SK60-8 Excavator Front Idler Assy for Kobelco 6-Ton Models

The ​​SK60-8 idler assy​​ (short for "idler assembly") is a critical undercarriage component designed exclusively for the ​​SK60-8 mini excavator​​. It plays a vital role in guiding and tensioning the track system, ensuring smooth power transfer from the engine to the wheels and preventing slippage or misalignment. This assembly is engineered to withstand harsh excavation conditions (dirt, rocks, heavy loads) and is essential for maintaining the stability and efficiency of the machine.The SK60-8 idler assy is ​​exclusively designed for the SK60-8 mini excavator​​ from Sany Heavy Industry. It is not interchangeable with other SK-series models (e.g., SK55, SK120) or non-Sany excavators, as the track pitch, bore diameter, and mounting dimensions are customized to fit the SK60-8’s undercarriage structure.

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