Automotive Starter Motor and Alternator Bearing

Automotive alternator bearings due to exposure in the brush wear dust and from external dust,mud and other harsh environments,the bearing must have good sealing performance;through the V Ribbed belt wheel drives the generator rotor to rotate,the bearing must be able to bear load;along with the automobile performance continues to improve,automotive engine and generator performance is put forward higher requirements,motor speed has more than 20000rpm,the bearing must have high speed performance;automotive generators require low friction torque,automotive generator bearings must satisfy low start-up and rotational torque requirement;long life,high reliability and so on request.

Automotive alternator bearings have the following characteristics:
1, Inner ,outer ring,steel material with high purity,and special materials processing to obtain good organization;as well as the form and position tolerance with high precision,excellent working surface morphology;
2, The retainer material has sufficient strength to maintain high-speed,high-temperature properties;
3, Seal structure and seal has a high performance sealing,heat resistance,and good oil,grease idler affinity stability;
4, Grease has excellent anti bearing fatigue spalling resistance,low temperature,high stability,and resistance to leakage.