... year experience, 2.Certificate ISO9001.2008, 3.Material: Bearing steel, 4.The nature of work: automatic type clutch Sprag Clutch BearingsSprag ... rollers tilt slightly, producing a wedging action and binding because of friction. The sprags are spring-loaded so that they ... Conveyors, Overrunning, Indexing, Backstopping, Hoist load brake. sprag clutch bearing of NSS series material of bearing steel