Caterpillar D10L Lug Pattern Bulldozer Idler Assy Undercarriage Track Parts

The D10L idler assy (short for "idler assembly") is a key wear part in the undercarriage system of the Caterpillar D10L bulldozer. Its primary role is to support the upper run of the rubber track, reduce friction between the track and the machine frame, and ensure smooth, consistent movement during operation. As a load-bearing component, it withstands significant vertical and horizontal forces from the track, making durability and precision critical to preventing track slippage, uneven wear, and costly downtime.

Our production involves rigorous quality-controlled processes:

• High-grade Material Selection: Components are crafted from premium materials for maximum durability
• Outer Race/Shell: High-carbon chromium bearing steel (SUJ2) for superior hardness and wear resistance
• Inner Roller/Spindle: Alloy steel (SCM440) engineered to withstand significant radial and axial loads
• Seals & Lubrication: Nitrile rubber (NBR) seals for oil resistance with lithium-based grease for long-term lubrication
• Quality Assurance: All materials undergo thorough inspection for chemical composition and mechanical properties using spectrometers and hardness testers