The angular contact ball bearing can bear radial load and axial load at the same time, and it can work at high speed. The greater the contact angle, the higher the axial bearing capacity. Single row angular contact ball bearings: machine tool spindle, burning steam turbine, small car front wheel, turbocharging pump, drilling platform, food machinery, indexing head, welding machine, low noise cooling tower, mechanical and electrical equipment, coating equipment, machine tool slot board, arc welder and so on. Double row angle contact ball bearings: oil pump, air compressor, various kinds of transmission, fuel injection pump, printing machinery, planetary reducer, extraction equipment, cycloid reducer, food packaging machinery, electric welding machine, electric iron, square box, gravity type spray gun and so on.