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Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester

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Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester

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Brand Name : YT

Model Number : D4H D4D D4E

Place of Origin : China (Mainland)

MOQ : 1PCS

Price : Negotiable

Payment Terms : L/C,T/T

Supply Ability : 10000 PCS/Month

Delivery Time : 7-30 Days

Packaging Details : Standard Exporting Packing

Condition : New

Color : Grey, Yellow, Other

Certification : CE, ISO9001: 2000

Finish : Smooth

Model NO. : D4H D4D D4E

Material : 50mn

Quality : Genuine Quality

Technique : Forging & Casting

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Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester


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.


Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester


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 D3C

Tired of your D3C suffering from:

  • Premature roller failure on harsh, rocky ground?
  • Spiraling maintenance bills as hours climb?
  • Profit-killing unplanned downtime?

Upgrade to Our D3C Rollers for Proven Results & ROI:

  • ✅ Save 22% on Fuel: Advanced design delivers significantly lower rolling resistance.
  • ✅ Perfect Komatsu Fit: Direct interchange with 70G-75-21100 rollers - installs seamlessly.
  • ✅ Unmatched Durability: Built tough with premium alloys, backed by a robust 3-Year Structural Warranty.

Unstoppable Traction & Uptime Start Here:

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


Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester



4. Production Processes


Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester



5. Track Roller Structure



Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester



6. Design/Structure/Main Dimensions of Installation


Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester





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


Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester


Quality Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester wholesale

Caterpillar OEM Quality Undercarriage Spare Parts For D4H D4D D4E Double Flanges Track Rollers for Bulldozer and Harvester Images

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