Idler

Description

An Idler is a critical undercarriage component found in tracked heavy machinery like excavators, bulldozers, and loaders. Its primary function is to guide the track and maintain proper tension on the track chain as it moves around the undercarriage. Positioned at the front or rear of the track frame, the idler helps support the weight of the machine and ensures the track stays aligned during operation.

Idlers are designed to absorb shock, reduce vibration, and minimize wear on the track links. They are typically made from high-strength forged steel and feature sealed bearings or lubrication systems to extend service life in demanding environments like construction sites, mining, and forestry.