Technical Data Clutches Handling
BS Series Handling Precautions
- 1.This is the backstopping cam clutch dedicated for slow-speed shaft such as conveyors, pumps, etc.
- 2.Lubrication method and dustproof measures
BS30~BS135 BS160~BS350 Lubrication specifications Grease-filled.
No greasing is required.Grease lubrication type, grease change once a year is sufficient. Dustproof measures ・Double lip oil seal ・Dust-proof board
・Double lip oil seal - 3. Before installation, be sure to check that the direction of rotation of the inner race of the BS cam clutch (arrow on inner race end face) is the same as that of the conveyor.
- 4. Securely install the torque arm to the BS Cam Clutch using bolts with a strength class of 10.9 grade or higher. Make sure the surface of the torque arm that contacts the end face of the outer race is flat and free of dust in order to get enough frictional force.
- 5. Recommended shaft tolerance is h7 or h8.
- 6. Apply pressure only on the end face of the inner race when inserting the BS/BS-F Cam Clutch on to the shaft. Do not hit the inner race directly with a hammer or apply pressure on the outer race, oil seal, or grease fitting.
- 7. Always use a parallel key for installation onto the shaft and then fix the BS/BS-F Cam Clutch to the shaft with the end plate. Keep a clearance between the top of key and keyway. This may cause cam clutch damage.
- 8. The end tip of the torque arm will swing to some extent while the conveyor is operating. Support the torque arm end tip only in the direction of rotation, but be sure to allow it a certain amount of free movement axially. (Refer to installation diagram. )The Cam Clutch will sustain damage if the torque arm end tip is fixed securely.
- 9. A single torque arm is sufficient for models from BS30 to BS220. One torque arm on each side is required for models from BS220 to BS450, and to stop the rotation by both torque arms so that the reverse load operates on the torque arms evenly.
- 10. It is recommended to use the standardized torque arm and safety cover for the BS Cam Clutch.
- 11. For more information on lubrication and maintenance, click here.


BS Series Safety cover Handling Precautions
- 1. When mounting the cover to the BS cam clutch, use the supplied hexagon socket head cap screws and spring washers to ensure secure mounting.
- 2. The safety cover should be mounted on the opposite side of the torque arm.
- 3. For details, refer to the instruction manuals.
- 4. This cover is for safety cover only and cannot be used as an oil reservoir.
