One-way thrust ball bearing and two-way thrust ball bearing are divided according to force. One-way thrust ball bearing can bear one-way axial load.
Two-way thrust ball bearing can withstand bidirectional axial load, in which the shaft ring and shaft fit. The bearing with spherical mounting surface of seat ring has the function of adjusting center, which can reduce the influence of installation error.
Thrust ball bearings can not withstand radial load, limit speed is lower.