... size and type, 5.15-30days delivery. Sprag Clutch BearingsSprag Clutch is a one-way freewheel clutch. ... shaped sprags are used. When the unit rotates in one direction the rollers slip or free-wheel, ... but when a torque is applied in the opposite direction, the rollers tilt slightly, ... , Overrunning, Indexing, Backstopping, Hoist load brake. one way clutch of sprag freewheels DC series ...