The thrust ball bearing consists of three parts: the seat ring, the shaft ring and the steel ball cage assembly. The shaft ring that matches the shaft is called the shaft ring, and the seat ring that matches the housing is called the seat ring.

Thrust ball bearings are mainly used to bear axial loads and can transmit large axial loads, but cannot bear radial loads. This type of bearing is mainly used in automobile steering mechanisms, machine tool spindles, etc.