BK2
Bellows couplingsThe BK2 bellows coupling from R+W Couplings has a very economically interesting design and is easy to assemble due to the clamping hubs. The BK2 coupling has a low mass moment of inertia and by using friction clamp connection, the precision coupling is absolutely free of backlash. Thanks to its forced bellows shape, the element can simultaneously accommodate lateral, axial and angular misalignments. As long as they do not fall outside the maximum area, no metal fatigue will occur in the bellows material and the clutch is completely free of wear. For specific questions about bellows couplings, contact VARIODRIVE.
Implementation
Clamp hub
Nom. Torque
15-10.000 Nm
Speed
up to 10,000 rpm
Temperature range
-30 to +100 oC
Bellows material
STAINLESS STEEL
Hub material
Steel or Alu
Peak load
Up to 1.5x nom. Torque
Backlash
None
Service-life
No service
Optional
ATEX, clean room version
Datasheets
- Bestelcode instructies
- ATEX instructies
- Datasheet BK2
- Manual BK/MK koppelingen
Tabel
| BK2 Series | 15 | 30 | 60 | 80 | 150 | 200 | 300 | 500 | 800 | 1500 | 4000 | 6000 | 10000 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated torque (Nm) | TKN | 15 | 30 | 60 | 80 | 150 | 200 | 300 | 500 | 800 | 1500 | 4000 | 6000 | 10000 |
| Overall length (mm) | A-2 | 59 | 66 | 99 | 69 | 77 | 113 | 83 | 93 | 130 | 94 | 106 | 143 | 95 | 107 | 144 | 105 | 117 | 163 | 111 | 125 | 200 | 133 | 146 | 169 | 140 | 179 | 166 | 230 | 225 | 252 | 288 |
| Fit length (mm) | c | 22 | 27 | 31 | 36 | 36 | 41 | 43 | 51 | 45 | 55 | 85 | 107 | 129 |
| Inside diameter possible from ØtoØ H7 (mm) | DI/D2 | 8-28 | 10-30 | 12-35 | 14-42 | 19-42 | 22-45 | 24-60 | 35-60 | 40-75 | 50-80 | 50-90 | 60-140 | 70-180 |
| Outside diameter (mm) | B | 49 | 55 | 66 | 81 | 81 | 90 | 110 | 124 | 134 | 157 | 200 | 253 | 303 |
| Moment of inertia (10-kgm2) | Jges. | 0,06 | 0,07 | 0,08 | 0,12 | 0,13 | 0,14 | 0,32 | 0,35 | 0,4 | 0,8 | 0,85 | 0,9 | 1,9 | 2 | 2,1 | 3,2 | 3,4 | 3,6 | 7,6 | 7,9 | 8,3 | 14,3 | 14,6 | 14,8 | 16,2 | 17 | 43 | 45 | 165 | 495 | 1214 |
| Approximate weight (kg) | 0,16 | 0,26 | 0,48 | 0,8 | 1,85 | 2,65 | 4 | 6,3 | 5,7 | 11,5 | 28,8 | 49,4 | 80,9 | |
| Torsional stiffness (103 Nm/rad) | CT | 20 | 15 | 14 | 39 | 28 | 27 | 76 | 55 | 54 | 129 | 85 | 84 | 175 | 110 | 97 | 191 | 140 | 135 | 450 | 350 | 340 | 510 | 500 | 400 | 780 | 711 | 1304 | 1180 | 3400 | 5700 | 10950 |
| Axial ± (mm)) | max. | 1 | 2 | 3 | 1 | 2 | 3 | 1,5 | 2 | 3 | 2 | 3 | 4 | 2 | 3 | 4 | 2 | 3 | 4 | 2,5 | 3,5 | 4,5 | 2,5 | 3,5 | 4,5 | 3,5 | 4,5 | 3,5 | 4,5 | 3,5 | 3 | 3 |
| Lateral ± (mm) | max. | 0,15 | 0,2 | 1 | | 0,2 | 0,25 | 1 | 0,2 | 0,25 | 1 | 0,2 | 0,25 | 1 | 0,2 | 0,25 | 1 | 0,25 | 0,3 | 1 | 0,25 | 0,3 | 1 | 0,3 | 0,35 | 1 | 0,35 | 1 | 0,35 | 1 | 0,4 | 0,4 | 0,4 |
| Angular ± (degree) | max. | 1 | 1,5 | 2 | 1 | 1,5 | 2 | 1 | 1,5 | 2 | 1 | 1,5 | 2 | 1 | 1,5 | 2 | 1 | 1,5 | 2 | 1 | 1,5 | 2 | 1 | 1,5 | 2 | 1,5 | 2 | 1,5 | 2 | 1,5 | 1,5 | 1,5 |
| Axial spring stiffness (N/mm) | ca | 25 | 15 | 84 | 50 | 30 | 118 | 72 | 48 | 165 | 48 | 32 | 144 | 82 | 52 | 130 | 90 | 60 | 280 | 105 | 71 | 605 | 70 | 48 | 85 | 100 | 285 | 320 | 440 | 565 | 1030 | 985 |
| Lateral spring stiffness (N/mm) | cr | 475 | 137 | 140 | 900 | 270 | 224 | 1200 | 420 | 337 | 920 | 290 | 401 | 1550 | 435 | 500 | 2040 | 610 | 750 | 3750 | 1050 | 1200 | 2500 | 840 | 614 | 2000 | 1490 | 3600 | 1700 | 6070 | 19200 | 21800 |
| Fastening screw (ISO 4762) | E | M15 | M6 | M8 | MIO | MIO | M12 | M12 | M16 | 2x M16* | 2x M20* | 2x 1424* | 2x 1424* | 2x M130* |
| Tightening torque of the fastening screw (Nm) | E | 8 | 15 | 40 | 50 | 70 | 120 | 130 | 200 | 250 | 470 | 1200 | 1200 | 2400 |
| Distance between centerlines (mm) | F | 17 | 19 | 23 | 27 | 27 | 31 | 39 | 41 | 2x48 | 2x55 | 2x65 | 2x90 | 2x117 |
| Distance (mm) | G | 6,5 | 7,5 | 9,5 | 11 | 11 | 12,5 | 13 | 16,5 | 18 | 22,5 | 28 | 35 | 42 |
| Hub material | Aluminium optional Steel | Aluminium optional Steel | Aluminium optional Steel | Aluminium optional Steel | Steel optional Aluminium | Steel optional Aluminium | Steel optional Aluminium | Steel optional Aluminium | Steel | Steel | Steel | Steel | Steel | |
| 15 | 30 | 60 | 80 | 150 | 200 | 300 | 500 | 800 | 1500 | 4000 | 6000 | 10000 |
Downloads
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- Datasheets
- Manuals
- Datasheets
- Datasheets
- Datasheets
- Manuals
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