Komatsu D275 Dozer Idler Assy Undercarriage Replacement Parts Wear Resistance

The D275 Idler Assy is Kubota's compact powerhouse component designed for excavators in demanding Australian projects. This precision-engineered bottom roller ensures durability, excellent load-bearing capacity, and smooth operation in compact construction machinery.

The D275 Idler Assy (short for "idler assembly") is a critical wear component in the undercarriage of Komatsu D275-series excavators. It plays a vital role in guiding the track chain, maintaining proper tension, and ensuring smooth track movement—functions essential for excavator stability, efficiency, and longevity during operation. This assembly is designed to work in conjunction with rollers, sprockets, and idler shafts to reduce friction, prevent track misalignment, and enhance the overall performance of the undercarriage system.

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