Komatsu D7G Carrier roller Bulldozer undercarriage parts
D7G Carrier Roller Product Description
- Place of Origin: Fujian, China
- Condition: New
- Packing: Wooden case, Pallet
- Material: Alloy Steel or Steel
- Warranty: 1 Years
- Sample: Available
- Size: Standard
- Color: Customer’s Request
- Logo: Customer’s Request
- Technical: Forging and Casting
- OEM:Avaliable
- Packaging Details: in wooden case or fumigate pallet
- Port: Xiamen Port
- Supply Ability: 50000 Pieces / Month
D7G Carrier Roller Products Details
- The wholesale carrier roller for the D7G excavator is a critical component of the undercarriage system, designed to support the weight of the track chain and prevent it from sagging. Manufactured using high-precision forging and heat-treatment processes, this roller ensures the track maintains proper tension and alignment during operation.
- Compatibility: Specifically engineered for D7G models.
- Material: High-strength alloy steel (40Mn2 or equivalent).
- Hardness: Surface hardness reaches HRC 52-60 with a depth of 4mm-8mm for maximum wear resistance.
- Sealing: High-performance mechanical seals and premium lubricants for maintenance-free operation.
Key advantages
1. Crafted from high-strength alloy steel with professional heat treatment, boasting great wear and impact resistance for tough job sites.
2. Precision machining controls perfect fitting clearance, effectively stopping oil leakage and premature bearing wear.
3. Heavy-duty floating oil seal resists mud, sand and muddy water intrusion to protect internal components.
4. Manufactured to strict D7G OEM specifications, allowing direct installation without any modifications.
5. Optimized roller surface lowers friction with upper track chains, extending service life and reducing maintenance costs.
6. Rigorous bulldozer parts factory load and durability tests ensure stable supporting performance for long-time heavy-duty operation.

D7G Carrier Roller Applications
Carrier rollers are core components of excavator undercarriages, essential for the normal operation of excavators in various scenarios.
They are widely used in construction sites, mining areas, road construction, bridge engineering, and agricultural land reclamation.
Whether it is earthmoving, excavation, loading, or leveling, our Komatsu carrier roller provide reliable support for excavators, ensuring efficient and stable operation of the equipment.
They are also suitable for maintenance and replacement of old undercarriage parts, helping customers reduce equipment downtime.
