The Track Roller, also called Bottom Roller or Lower Roller, is a key undercarriage component installed beneath the track frame of crawler bulldozers.
For Komatsu D85 and Shantui SD22, the compatible track roller supports the machine weight, guides the track chain and transfers operating loads to the ground through the crawler system.
During bulldozer operation, track rollers are continuously exposed to:
A worn or damaged track roller may result in:
Our D85 / SD22 track rollers are manufactured using professional undercarriage production processes to provide a reliable aftermarket replacement solution for construction, earthmoving and heavy-duty bulldozer applications.
Designed for compatible:
One replacement roller can serve both applications where the undercarriage specifications are confirmed to be interchangeable.
Manufactured from:
40Mn2 Alloy Steel
Advantages:
The roller tread surface is induction hardened to improve resistance against abrasive working conditions.
Suitable for demanding applications involving:
Equipped with:
The sealing system helps prevent lubricant leakage and protects the internal bearing area from dust, mud and water contamination.
Manufactured with precision-controlled:
Designed for direct bolt-on installation without additional modification when the correct configuration is selected.
| Item | Specification / Detail |
|---|---|
| Product Type | Bulldozer Undercarriage Track Roller |
| Compatible Machines | Komatsu D85 / Shantui SD22 |
| Machine Type | Crawler Bulldozer |
| Applicable Machine Class | Approx. 22 Ton |
| Roller Structure | Heavy-duty Steel Body with Precision Machining |
| Material Grade | 40Mn2 Alloy Steel |
| Manufacturing Process | Forging / Casting + CNC Machining |
| Heat Treatment | Induction Hardening |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 8mm-12mm |
| Seal System | Heavy-duty Floating Oil Seal |
| Lubrication System | Lifetime Internal Lubrication |
| Bearing Structure | Hardened Shaft + Wear-resistant Bushing |
| Quality Inspection | Dimension, Hardness and Sealing Inspection |
| Flange Type | Single Flange / Double Flange |
| Installation | OEM-Style, Bolt-on Direct Replacement |
| Application | Construction / Earthmoving / Bulldozing |
| Shipping Note | Heavy Component — Sea Freight Recommended |
The Track Roller, also called Bottom Roller or Lower Roller, is a key undercarriage component installed beneath the track frame of crawler bulldozers.
For Komatsu D85 and Shantui SD22, the compatible track roller supports the machine weight, guides the track chain and transfers operating loads to the ground through the crawler system.
During bulldozer operation, track rollers are continuously exposed to:
A worn or damaged track roller may result in:
Our D85 / SD22 track rollers are manufactured using professional undercarriage production processes to provide a reliable aftermarket replacement solution for construction, earthmoving and heavy-duty bulldozer applications.
Designed for compatible:
One replacement roller can serve both applications where the undercarriage specifications are confirmed to be interchangeable.
Manufactured from:
40Mn2 Alloy Steel
Advantages:
The roller tread surface is induction hardened to improve resistance against abrasive working conditions.
Suitable for demanding applications involving:
Equipped with:
The sealing system helps prevent lubricant leakage and protects the internal bearing area from dust, mud and water contamination.
Manufactured with precision-controlled:
Designed for direct bolt-on installation without additional modification when the correct configuration is selected.
| Item | Specification / Detail |
|---|---|
| Product Type | Bulldozer Undercarriage Track Roller |
| Compatible Machines | Komatsu D85 / Shantui SD22 |
| Machine Type | Crawler Bulldozer |
| Applicable Machine Class | Approx. 22 Ton |
| Roller Structure | Heavy-duty Steel Body with Precision Machining |
| Material Grade | 40Mn2 Alloy Steel |
| Manufacturing Process | Forging / Casting + CNC Machining |
| Heat Treatment | Induction Hardening |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 8mm-12mm |
| Seal System | Heavy-duty Floating Oil Seal |
| Lubrication System | Lifetime Internal Lubrication |
| Bearing Structure | Hardened Shaft + Wear-resistant Bushing |
| Quality Inspection | Dimension, Hardness and Sealing Inspection |
| Flange Type | Single Flange / Double Flange |
| Installation | OEM-Style, Bolt-on Direct Replacement |
| Application | Construction / Earthmoving / Bulldozing |
| Shipping Note | Heavy Component — Sea Freight Recommended |
