3, 371, 372 Size Aluminum C 45 GGG 40 C 45 GGG 40 K 005 13 300 00 0 00 0 K 0 500 400 00 400 00 K 015 500 00 200 00 200 K 020 700 700 7 400 700 7 400 K 025 000 0 00 0 00 K 030 000 7 200 200 7 200 200 K 035 7 400 700 5 700 700 5 700 K 040 00 0 5 200 0 5 200 K 045 0 5 00 4 00 5 00 4 00 K 050 5 00 5 000 4 300 5 000 4 300 K 055 5 000 4 500 3 00 4 500 3 00 K 00 4 300 3 00 3 400 3 00 3 400 K 05 3 00 3 500 3 000 3 500 3 000 K 070 3 400 3 0 2 700 3 0 2 700 K 075 3 0 2 00 2 400 2 00 2 400 K 00 2 00 2 500 2 200 2 500 2 200 K 05 2 500 2 300 1 00 2 300 1 00 K 00 2 200 2 000 1 700 2 000 1 700 All speeds stated in rpm. Higher speeds available on request with special designs Speeds for sizes bigger K 00 available on request
Admissible shaft misalignments Size Maximum admissible radial misalignment during load peaks Continuous admissible radial misalignment r at 00 rpm Continuous admissible axial misalignment Continuous admissible angular misalignment at 00 rpm [mm] [mm] [mm] [ ] K 005 1.5 1.0 0. 1 K 0 1.5 1.2 1.0 1 K 015 1.7 1.3 1.2 1 K 020 3.0 1.4 1.4 1 K 025 3.5 1.5 1.5 1 K 030 4.0 1. 1.7 1 K 035 4.0 1.7 1. 1 K 040 4.0 1. 2.0 1 K 045 4.0 2.0 2.1 1 K 050 5.0 2.2 2.3 1 K 055 5.0 2.4 2. 1 K 00 5.0 2.7 3.1 1 K 05 5.0 3.0 3.5 1 K 070 5.0 3.5 3. 1 K 075.0 3. 4.3 1 K 00.0 4.0 4. 1 K 05.0 4.4 5.3 1 K 00 7.0 4..0 1 The recommended alignment tolerances are % of the stated admissible shaft misalignment. Radial displacement of couplings: The admissible radial displacements for couplings can be stated only with reference to one determined speed since any radial displacement causes additional thermal stress. The continuous displacement is stated for 00 rpm; at higher speeds n x, r adm = r 00 n x, n x : max. speed 15
Voith Turbo GmbH & Co. KG Centrumstraße 2 45307 Essen, Germany Tel. +4 201 557-3 1 Fax +4 201 557-3 5 highflex@voith.com www.voith.com/highflex VT 233 en,bdi, 2017-05. Dimensions and illustrations without obligation. Subject to modifications.