BWC Series - Bellows Clamp Style Couplings - Metric Bores
Bellows Style Couplings (BWC & BWLC Series)
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The BWC (Bellows Clamp) Series coupling provides a new range of coupling options
with the high torsional stiffness. The higher torsional stiffness provides the benefit of
accuracy and repeatability in motion control applications. The BWC series coupling
features aluminum hubs and corrosion resistant steel bellow.
The compact design also offers the benefit of low inertia. The BWC Series also has a torque capacity of up to 89 in-lbs, with a maximum bore capacity of .748 inches in diameter. The BWC utilizes clamping style hubs that provide easy installation and removal of the coupling. The bellows design also offers up to .016 inches of axial misalignment, with low reactionary loading on bearings.
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Bore A (mm)
Bore B (mm)
Coupling Size
Overall Length (in)
Overall Length (mm)
Keyway Size
Item Number |
Description |
Bore A |
Bore B |
Coupling Size |
Overall Length |
Keyway Size |
Outside Diameter |
Nominal Torque |
|---|---|---|---|---|---|---|---|---|
| 68514476990 | Description N/A BWC21-CP-3MMX3MM | Bore A N/A 3.00 mm | Bore B N/A 3.00 mm | Coupling Size N/A BWC21 | Overall Length N/A 0.827 in21.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 0.591 in15.00 mm | Nominal Torque N/A 3.54 in·lb |
| 68514476991 | Description N/A BWC21-CP-6MMX6MM | Bore A N/A 6.00 mm | Bore B N/A 6.00 mm | Coupling Size N/A BWC21 | Overall Length N/A 0.827 in21.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 0.591 in15.00 mm | Nominal Torque N/A 3.54 in·lb |
| 68514476993 | Description N/A BWC23-CP-4MMX4MM | Bore A N/A 4.00 mm | Bore B N/A 4.00 mm | Coupling Size N/A BWC23 | Overall Length N/A 0.906 in23.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 0.591 in15.00 mm | Nominal Torque N/A 7.97 in·lb |
| 68514476994 | Description N/A BWC23-CP-6MMX6MM | Bore A N/A 6.00 mm | Bore B N/A 6.00 mm | Coupling Size N/A BWC23 | Overall Length N/A 0.906 in23.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 0.591 in15.00 mm | Nominal Torque N/A 7.97 in·lb |
| 68514476995 | Description N/A BWC26-CP-6MMX8MM | Bore A N/A 6.00 mm | Bore B N/A 8.00 mm | Coupling Size N/A BWC26 | Overall Length N/A 1.024 in26.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 0.748 in19.00 mm | Nominal Torque N/A 13.28 in·lb |
| 68514476996 | Description N/A BWC26-CP-8MMX8MM | Bore A N/A 8.00 mm | Bore B N/A 8.00 mm | Coupling Size N/A BWC26 | Overall Length N/A 1.024 in26.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 0.748 in19.00 mm | Nominal Torque N/A 13.28 in·lb |
| 68514476999 | Description N/A BWC41-CP-6MMX6MM | Bore A N/A 6.00 mm | Bore B N/A 6.00 mm | Coupling Size N/A BWC41 | Overall Length N/A 1.614 in41.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 1.260 in32.00 mm | Nominal Torque N/A 39.83 in·lb |
| 68514477000 | Description N/A BWC41-CP-8MMX8MM | Bore A N/A 8.00 mm | Bore B N/A 8.00 mm | Coupling Size N/A BWC41 | Overall Length N/A 1.614 in41.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 1.260 in32.00 mm | Nominal Torque N/A 39.83 in·lb |
| 68514477005 | Description N/A BWC47-CP-10MMX12MM | Bore A N/A 10.00 mm | Bore B N/A 12.00 mm | Coupling Size N/A BWC47 | Overall Length N/A 1.850 in47.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 1.575 in40.00 mm | Nominal Torque N/A 88.50 in·lb |
| 68514477004 | Description N/A BWC47-CP-8MMX8MM | Bore A N/A 8.00 mm | Bore B N/A 8.00 mm | Coupling Size N/A BWC47 | Overall Length N/A 1.850 in47.000 mm | Keyway Size N/A No Keyway | Outside Diameter N/A 1.575 in40.00 mm | Nominal Torque N/A 88.50 in·lb |
