What is the service life of an automotive tensioner pulley and idler pulley?

1 Answers
LaRafael
07/30/25 5:40am
The service life of a tensioner pulley is 60,000 kilometers, while an idler pulley should be replaced after 6 years or 90,000 kilometers. Below is an introduction to tensioner pulleys and idler pulleys:1. Introduction: A tensioner pulley is a belt tensioning device used in automotive transmission systems. An idler pulley refers to a gear that transmits power between two non-contacting drive gears, meshing with both gears to change the rotation direction of the driven gear to match that of the driving gear.2. Functions: (1) Tensioner pulley: Used to adjust the tightness of the timing belt. (2) Idler pulley: Its main functions include altering the rotation direction of the driven gear, increasing the transmission distance, and adjusting the pressure angle, among others.
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