R225LC-7 complete hydraulic final drive motor TM40 E0150301 Final Drive 38Q6-41100 39Q7-40100 31Q7-40070 Final Drive Motor

1. Product Overview

2. Core Product Advantages

• High Load-Bearing & High Torque Performance: Optimized gear reduction structure with a standard reduction ratio of 50.5:1 realizes stable high torque output. It effectively copes with heavy-load walking, climbing and uneven road driving conditions, ensuring strong and continuous power without stalling or power attenuation.
• Superior Durability & Wear Resistance: Core components including cylinder block, piston shoe, valve plate and driving gear are made of high-strength alloy steel with precision forging and heat treatment technology. The whole machine features high hardness, strong compression resistance and excellent wear resistance, greatly extending the service life under long-term high-intensity operation.
• Precision Manufacturing & Stable Operation: Adopts micron-level precision machining process for matching parts, with tight assembly tolerance control. The hydraulic system operates smoothly with low vibration and low noise, effectively avoiding oil leakage, jamming and other common faults, improving the overall operating stability of the excavator.
• Strong Compatibility & Easy Installation: Standard original factory installation size (30 mounting holes for frame and driving gear, 402mm driving gear inner diameter). It perfectly matches multiple mainstream excavator models, supports direct replacement, no modification required, greatly reducing installation time and maintenance cost.
• High Temperature Resistance & Oil Circuit Stability: Optimized hydraulic oil circuit design with high-quality sealing accessories, effectively resisting high temperature aging and hydraulic oil erosion. It maintains stable sealing performance in high-temperature and high-pressure working environments, avoiding oil leakage failures.
• Cost-Effective & Low Maintenance: Integrated modular design simplifies daily maintenance and part replacement. With low failure rate and long service cycle, it effectively reduces the later operation and maintenance costs of construction equipment.

• 
  

• Complete Technical Parameters

  Item	Technical Specification
  Product Model	TM40 (TM40VC / TM40VD / TM40VA Optional)
  Applicable Equipment	18-25 Ton Hydraulic Crawler Excavator
  Supporting Motor Model	MA180TM05
  Reduction Gearbox Model	GT42A04
  Standard Reduction Ratio	50.5:i
  Net Weight	278.8kg
  Driving Gear Inner Diameter	402mm
  Mounting Hole Quantity	30PCS (Frame & Driving Gear)
  Working Principle	Hydraulic Drive + Planetary Reduction
  Certification Standard	ISO9001 Quality Certification
  Product Condition	100% New, Factory Tested
  Surface Treatment	Anti-rust Paint Spraying (Black)

•