1.13 year experience, 2.Certificate ISO9001.2008, 3.Material: Bearing steel, 4.The nature of work: automatic type clutch Sprag Clutch ... bearing, but instead of cylindrical rollers, non-revolving asymmetric figure-of-eight shaped sprags are used. When the unit rotates in one ... tilt slightly, producing a wedging action and binding because of friction. The sprags are spring-loaded so that they lock with ...