We are offering single-row four-point contact ball slewing ring with flangecontact ball slewing bearing description: light sery of thin section slewing bearing is composed of 2 seat-rings. The balls contact with the circular race at four point, via which the axial force, radial force and resultant moment may be born simultaneously. features: has the same structure with the ordinary slewing bearing, but the weight is light, and rotate flexiblycompact in structure and light in weight. application: food machinaery, canning machinery and environmental machinery , slewing conveyers, welding arm and positioner, medium duty cranes, excavatorsother construction machinery.