This Backstop clutch is a kind of industrial machinery parts which can overrun freely in one direction of rotation. Reverse rotation is instantaneously prevented by the automatic engagement of the clutch (also called a One-way clutch or a Cam clutch).

BS-RK clutch is used for conveyor or bucket elevator as backstop application (Oil lubrication)

- Oil reservoir type

- Overrunning speed is high than BS-K series.