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M4V290/170D-GM85VA SNHC

5 week ago
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Product details
The Nabtesco M4V290/170D-GM85VA is not a publicly listed standard model, but based on available information, it can be inferred to be a high-torque, high-reliability gearbox or reducer from Nabtesco, suitable for drive systems in construction machinery (e.g., excavators) for travel or slewing applications.Below is a detailed analysis:
 
I. Model Breakdown and Speculation
 
  1. Brand and Series
 
      • Nabtesco: A global leader in precision reducers, renowned for high accuracy, rigidity, and long service life, widely used in industrial robots, construction machinery, and machine tools.
 
      • M4V290/170D: Likely represents the reducer model or design code, where "M4V" may indicate the series or structural type, and "290/170D" may relate to reduction ratio, dimensions, or design version.
 
      • GM85VA: May correlate with the product series or performance grade. For example, "GM" could denote construction machinery reducers, "85" might represent a torque class (e.g., 85,000 N·m), and "VA" could indicate a specific design or material variant.
 
  2. Product Type
 
      • Based on Nabtesco's product lineup, this model likely falls undertravel reducersorslewing reducersfor excavators, cranes, and other equipment.
 
      • For instance, a similar model, "SK460-8 Final Drive M4V290-170," is described as a travel reducer for excavators, weighing 700 kg and suitable for large-scale construction machinery.
 
II. Technical Specifications (Inferred)
 
  1. Core Performance
 
      • High Torque Output: Likely comparable to the GM85 series, offering up to 85,000 N·m of torque for heavy-duty applications.
 
      • High Reduction Ratio: If "290/170D" indicates reduction ratio, it may provide multi-stage reduction to match diverse operating conditions.
 
      • Durability: Constructed from high-strength materials (e.g., alloy steel) with specialized heat treatment for harsh environments.
 
  2. Structure and Design
 
      • Compact Design: May integrate planetary or cycloidal gearing for high torque density and miniaturization.
 
      • Sealing and Protection: Equipped with multi-layer sealing systems (e.g., lip seals, labyrinth seals) to prevent oil leakage and dust ingress.
 
      • Mounting Interface: Supports flange-mounted or shaft-mounted installation for compatibility with various equipment.
 
III. Typical Applications
 
  1. Construction Machinery Travel Drives
 
      • Used in tracked or wheeled travel systems of excavators, bulldozers, and other equipment to provide low-speed, high-torque output for stability and traction on rough terrain.
 
      • Example: Applied in models like Case 490 and Doosan DH300-7 excavators.
 
  2. Slewing Mechanism Drives
 
      • Powers the rotational movement of upper structures, such as excavator platforms, enabling precise positioning and smooth rotation.
 
IV. Selection Recommendations
 
  1. Confirm Operational Requirements
 
      • Identify equipment type (e.g., excavator model), load demands (e.g., torque, speed), and installation space to match reducer performance.
 
      • Example: For a Sany SY485 excavator, verify its travel system's specific requirements for reduction ratio and torque.
 
  2. Verify Compatibility
 
      • Check input/output interfaces (e.g., shaft diameter, flange size) for alignment with the equipment's drive motor or gearbox.
 
      • Confirm lubrication method (e.g., forced lubrication or splash lubrication) and cooling needs (e.g., natural cooling or forced air cooling).
 
  3. Consult Official Channels
 
      • Obtain model manuals from Nabtesco's official website or authorized distributors to confirm technical parameters (e.g., reduction ratio, torque curve, efficiency) and selection guidelines.
 
      • Example: Shanghai Nabtesco Transmission Equipment Co., Ltd. offers localized technical support for the Chinese market.
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