Single direction thrust ball bearings consist of a shaft washer, a housing washer and a ball and cage assembly. The bearings are not self-retaining; the ball and cage assembly and bearing washers can therefore be fitted separately.As their name implies, single direction thrust ball bearings can accommodate axial loads and locate a shaft axially, in one direction only.Depending on their series and size, thrust ball bearings are fitted with one of the cages , like sheet steel cages or Solid brass window cages . We can also supply single direction thrust ball bearings with seating washers according to client requirement . Applies only to bear a part of the axial load and low speed, such as crane hook, vertical pumps, vertical centrifuge, jack, low speed reducer, etc .If you want to know more about WSBC 51200 single direction thrust ball bearings , welcome you contact us freely .