... ISO9001.2008, 3.Material: Bearing steel, 4.Various size and type, Sprag Clutch BearingsSprag Clutch is a one-way freewheel ... opposite direction, the rollers tilt slightly, producing a wedging action and binding because of friction. The sprags are spring-loaded so ... Starters, Primary drive, Conveyors, Overrunning, Indexing, Backstopping, Hoist load brake. High Quality Sprag Clutch Bearings DC 5476