Komatsu D20 Carrier roller Bulldozer undercarriage parts
D20 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
D20 Carrier Roller Products Details
- The carrier roller for the D20 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 D20 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.High-strength alloy steel material with integral heat treatment ensures superior wear and impact resistance for bulldozer rough working conditions.
2. Precision processed shaft and roller body with accurate clearance effectively prevents oil leakage and early bearing damage.
3. Reliable floating oil seal prevents mud, silt and wastewater from entering inside, protecting internal components.
4. Manufactured strictly according to D20 custom carrier roller sizes, direct replacement without any modification.
5. Optimized roller surface minimizes friction with upper track links, extending service life and reducing maintenance costs.
6. All products pass bulldozer parts factory load and durability tests to guarantee stable supporting performance under long-hour operation.

D20 Carrier Roller Applications
Komatsu carrier roller 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 carrier rollers 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.
