The Carrier Roller, also known as Top Roller or Upper Roller, is mounted above the track frame of the Doosan DX225 crawler excavator.
Its main function is to support the upper track chain and maintain correct chain alignment during travelling. By reducing friction between the track chain and undercarriage frame, the carrier roller helps improve travelling stability and extend the service life of the entire undercarriage system.
A worn or seized carrier roller may cause:
Our DX225 carrier rollers are manufactured using professional undercarriage production processes and provide a reliable aftermarket replacement solution for equipment dealers, distributors, repair workshops and fleet operators.
Compatible with:
Doosan DX225
The exact fitment should be confirmed according to machine serial number or existing carrier roller dimensions.
Manufactured from:
40Mn2 Alloy Steel
Benefits:
Typical specification:
The hardened tread surface improves resistance against continuous track-chain contact and abrasive working conditions.
Equipped with:
The sealed structure helps prevent lubricant leakage and protects internal components against mud, dust and water contamination.
Manufactured with controlled:
Designed for direct bolt-on replacement after confirming correct specifications.
| Item | Specification / Detail |
|---|---|
| Product Type | Excavator Undercarriage Carrier Roller |
| Machine Model | Doosan DX225 |
| Compatible Models | DX225 |
| Machine Type | Crawler Excavator |
| Machine Class | Approx. 22 Ton |
| OEM Part Number | Confirm by machine serial number |
| 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 |
| Mounting Configuration | OEM Standard |
| Installation | Bolt-on Direct Replacement |
| Application | Construction / Mining / Earthmoving |
| Shipping Note | Heavy Component — Sea Freight Recommended |
The Carrier Roller, also known as Top Roller or Upper Roller, is mounted above the track frame of the Doosan DX225 crawler excavator.
Its main function is to support the upper track chain and maintain correct chain alignment during travelling. By reducing friction between the track chain and undercarriage frame, the carrier roller helps improve travelling stability and extend the service life of the entire undercarriage system.
A worn or seized carrier roller may cause:
Our DX225 carrier rollers are manufactured using professional undercarriage production processes and provide a reliable aftermarket replacement solution for equipment dealers, distributors, repair workshops and fleet operators.
Compatible with:
Doosan DX225
The exact fitment should be confirmed according to machine serial number or existing carrier roller dimensions.
Manufactured from:
40Mn2 Alloy Steel
Benefits:
Typical specification:
The hardened tread surface improves resistance against continuous track-chain contact and abrasive working conditions.
Equipped with:
The sealed structure helps prevent lubricant leakage and protects internal components against mud, dust and water contamination.
Manufactured with controlled:
Designed for direct bolt-on replacement after confirming correct specifications.
| Item | Specification / Detail |
|---|---|
| Product Type | Excavator Undercarriage Carrier Roller |
| Machine Model | Doosan DX225 |
| Compatible Models | DX225 |
| Machine Type | Crawler Excavator |
| Machine Class | Approx. 22 Ton |
| OEM Part Number | Confirm by machine serial number |
| 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 |
| Mounting Configuration | OEM Standard |
| Installation | Bolt-on Direct Replacement |
| Application | Construction / Mining / Earthmoving |
| Shipping Note | Heavy Component — Sea Freight Recommended |
