AS20 One-Way Backstop Freewheel Clutch - 20x47x14mmAS20 One Way Clutch Bearing 20x47x14mm Backstop Freewheel Same as NSS20 The AS20 one way clutch provides directional control for applications like conveyors, motors, and machinery. Same size as a 6204 ball bearing, it requires separate bearing support. Ideal for setups where rotation must only occur in one direction. Size: 20mm ID x 47mm OD x 14mm Width Type: One Way Clutch (Sprag Freewheel) Applications: Overrunning, Indexing, Backstopping Torque: 32