Factory Price D5D Lug Pattern Excavator Track Roller Bottom Roller Exact Fit for Caterpillar D5D, D5E, D5G Bulldozers

The D5D track roller is a critical wear part designed for bulldozers, primarily used to support the machine’s weight and ensure smooth movement on rough terrains. It is a subtype of the broader ​​bulldozer track roller​​ category, which includes single/double flange, top/bottom rollers, and carrier rollers. Unlike universal track rollers, the D5D model is specifically engineered to match the dimensional and load requirements of Komatsu D5D bulldozers, though it may also fit other compatible models (e.g., Komatsu D50, D5C, D6D) due to standardized undercarriage designs.

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