Komatsu D20 SF track roller Excavator undercarriage parts
D20 SF track 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 SF track roller Products Details
- Wheel body: Made of 40Mn2 round steel with good hardenability through forging; heat treatment process of quenching and tempering + medium-frequency surface quenching ensures its strength and wear resistance.
- Shaft: Made of 45# round steel, with heat treatment process of quenching and tempering + medium-frequency surface quenching, surface hardness HRC52-60, hardened layer depth 3-6mm, with excellent comprehensive performance.
- Floating oil seal: Made of high-chromium and high-molybdenum alloy. Hardness HRC65-72, working surface roughness 0.1uM - 0.2uM.
- O-ring: Made of nitrile rubber raw material produced by copolymerization of butene and acrylonitrile, with better oil resistance and high-temperature resistance.
Key advantages
1. Adopts high-quality forged steel blank, integral heat treatment to improve overall hardness and wear resistance, extending service life under harsh construction environments.
2. Precision CNC machining for shaft and roller body, tight fit clearance effectively prevents oil leakage and early failure of internal bearings.
3. Advanced floating seal assembly resists mud, sand and muddy water intrusion, suitable for dusty, rocky and wet working conditions of D20 bulldozer.
4. Strict dimensional compliance with original D20 SF specification, direct interchangeable installation without modification, saving replacement downtime.
5. Optimized roller surface arc design reduces track chain friction and impact load, lowering chassis maintenance frequency and operating cost.
6. Rigorous factory pressure and durability testing, stable load-bearing performance to cope with heavy-load bulldozing and rough terrain travelling.
D20 SF track roller Applications
Track 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 track 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.