We manufacture Case bulldozer carrier rollers that support track frame weight and guide track chain alignment in the undercarriage system.
Factory-direct operations provide complete OEM manufacturing services for global distributors, equipment dealers, and construction fleet procurement professionals.
Precision-machined carrier rollers resist flange wear and internal failure, reducing unplanned downtime and premature track chain replacement costs.
With over 20 years of manufacturing experience and ISO9001/SGS certified quality systems, Dingtai delivers repeatable undercarriage component reliability.
Carrier rollers use premium 35MnB steel and deep quenching heat treatment to achieve hardened tread and flange surfaces for extended service life.
Core Selling Points
- Premium 35MnB Material: Forged from 35MnB alloy steel, providing high tensile strength and resistance against impact loads in demanding bulldozer operations.
- Deep Quenching/Heat Treatment: Induction hardening produces HRC 50-60 tread surfaces, ensuring superior wear resistance and extended component life under abrasive conditions.
- Global Brand Compatibility: Manufactured to match Case OEM dimensions and fitment standards, ensuring direct replacement without field modification.
- 100% QC Inspection: Every carrier roller undergoes dimensional checks, hardness testing, and visual inspection before packaging to guarantee consistent performance.
Product Grid
Our catalog of Case Bulldozer Carrier Roller includes various specifications, fully compatible with Case excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 alloy steel |
| Tread Hardness | HRC 50-60 |
| Hardening Depth | 4-8 mm induction hardened |
| Process | Precision forging, CNC machining, induction hardening |
| Bearing Type | High-load roller bearing |
| Certification | ISO9001 / SGS |
| Warranty | 12 months / 2,000 hours |
2. OEM & Customization
We match customer drawings and OEM part numbers. Custom dimensions and private labeling are available with strict adherence to Case OEM specifications.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Bulldozer | Case | 450, 850, 1150, 1650, 1850 |
4. Delivery & Logistics
Factory-direct pricing, flexible MOQ from 20 pieces, and reliable export packing. We ship via sea, air, or express to major ports worldwide.
Technical Features
Carrier rollers utilize double-cone floating seals to prevent lubricant leakage and block abrasive dirt ingress under high radial loads.
Precision-machined shafts and high-load bearings maintain smooth rotation, reducing rolling resistance and track link wear.
The forged steel shell and induction-hardened tread resist spalling and flange wear, extending undercarriage service intervals in rocky conditions.
Applications
- Mining operations
- Road construction
- Quarrying and aggregate
- Land clearing and forestry
- Heavy demolition
Frequently Asked Questions
- What is the MOQ for Case bulldozer carrier rollers?
Standard MOQ is 20 pieces per model. Trial orders may be negotiable. - What is the typical delivery time?
15-25 days after order confirmation, depending on quantity and custom specifications. - How deep is the heat treatment hardening?
Induction hardening depth ranges from 4-8 mm on the tread surface, reaching HRC 50-60. - What warranty does Dingtai provide?
12 months or 2,000 operating hours against manufacturing defects under normal use. - Can you match OEM part numbers?
Yes. Provide Case part numbers or drawings and we cross-reference dimensions for direct fit. - Do you offer samples?
Yes, sample orders are available for quality verification before bulk production.
Maintenance Guide
- Installation: Verify bracket alignment and bolt torque. Ensure the roller rotates freely before track installation.
- Lubrication check: Check for oil leakage around floating seals every 500 hours; replace damaged seals promptly.
- Wear inspection: Measure tread thickness and flange width at regular intervals. Replace when wear exceeds OEM service limits.
- Rotation pattern: Maintain even track tension and avoid excessive speed in abrasive material to reduce uneven roller wear.