Double-row Angular Contact Thrust Ball Slewing Bearing 021.40.1400 Double Row Angular Contact Thrust Ball Slewing Bearing Size 1576*1224*160mm Mounting Hole Size1524*1272*40mm Configuration of slewing bearings Slewing bearings is a kind of large-size bearing with special configuration which can bear axial load, radial load and tilting moment. Generally, a slewing bearing has mounting holes, lubricating holes and sealing system