XCMG 950 Excavator Track Roller Heavy-Duty Bottom Roller for Large Mining

• Extreme Load Capacity: Designed to support the massive weight of 90+ ton excavators while maintaining smooth track movement.

• Premium Floating Seals: Metal face seals provide lifetime lubrication and keep contaminants out, ensuring reliable operation in mud, water, and abrasive dust.

• Induction Hardened Tread: The roller tread surface is hardened to HRC 52–58, delivering excellent wear resistance against continuous contact with track links.

• Heavy-Duty Shaft: Precision-ground shaft made from high-strength alloy steel resists bending and fatigue under shock loads.

• Self-Lubricating Design: Each roller is factory-filled with high-grade lubricating oil, eliminating daily maintenance and extending service intervals.

• Direct OEM Replacement: Bolt-hole pattern and mounting dimensions match the XCMG 950 factory specification for fast, drop-in installation.

The track roller is a critical component of the excavator's undercarriage system. As the excavator travels, the track chain moves over the rollers, transferring the machine's weight to the ground. The roller rotates on its shaft via the sealed bearing assembly, supporting the track and guiding it in a straight line. The floating seals retain lubricating oil inside the roller while preventing dirt, water, and debris from entering. This design allows the roller to operate continuously in harsh environments without daily greasing, while the hardened tread surface resists wear from constant contact with the track links. Properly functioning track rollers distribute weight evenly, reduce vibration, and extend the life of the entire undercarriage.

• OEM-Matching Quality at Lower Cost: Save 30–50% compared to genuine XCMG parts while getting identical fit and performance.

• Extended Undercarriage Life: Precision fit and premium seals reduce track wear and tear, extending the life of the entire undercarriage system.

• Reduced Downtime: Direct bolt-in replacement means fast installation, getting your excavator back to work in hours.

• Maintenance-Free Operation: Lifetime lubricated design eliminates daily greasing, reducing labor costs and preventing missed maintenance.

• Proven Reliability: Field-tested on XCMG 950 excavators in mining, quarry, and heavy construction sites worldwide.

• One-Stop Support: We stock compatible track chains, sprockets, idlers, and track shoes for complete undercarriage service.

1. Raw Material Sourcing: High-grade 40Cr or 42CrMo alloy steel billets are sourced with full material certificates.

2. Hot Forging: The roller shell is hot-forged under a heavy press to achieve proper grain flow and structural integrity.

3. Normalizing: The forged shell is heat-treated to relieve internal stresses and prepare the microstructure.

4. Rough Machining: The outer profile, bore, and mounting surfaces are CNC-turned to near-net dimensions.

5. Induction Hardening: The tread surface is induction heated and quenched to achieve HRC 52–58 hardness.

6. Precision Grinding: The shaft and bearing surfaces are ground to micron-level tolerances for smooth rotation.

7. Floating Seal Assembly: Matched metal face seals are installed to ensure leak-proof operation.

8. Lubrication Filling: The roller is filled with high-grade lubricating oil and sealed.

9. Testing & Inspection: Each roller undergoes ultrasonic flaw detection, pressure testing, and dimensional verification.

10. Painting & Packaging: Anti-corrosion paint is applied, then the roller is packed in a wooden crate for ocean transport.

Q1: How do I confirm this roller fits my XCMG 950?
This track roller is manufactured to the exact OEM specifications for the XCMG XE950 and 950 series excavators. Please verify your machine's serial number and compare the roller diameter, shaft diameter, and mounting bolt pattern with the specifications above. Send us photos of your old roller and data plate if unsure, and our team will confirm compatibility before you order.

Q2: What is the expected service life of this track roller?
Under normal operating conditions on standard terrain, expect 5,000–8,000 working hours before replacement. In abrasive mining conditions or extreme terrain, service life may be reduced to 3,000–5,000 hours. Regular inspection of seals and track tension will maximize roller life.

Q3: Can I replace a single roller, or do I need to replace all rollers at once?
You can replace a single worn roller if the others are still in good condition. However, we recommend inspecting all rollers and replacing them in sets (left and right sides simultaneously) for even track wear and optimal performance. Mixing new and heavily worn rollers can accelerate wear on the new unit.

Q4: What causes premature track roller failure?
Common causes include operating with improper track tension (too tight or too loose), continuous operation in highly abrasive materials without periodic cleaning, and failing seals that allow lubricant to leak out. Regularly check track tension, keep the undercarriage clean when possible, and inspect rollers for oil leaks or excessive play.

Q5: Do I need to grease or lubricate this roller?
No. This track roller is a lifetime-lubricated unit with factory-filled oil and floating seals. No daily greasing is required. If you notice oil leaking from a roller, it means the seal has failed and the roller should be replaced or rebuilt promptly.

Q6: Is this a genuine XCMG part?
This is a high-quality aftermarket replacement manufactured to OEM specifications, not a genuine XCMG component. It is designed, built, and tested to match or exceed OEM performance at a significantly lower price. Many mining companies and contractors choose our rollers for their proven reliability and cost savings.

Q7: How should I store spare track rollers?
Store rollers in a dry, covered area away from direct sunlight and moisture. Keep them in their original packaging until installation. If storing for an extended period, rotate the rollers occasionally to prevent seal sticking and ensure the lubricating oil remains distributed.