NSS12 One-Way 12x32x10mm Bearing Support Required Backstop ClutchNSS12 One Way Clutch One Clutch NSS12 is a one way clutch, that is used for Overrunning, Indexing and Backstopping, this type is non bearing supported, this is exactly the same size as any 6201 ball bearing, you will need one of the 6201 beairngs to support it, One way Bearing Sprag Clutch Freewheel and also called as Backstops. NSS12 is used in any applications that requires one direction rotation, such as mining, hydraulic, textile, printing and