Single-row four point contact slewing bearing (01 series) 1.Description: The single-row four point contact ball 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. 2. Packing 1 Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film; 2 And then packed with kraft paper and professional belts; 3 At last, with wooden box totally at the outer packing to invoid the rust or the moist; 4 We can depend on the customers demand to be packed; 3. Features: Compact in structure and light in weight. 4. Application: slewing conveyers, welding arm and positioner, medium duty cranes, excavators and other engineering machines. Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film; And then packed with kraft paper and professional belts; At last, with wooden box totally at the outer packing to invoid the rust or the moist; We can depend on the customers demand to be packed;