Komatsu PC100 Excavator Front Idler Assy 10-Ton Lug-Pattern

The PC100 Idler Assy (short for "idler assembly") is a critical wear part in the undercarriage of Komatsu PC100-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 works 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