High-Performance RHK Track Rollers: The Foundation of Undercarriage Durability

In the demanding world of heavy construction and earthmoving, the undercarriage serves as the foundation of machine productivity. Among its critical components, the track rollers play a vital role—precision-engineered parts designed to ensure equipment stability and mobility under extreme conditions.

Track Rollers

The Essential Role of Track Rollers

Positioned at the base of the undercarriage, track rollers perform two primary functions:

  • Weight Distribution: They function to bear the machine’s weight on the ground, ensuring stability during heavy-duty operations.

  • Path Guidance: They are designed to direct the track link around the sprocket and idler wheels, preventing derailment and ensuring smooth linear movement.

Precision Manufacturing by YONGXING MACHINERY

RHK track rollers are engineered to exceed industry standards through a combination of premium materials and cutting-edge manufacturing techniques.

1. Superior Material Selection and Hardening

The structural integrity of the roller begins with high-grade steel and advanced heat treatment:

  • High-Grade Steel: The wheel bodies are crafted from 40Mn2/50Mn material, chosen for its excellent hardenability and toughness.

  • Optimal Surface Hardness: The track rollers surface hardness ranges from HRC 53 to 58.

  • Precise Hardening Depth: The heat treatment reaches a depth of 8mm–12mm, providing exceptional wear resistance.

  • Reinforced Rail Surface: We utilize medium frequency quenching to specifically enhance the wear resistance of the rail surface.

2. High-Performance Shaft and Bushing Components

The internal components are built to withstand high stress and friction:

  • Quality Shaft Construction: The track rollers shaft is made of high-quality 45# steel.

  • Enhanced Durability: Shaft wear resistance is significantly improved through high-frequency quenching and specialized surface heat treatments.

  • Premium Bushings: The assembly incorporates good quality bronze bushings to ensure smooth rotation and load distribution.

3. Advanced Sealing and Lubrication

To operate reliably in mud, water, and grit, the RHK roller features a sophisticated protection system:

  • Alloy Floating Seals: The rollers utilize high hardness, wear-resisting alloy Chromium & Molybdenum floating seals.

  • Elastic Protection: These are paired with elastic rubber O-rings to maintain a perfect seal.

  • Continuous Lubrication: A well-lubricated oil recycle system ensures the internal components remain cool and friction-free.

4. Cutting-Edge Welding Technology

The integrity of the wheel body is secured through advanced industrial welding:

  • Process Excellence: We employ both gas shielded welding and friction welding of the wheel body.

  • Zero-Defect Guarantee: Each weld is meticulously inspected to ensure it is 100% free from defects, providing a leak-proof and structurally sound product.

Why Choose RHK?

By choosing RHK track rollers from YONGXING MACHINERY, you are investing in a product that reduces downtime and extends the life of your undercarriage. Our commitment to using high-grade materials—from the HRC 53-58 hardened surface to the precision alloy seals—ensures that your machinery keeps moving, no matter how tough the job site

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