1.13 year experience, 2.Certificate ISO9001.2008, 3.Material: Bearing steel, 4.Various size and type, 5.15-30days delivery. Sprag Clutch BearingsSprag Clutch is a one-way freewheel clutch. It resembles a roller bearing, but instead of cylindrical rollers, non-revolving asymmetric figure-of-eight shaped sprags are used. When the unit rotates in one direction the rollers slip or free-wheel, but ...