Factory Price D375 Lug Pattern Excavator Track Roller Bottom Roller Exact Fit for Komatsu D375 Bulldozers

The D375 track roller is a foundational wear part in the undercarriage system of Komatsu D375 series bulldozers, engineered to support the machine’s substantial weight and enable smooth, stable track movement. As a key link in the "four-wheel-one-belt" undercarriage assembly (track links, rollers, idlers, and sprockets), the track roller plays a vital role in distributing the bulldozer’s load evenly across the track frame.This reduces stress on individual components and prevents excessive wear, ensuring consistent performance in demanding construction, mining, and quarrying environments.

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