The General purpose double row angular contact ball bearings can withstand bidirectional axial load. The inner and outer raceways are peach shaped sections. When there is no load or just radial load, the steel ball and ring are in four point contact. Compared with other ball bearings, when the radial clearance is the same, the axial clearance is smaller, limit speed is higher, and bearing capacity is bigger than deep groove ball bearings of the same size.