Joint bearing
Joint bearing is a kind of special structure of the sliding bearing. The structure of it than rolling bearing simple, its main is by a spherical outside of the inner ring and a sphere in the outer ring composition, can bear larger load, according to its different type and structure, can bear radial load, axial load or radial, axial and existing joint load. Joint bearings are used for speed lower swing motion (that is, because the Angle motion) sliding surface for spherical form, also can be certain Angle range be tilted (that is, the tone heart movement exercise), in the axis and axle case hole not bigger, concentricity can still work.