The thrust ball bearing is designed to bear the thrust load when running at high speed.It consists of a gasket ring with a raceway with ball rolling.Because the ring is cushion shaped, the thrust ball bearing is divided into two types: flat base cushion and centering spherical cushion.In addition, the bearing can withstand axial load, but not radial load.Thrust ball bearings divided into two type: unidirectional and bidirectional.The unidirectional thrust ball bearing consists of two rings (shaft ring and bearing seat ring) and a cage with a ball.Thebidirectionalthrust ball bearing is composed of three rings and two retainers with balls.If it is bidirectional, it takes the form of two retainers containing the ball clamping the shaft ring.