Motor assembly

Product Introduction

The core transmission assembly of a loader’s gearbox integrates key components such as the input shaft, output shaft, three shafts, gears for each gear position, planetary carrier, clutch assembly, bearings, and oil seals. It is the core carrier for power transmission, torque reduction, and gear shifting, directly determining the overall machine’s driving and operating performance and shifting smoothness.

Utilizing high-quality base materials for precision assembly, the shaft components are made of 40Cr high-strength alloy structural steel, and the gears are made of 20CrMnTi alloy carburized steel. Through precision processes such as forging, tempering, and carburizing quenching, all components are precisely matched with high concentricity, ensuring smooth operation and efficient transmission. Excellent overall sealing performance prevents dust and oil leaks, withstands high oil temperatures, and is impact-resistant. It is suitable for the complex working conditions of loaders, including heavy loads, high-frequency start-stop, and frequent gear shifting. Strictly conforming to original factory standard dimensions, it has strong interchangeability, requiring no modification and can directly replace the original gearbox core, significantly improving gearbox maintenance efficiency. It is compatible with various loader gearboxes for repair and new machine use.

Application Scenarios

• Construction Sites: Earthmoving, site leveling, road construction, frequent gear shifting, high/low speed switching, and low-speed heavy-load operation. The stable transmission of the core assembly ensures smooth operation with no jerking during gear shifts and no power loss.
• Mining and Quarrying: Heavy-load uphill operation, bumpy road conditions, and strong impact loads. Tightly connected components resist torsion and pressure, preventing loosening and damage, and withstanding long-term heavy loads, effectively preventing sudden gearbox failures and downtime.
• Sand and Gravel Yards, Coal Yards, and Mixing Plants: Continuous, high-frequency loading and unloading, material stacking and transfer under high load and high speed. Slow temperature rise, minimal degradation, and low failure rate ensure continuous operation and reduce maintenance costs.
• Gearbox Overhaul Kit: Compatible with severely worn or faulty gearboxes of 3-ton, 5-ton, 6-ton, and 7-ton wheel loaders. Complete core assembly replacement eliminates the need for individual component inspection and replacement, significantly shortening maintenance cycles.
• Harsh working conditions: Adaptable to dusty, high oil temperature, high frequency vibration and complex field working environments, oil-resistant, corrosion-resistant, and anti-aging, with all components well protected, extending the overall service life of the gearbox, and suitable for various complex working scenarios on construction sites.