Dingtai manufactures single flange track rollers for Liebherr bulldozers. These rollers support machine weight and guide track chain alignment in demanding undercarriage systems.
As a factory-direct manufacturer, we provide full OEM service for global distributors and equipment fleets. Direct pricing, custom drawings, and consistent batch quality are standard.
Our rollers resist premature wear, flange cracking, and oil leakage. This reduces unplanned downtime and extends undercarriage service life on severe job sites.
Dingtai has 20+ years of engineering machinery manufacturing experience. ISO9001 and SGS certifications validate our quality management and material traceability for every order.
Each roller uses 35MnB steel and deep quenching heat treatment. The hardened tread and flange deliver high impact resistance under heavy bulldozer loads.
Core Selling Points
- Premium 35MnB Material: Single flange rollers are forged from 35MnB steel for high tensile strength and wear resistance under extreme crawler load and abrasive conditions.
- Deep Quenching/Heat Treatment: Tread and flange surfaces are induction hardened to HRC 52-58, creating a tough wear layer without compromising core toughness.
- Global Brand Compatibility: Direct replacement for Liebherr PR series bulldozers and other crawler dozers. Mounting dimensions match OEM part numbers to ensure interchangeability.
- ISO9001/SGS Certified: Production is managed under ISO9001 quality systems. SGS material reports and dimensional inspection records are available with each shipment.
Our catalog of Liebherr Bulldozer Track Roller-Single Flange includes various specifications, fully compatible with Liebherr bulldozers and crawler dozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel |
| Heat Treatment | Integral quenching + tread/flange induction hardening |
| Tread Hardness | HRC 52-58 |
| Hardened Depth | 6-10 mm |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 2,000 working hours |
2. OEM & Customization
We match original Liebherr drawings, part numbers, and custom dimensions. Production follows strict OEM tolerances for shaft fit, flange profile, and sealing grooves.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Dozer | Liebherr | PR 724, PR 734, PR 744, PR 754, PR 764, PR 776 |
4. Delivery & Logistics
Factory-direct pricing, flexible MOQ, and reliable sea/air freight. Standard export packaging protects rollers; delivery schedules align with dealer inventory and fleet maintenance windows.
Technical Features
Single flange rollers use a floating seal design. The seal maintains a constant oil film while preventing dirt, sand, and moisture ingress into the roller cavity.
The shaft and bimetal bushing are precision-ground. This reduces friction, supports heavy radial loads, and minimizes heat generation during continuous dozer operation.
Deep-hardened tread and flange edges resist spalling and flange wear. Metallurgical consistency ensures long service life under rock and abrasive soil conditions.
Applications
- Mining
- Road Construction
- Quarrying
- Landfill
- Forestry
- Heavy Civil Construction
Frequently Asked Questions
Q: What is the minimum order quantity?
A: Usually one complete machine set or mixed model batch. Sample orders are accepted before bulk purchase.
Q: What is delivery time?
A: Standard production takes 15-30 days, depending on quantity and custom machining requirements.
Q: How deep is heat treatment on track rollers?
A: Tread and flange hardened layer is typically 6-10 mm, with surface hardness HRC 52-58.
Q: What warranty do you provide?
A: 12 months or 2,000 working hours against material and manufacturing defects under normal operation.
Q: Can you match specific Liebherr part numbers?
A: Yes. Send OEM part number or drawing; we confirm dimensions and produce exact replacement rollers.
Q: Are sample orders available?
A: Yes, sample rollers can be supplied before bulk order. Freight and sample cost are confirmed case by case.
Maintenance Guide
- Installation: Clean mounting bores and shafts before assembly. Apply specified torque to bolts and verify roller rotates freely without axial play.
- Inspection: Check for oil leakage, flange cracks, and uneven tread wear every 250 hours. Remove rocks or debris caught in roller gaps immediately.
- Replacement: Replace rollers when tread wear exceeds OEM limits or flange thickness falls below service specification. Always replace seals and hardware together.