The idler pulley/tensioner pulley bearing is a key rotating component inside the idler pulley/tensioner pulley, whose core function is to reduce friction during belt transmission and support the smooth operation of the pulley body.

Core Functions

Reduce friction between the pulley and the rotating shaft to make belt transmission more efficient.

Support the pulley structure to ensure no deviation or wobble during rotation.

Cooperate with the tensioning function of the tensioner pulley to buffer vibration during belt operation.

Application Scenarios & Features

Commonly used in belt drive systems such as automobiles, air conditioners and industrial equipment, it belongs to the same "transmission bearing" category as the previous air conditioning compressor bearing.

Mostly made of bearing steel, it relies on grease to reduce wear and avoid dry friction failure.

After damage, abnormal noises (such as "squeaking" or "humming"), belt slipping or falling off will occur, affecting the normal operation of the equipment.