NSS8 One-Way 8x24x8mm Bearing Support Required Backstop ClutchNSS8 One Way Clutch 8mm x 24mm x 8mm One Clutch Bearing NSS8 is a one way clutch, that is used for Overrunning, Indexing and Backstopping, this type is non bearing supported, you will need one of the 628 bearings to support it, One way Bearing Sprag Clutch Freewheel and also called as Backstops. NSS8 is used in any application that requires one direction rotation, such as mining, hydraulic, textile, printing and washing machines, conveyor systems that