Product Description

Caterpillar Bulldozer Medium frequency Heat-treatment Undercarriage Parts D6 Professional Track Roller Bottom Roller

1. What is a track roller?

As the critical load-bearing core of excavator undercarriages, track rollers bear the machine’s full weight, withstand severe ground impacts, and generate over 70% of total operational resistance. Each roller is subjected to high-pressure gas testing at 0.6 MPa (6 bar) – 60% above industry norms – to guarantee reliability in extreme operating environments. This critical QC measure prevents potential oil leaks at the source, resulting in assemblies validated for >10,000-hour lifespans despite persistent immersion in high-abrasion media like mud and sand.

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

✅ Military-Grade Sealing Integrity

Each roller is subjected to high-pressure gas testing at 0.6 MPa (6 bar) – 60% above industry norms – to guarantee reliability in extreme operating environments. This critical QC measure prevents potential oil leaks at the source, resulting in assemblies validated for >10,000-hour lifespans despite persistent immersion in high-abrasion media like mud and sand.

✅ Forged Alloy Armor Defense

Precision-forged shells undergo specialized deep-case hardening followed by quench-tempering treatments, creating an optimal balance of surface resilience and structural integrity. This controlled thermal processing achieves critical performance benchmarks: a Rockwell 60-65 HRC surface hardness for extreme wear resistance, 450MPa+ tensile strength to withstand high-impact loads, and triple-layer chrome plating on shafts that combats corrosion while minimizing friction. Together, these properties deliver exceptional durability in abrasive operating environments.

✅ Battle-Proven Load Capacity

Our re-engineered internal raceways and optimized tapered bearings achieve 30% more efficient load force distribution. This advanced geometry prevents two critical failure modes: premature flange wear caused by localized stress concentrations, and bending deformation during high-cycle fatigue operations. By eliminating these failure points, the system maintains structural integrity under sustained cyclical loading – extending service life and reducing unplanned downtime.

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

Conquer Rocky Terrain & Slash Costs on Your D6 Bulldozer
Are you tired of watching your D6 suffer on demanding jobsites? Premature undercarriage roller failure plagues your machine when tackling harsh, rock-strewn ground, cutting component life drastically. As operating hours accumulate, you face spiraling maintenance bills that relentlessly erode your bottom line. Worst of all, unexpected breakdowns cause profit-killing unplanned downtime, halting productivity and draining revenue. Isn't it time to overcome these costly challenges and protect your investment?

Now imagine upgrading to our D6 Rollers and achieving proven results & ROI: 

Experience significant fuel savings of 22% thanks to an advanced design delivering dramatically lower rolling resistance. Enjoy a perfect Komatsu fit with rollers that directly interchange with OEM part, ensuring seamless installation. Most importantly, gain unmatched durability – our rollers are built tough with premium alloys and backed by a robust 3-Year Structural Warranty, delivering long-term reliability and cost savings. It's time to overcome the challenges and protect your investment.

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