Joint bearing

الوصف

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 (i.e. Angle motion), with the sliding surface for spherical shape, also can be certain Angle range for tilt movement (namely the tone heart movement), in the axis and axle case hole not bigger, concentricity can still work.
A joint bearingin which a rolling member has been designed in such a way that relative to the inner race track and outer race track representing a circular arch, four contact points are obtained, the rolling member is associated with a central cylindrical portion and carrying portions which adjoin it at both ends, and has an outer contour with a radius which is osculated relative to the inner race track and the outer race track, so that a relatively small and compact joint bearing is formed which permits both an angular movement and a rotational movement while reducing friction. The four-point contact permits accurate guidance of the rolling members and eliminates the need for guiding edges