Komatsu Dozer/Tractor/12Y3000021/D51EX-22 SF/DF Track Roller Assembly/Steel undercarriages manufacture and supplier
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Product Specifications
Komatsu D51EX-22 Track Idler Assembly is a critical front-end component of the undercarriage system on the Komatsu D51EX-22 bulldozer. It serves as the guiding and tensioning point for the track chain, ensuring proper alignment, absorbing operational shocks, and maintaining optimal track sag. Engineered for durability, this assembly withstands abrasive environments while promoting balanced wear across the undercarriage.
Key Features & Technical Specifications
OEM Compatibility
Designed exclusively for the Komatsu D51EX-22 bulldozer. Guaranteed fit and performance.
Construction
Forged Steel Core: Provides superior impact resistance and structural integrity compared to cast designs.
Induction-Hardened Flanges: Surface hardness of 55-60 HRC to resist abrasive wear from track chain contact.
Precision-Machined Surfaces: Ensures smooth rotation and reduces friction.
Bearing & Sealing System
Tapered Roller Bearings: Heavy-duty bearings capable of supporting radial and axial loads under extreme conditions.
Multi-Lip Labyrinth Seals: Komatsu’s proprietary sealing technology prevents contaminant ingress (e.g., mud, sand) and retains lubricant, extending service life.
Lube-for-Life Design: Factory-pre-lubricated and sealed, eliminating routine maintenance.
Functionality
Track Guidance: Dual flanges prevent lateral derailment during turns and uneven terrain operation.
Tensioning Pivot: Integrates with the hydraulic track tensioning system to adjust track sag.
Impact Absorption: Dissipates shock loads from obstacles and rough terrain.
Durability Enhancements
Corrosion-resistant coating applied to non-wear surfaces.
Reinforced welding points at high-stress areas.
Applications
Earthmoving & Grading: Road construction, land development.
Quarry & Mining Operations: Heavy-duty material handling.
Forestry & Agriculture: Uneven terrain and abrasive ground conditions.
Benefits of OEM Replacement
Extended Undercarriage Life: Reduces wear on track chains, rollers, and sprockets.
Reduced Downtime: Precision engineering ensures reliability in harsh environments.
Optimal Performance: Maintains track alignment and tension for efficient power transmission.
Warranty Support: Backed by Komatsu’s quality assurance and warranty policies.
Maintenance Recommendations
Regular Inspection: Check for flange wear, seal leaks, and rotational freedom.
Track Tension Management: Follow OEM guidelines to prevent over-tensioning or excessive slack.
Contamination Control: Clean packed debris around the idler to reduce seal wear.
Conclusion
The Komatsu D51EX-22 Track Idler Assembly combines robust materials, advanced sealing technology, and precision manufacturing to deliver reliable performance in extreme conditions. Using genuine Komatsu parts ensures compatibility, durability, and optimal machine productivity.
