Automotive alternator, long-term exposure to brush wear particles and external dust, muddy water, from low speed to high speed under high temperature and high load, its working conditions are very harsh, so its bearing requirements are very high, These requirements are mainly: high reliability, high fatigue life, high sealing performance, and high temperature resistance.
This car alternator bearing is designed for its actual working conditions, using special raw materials, heat treatment methods, sealing structure, lubrication scheme, etc., which satisfies the needs of working conditions. This kind of product is added with "SA" before the code. the difference