The tensioner pulley is a belt tension device used in the automobile transmission system, and it is a crucial component in FEAD of the vehicle. Due to its long-term operation in the high temperature environment around the engine, its high alternating speed and large radial force, the tensioner bearing has its significant importance in comparison to other components. Considering the actual working conditions of the bearing and the requirements from OE customer for quality, Tianchi Bearing optimizes and specially designs the sealing structure, and selects the grease with high temperature resistance and high viscosity, preventing leakage, thus extend its service life.

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