Track Roller for CAT D8T 246-0775/246-0779

As a manufacturer focusing on undercarriage systems, we understand how critical every component is for a CAT D8T bulldozer working in quarry, mining, and large-scale earthmoving projects.

This Track Roller for CAT D8T 246-0775/246-0779  is designed and produced by Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., ensuring stable performance under continuous heavy load conditions.

· 246-0775: Single flange roller

· 246-0779: Double flange roller

These two types work together to maintain correct track alignment and reduce lateral movement during operation.

Key Advantages

Based on real production experience in undercarriage manufacturing, we focus on durability rather than theory.

· Solid forged roller shell for higher impact resistance

· Boron steel material improves wear life in abrasive soil conditions

· Heat-treated tread surface hardness HRC 52–58

· Deep induction hardening layer (5–8 mm) for long service stability

· Fully sealed lubrication system for long-term maintenance-free use

Each Track Roller for CAT D8T 246-0775/246-0779  is designed to reduce downtime and improve machine uptime in harsh working environments.

Technical Specifications

· OEM Numbers: 246-0775 / 246-0779

· Machine Model: CAT D8T / D8R Bulldozer

· Material: 40Mn2 / 50Mn Boron Steel

· Hardness: HRC 52–58

· Seal Type: Floating oil seal, fully sealed system

· Bush Type: Bimetallic copper bush

· Testing: 100% UT (Ultrasonic) + MT (Magnetic Particle)

· Service Life: 2000+ working hours (depending on conditions) 

Manufacturing Process

In our factory, every roller follows a controlled production route:

Forging → CNC machining → Heat treatment → Assembly → Sealing test → Final inspection

We do not rely on random sampling. Each batch of Track Roller for CAT D8T 246-0775/246-0779  is fully inspected.

· Ultrasonic testing to detect internal defects

· Magnetic particle inspection for surface cracks

· Air pressure sealing test before packaging

This strict process reflects our long-term OEM experience supplying global dealers and contractors.

Application

This product is widely used in:

· Mining operations

· Quarry projects

· Heavy construction sites

· Earthmoving and land clearing

· Infrastructure development

It is compatible with CAT D8T high-load working environments where stability and wear resistance are essential.

FAQ

Q1: Why use both 246-0775 and 246-0779 rollers?
A: They are installed alternately to maintain track balance, reduce lateral deviation, and improve machine stability under heavy load.

Q2: Does the roller require additional lubrication?
A: No. It is factory-filled with high-grade oil and fully sealed. It is ready for direct installation.

Q3: What if leakage or failure happens?
A: We provide 1-year or 2000 working hours warranty. Verified defects are replaced in the next shipment.

Why Choose Us

As a source factory, we provide:

· Direct manufacturing supply (no middle cost)

· Stable OEM production experience

· Strict quality inspection system

· Long-term export experience to global markets

We focus on real field performance, not only specifications.

Contact

For bulk orders or technical support of Track Roller for CAT D8T 246-0775/246-0779 :

WhatsApp: +86 13799896866
Contact Person: Eleven (Export Manager)

We support OEM branding, sample testing, and long-term cooperation for dealers and contractors worldwide.