Four-Point Contact Ball Slewing Bearing

This Four-point contact ball slewing bearing is composed of 2 seat-rings, if features compact in design and light in weight. The balls contact with the circular race at four points, via which the axial force, radial force and resultant moment maybe born simultaneously. 
It is mainly used for slewing conveyers, welding arm and positioner, medium duty cranes, excavators and other engineering machines.