Q: What is an undercarriage idler?

A: The idler wheels are the fundamental component of the undercarriage for both excavators and bulldozers. It helps transferring some of the track frame loads into the tracks, also, its main function us transfer the tension from the adjuster to the tracks. A failure idler will reduce the excavator's stability and result in a loss of track tension.

Q: How do you inspect an excavator track?

A: For inspecting an excavator track, you need to inspect both side of your undercarriage for wear distribution. Looking both left and right at the same time, if one side shows more wear?

Q: What is the difference between front idler and rear idler?

A: The front idler: placed at front of Undercarriage parts, mainly help guiding the front wheel and the track, The direction and slope of the machine can be changed by adjusting the Angle and height of the front guide wheel. At the same time, the front guide wheel can also disperse the ground pressure to prevent the machine from sliding on muddy or soft ground.

The rear idler: placed at the back of Undercarriage parts, mainly plays the role of adjusting the center of gravity of the machine and the tension of the track, which can maintain the stability and traction of the machine by adjusting the position of the guide wheel and the tension of the wheel, reduce the weight and friction, reduce the burden of the machine, and protect the machine tires and tracks from damage.