Komatsu PC56 Excavator Front Idler Assy 5.6-Ton Lug-Pattern

The ​​PC56 Idler Assy​​ (short for "idler assembly") is a critical undercarriage component designed for Komatsu mini excavators, primarily used to support track tension and facilitate smooth track movement. It is engineered to work in conjunction with Komatsu’s proprietary track systems, ensuring reliable performance in construction, landscaping, and light demolition tasks.

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