Komatsu PC30/40 Excavator Front Idler Assy 30/40-Ton OEM Replacement

Factory Price PC30/40 Lug-Pattern Excavator Idler Assy Front Idler for 30/40-Ton Komatsu PC30/40-Series. This precision-engineered bottom roller ensures durability, excellent load-bearing capacity, and smooth operation in compact construction machinery.The PC30/40 excavator idler assy (short for "idler assembly") is a critical wear part in the undercarriage system of Komatsu PC30 and PC40 mini excavators. It plays a key role in maintaining track alignment, reducing friction, and ensuring smooth movement of the track chain—which is vital for the excavator’s mobility and operational efficiency.

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