Core Features
Axial Rigid Positioning: Embedded in the shaft groove, it provides reliable axial support, precisely locking the part's position and preventing axial displacement and component collision under heavy load vibration.
Elastic Anti-Loosening Locking: The open elastic structure combined with installation preload accommodates minute groove tolerances, maintaining a tight lock under high-frequency vibration conditions and preventing component loosening.
Clearance Compensation and Vibration Reduction: Elastic deformation absorbs assembly clearances and operational impacts, reducing shaft vibration noise and minimizing wear on mating surfaces.
Assembly Datum Positioning: Provides an installation datum for bearings and seals, ensuring coaxiality and improving system operating accuracy.
Quick Installation and Removal Maintenance: Compatible with universal snap ring pliers, installation and removal require no special equipment, shortening maintenance downtime.
Product Superiority
Original Factory Precise Fit: Manufactured according to Komatsu's original drawings, the inner diameter, thickness, and opening size perfectly match the corresponding shaft grooves of D65/D85, with a positioning accuracy ≤0.02mm. After press-fitting, it fits tightly against the shaft shoulder, eliminating loosening or wear caused by gaps.
High Strength and Fatigue Resistance: Made of 65Mn spring steel, quenched and tempered, with a tensile strength ≥1000MPa and a hardness of HRC42-48. Fatigue life under cyclic load exceeds 10⁵ cycles, suitable for heavy-duty vibration conditions in bulldozers.
Long-lasting and Stable Elasticity: Elasticity decay ≤5% within a temperature range of -40℃ to 120℃, maintaining preload for extended periods without the risk of loosening.
Corrosion Resistance and Working Condition Resistance: Surface galvanized and passivated, resistant to salt spray for ≥48 hours, suitable for dusty and humid environments such as mines and infrastructure projects, preventing rust and jamming.
Efficient and convenient installation: Standard opening + mounting hole design allows for quick installation and removal with universal snap ring pliers, increasing assembly efficiency by 50% and reducing maintenance costs.
Applicable Scene
This product is designed for heavy-duty continuous operations like mine stripping, large-scale infrastructure projects, and land leveling using Komatsu D65/D85 bulldozers. It specifically targets critical components including the gearbox, final drive, and hydraulic cylinders. To ensure optimal performance, we recommend replacing these parts simultaneously with bearings and skeleton oil seals to enhance the reliability of the shaft system.
