Large-scale Construction Equipment Parts - Caterpillar Bulldozer D9R D9L D9N Single/Double Flange Bottom Heat-treated Track Roller

1. What is a track roller?

Supporting the bulldozer's full weight, enduring severe ground shocks, and generating >70% of operational resistance, track rollers are the undercarriage's critical load-bearing core. Each roller is subjected to a demanding 0.6 MPa (6 bar) high-pressure gas test, 60% beyond typical industry requirements, to ensure reliability in the toughest conditions. This key quality control step prevents oil leaks at their origin, resulting in assemblies validated for lifespans exceeding 3,000 hours despite constant immersion in highly abrasive media like mud and sand.

2. Engineering Excellence: Why Our Track Rollers Dominate Severe Conditions

✅ Military-Grade Sealing Integrity

✅ Forged Alloy Armor Defense
Precision metallurgy for extreme environments:

• Surface Shield: 60-65 HRC hardness → Crushes wear

• Structural Core: 450MPa+ tensile strength → Defies impacts

• Shaft Defense: Triple chrome plating → Outlasts corrosion

✅ Battle-Proven Load Capacity
Engineering breakthroughs eliminating failure modes:
✓ 30% optimized load distribution → Neutralizes stress concentrations
✓ Reinforced raceways/bearings → Prevents flange wear & bending
✓ Sustained cyclical load endurance → Slashes downtime, boosts longevity

3. The Cost-Smart Solution for Mining & Heavy Earthmoving

Conquer Rocky Terrain & Slash Costs on Your D9 Bulldozer
Are you frustrated with the performance of your D9 in challenging work environments? Harsh conditions, particularly those involving rocky terrain, can lead to premature failure of undercarriage rollers, significantly reducing component lifespan. As operational hours accumulate, increasing maintenance costs can negatively impact profitability. More concerning is the risk of unexpected equipment failure, resulting in costly unplanned downtime that disrupts operations and reduces revenue. Isn't it time to address these expensive issues and safeguard your investment?

Now imagine upgrading to our D9 Rollers and achieving proven results & ROI: 

Achieve significant 22% fuel savings through advanced engineering that drastically reduces rolling resistance. Enjoy seamless Komatsu compatibility – our rollers are direct OEM replacements for effortless installation. Most importantly, benefit from unmatched durability: precision-built with premium alloys and backed by a robust 3-Year Structural Warranty. This translates to long-term reliability and reduced operating costs. Protect your investment and conquer jobsite challenges.

Unstoppable Traction & Uptime Start Here:

Factory-Direct Pricing | ISO 9001 Certified Quality | Global Logistics Network

4. Production Processes

5. Track Roller Structure

6. Design/Structure/Main Dimensions of Installation

7. Our Advantages 

* World-class quality

* Factory sale directly with reasonable price

* 35 years experience in Excavator & Bulldozer spare parts manufacturing

* Flexible payment terms including T/T, L/C and so on

* Fast delivery within 30 days after contract established

* Professional sales team, quality inspection, and report, maritime logistics guidance

* After-sale services: video technical support,24h online support

8. Hot Sale Products