The spherical plain bearing is a spherical sliding bearing. Its sliding contact surface is an inner spherical surface and an outer spherical surface. It can rotate and swing at any angle during movement. It adopts surface phosphating, frying, inlaying, spraying and other special processes. Method made. Joint bearings have the characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, self-aligning, and good lubrication.

The structure of the joint bearing is simpler than that of the rolling bearing. It is mainly composed of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. Joint bearings are generally used for low-speed swing motion (ie angular motion). Because the sliding surface is spherical, it can also be tilted within a certain angle range (ie, self-aligning motion). The support shaft and the shaft housing hole are not concentric. When the temperature is high, it can still work normally.