Spherical Plain Bearing Self-lubricating bearing joints due to self-lubrication, can be automatically self-aligning, does not produce the edge of stress, carrying ability and high temperature, so there are a wide range of applicability, such as the tubular-type hydro-generating unit, hydraulic machinery, arc -shaped gate hinge, flat gate roller bearings, hydraulic hoist bearing service life can reach more than a decade. In addition, the bearing is also used in metallurgical machinery, etc. 
 

Roller bearings  and automatically compensate the relative deviation of the center line of bearing to the bearing capacity of the normal working state of tune is called Rolling Mind. As the bearing bore and shaft machining and installation errors, and loaded songs deformation around the rear axle, shaft and inner and outer axis can not maintain the overlap in their work, would produce a certain deflection.