Four-point Contact Ball Slewing Bearing is composed of 2 seat-rings.It is compact in design and light in weight. The balls contact with the circular race at four points, which carry the axial force, radial force and resultant moment simultaneously. It is mainly used for slewing conveyors, welding arm and positioner, medium duty cranes, excavators and other engineering machines.
crane slewing bearing 013.60.2240 with internal tooth