Automotive bearings involve various kinds of bearings such as deep groove ball bearings, four-point contact ball bearings, tapered roller bearings, hub bearing units, cylindrical roller bearings, needle roller bearings, rocker arm bearings, shock absorber bearings, etc., and are mainly used in automotive power systems, transmission systems, steering systems, chassis systems and auxiliary systems. Automobile power system includes engine rocker arm, camshaft, balance shaft, and other auxiliary components such as alternator, tension pulley, water pump, throttle valve and EGR valve, etc. The bearing structures are uniquely designed, with high temperature and low temperature resistance, low temperature starting performance, low noise, low vibration, long life and other characteristics. The transmission system includes gearbox, drive shaft, differential and other parts. The bearings used are mainly deep groove ball bearings, needle roller bearings, cylindrical roller bearings, tapered roller bearings, etc., which are resistant to pollution, and featured by low noise and low starting torque, long life and other characteristics. The bearings for steering system include semi-rigid bearings, deep groove ball bearings, needle roller bearings, four-point contact ball bearings, thrust angular contact ball bearing etc., which are applied in steering column, steering knuckle, steering wheel, and power steering system (REPS, PEPS, CEPS). These bearings are featured by compact structure, small axial run-out, certain aligning capability, bi-directional axial load carrying capacity, low starting torque, low noise and long service life. Steering bearings are widely used in the electric and hydraulic power steering systems of various vehicles. The chassis system includes hub units, differentials, shock absorbers, etc. involving first, second, third generation wheel hub bearings, deep groove ball bearing, universal joint bearing, tapered roller bearings, special structure shock absorber bearings, etc. Bearings are characterized by impact resistance, anti-fatigue fatigue properties, has great advantages in terms of import substitution. Auxiliary systems include wiper motor, seat adjustment motor, door lift motor, etc. Most of the motor bearings use miniature deep groove ball bearings, characterized by low noise, low vibration and low starting torque, which greatly improve the comfort and quality of the vehicle.