Hydraulic Parts 1025826 Travel 1st Carrier Assembly for Hitachi ZX200 ZX180LC Final Drive

Premium 1025826 Travel 1st Carrier Assembly for Hitachi Excavators

The 1025826 Traveling 1st Carrier Assembly is the primary reduction component within the final drive gearbox of Hitachi 20-ton class excavators (including ZX200 series). Serving as the critical link between the travel motor output shaft and the planetary gears, this high-strength carrier sustains intense rotational forces and shock loads. Manufactured to exact OEM specifications, our carrier ensures smooth power transmission and restores factory-level track speed and torque.

Advanced Technical Specifications

• Material & Treatment: Forged from high-strength ZG40Cr cast steel. Subjected to overall quenching and tempering with surface induction hardening to achieve a robust hardness of HRC 30–35.

• Internal Sun Gear Spline: Features a precision-machined involute spline designed to perfectly mate with the 2049585 travel motor output shaft. (Specs: Modulus 3, 22 Teeth, 30° Pressure Angle).

• Planetary Pin Holes: Equipped with four uniformly distributed φ35mm precision bores, engineered to seamlessly house 3082155 or 3082148 planetary gears.

• Operational Reliability: Designed for forced splash lubrication with dedicated final drive gear oil, capable of withstanding extreme working temperatures from -40℃ to +120℃.

Hitachi Model Compatibility

This 1st stage carrier is universally compatible with the travel motor reduction units on the following Hitachi machinery:

• ZAXIS (ZX) Series: ZX180LC, ZX180LC-3, ZX200, ZX200-3, ZX200LC, ZX210, ZX210H, ZX210K, ZX240, ZX240-3

• Specialized/Forestry Models: IZX200, IZX200LC, IZX210F, IZX210MF, ZR420JC

Troubleshooting: When to Replace the 1st Stage Carrier?

According to the Topvelsun engineering department, a compromised 1st stage carrier can destroy the entire travel motor if left unchecked. Look out for these signs during final drive maintenance: