Joint bearing sliding bearing a special structure . Its structure is simple than rolling bearing , which is dominated by an inner and outer sphere within a spherical outer ring , can withstand a greater load, according to their different types and structures that can withstand the radial load , axial to load or radial, axial joint load simultaneously exist. Bearings are generally used for lower-speed swing motion ( ie angular motion ) , the sliding surface of the spherical shape , but also for tilting movement within a certain range of angles ( ie, aligning movement ) , the supporting shaft misalignment and shaft housing bore large degree , it is still working properly.
Spherical plain bearings can withstand greater loads. According to their different types and structures that can withstand the radial load, axial load or radial, axial joint load . Since the inner surface of the outer sphere inlaid composite materials, so that the work can be generated in the bearing self-lubricating . Generally used for slower swing movement , and low-speed rotation, when the supporting shaft and shaft misalignment large shell hole , still work . Self-lubricating bearings used in water conservancy , specialized machinery and other industries. Joint bearing is dominated by an inner and outer sphere within a spherical outer ring.