High Rigidity Planetary Gear RV Reducer Gearbox for Heavy Duty Robotic Arms
The Standard RV Reducer E Series is a precision reduction device featuring a two-stage closed differential gear system composed of a cycloid pinwheel and planetary gears, with a solid output shaft. It is widely used in industrial robotics applications. For robotic arms with end loads ≤20 kg, RV reducers are primarily employed in base-to-high-load joints (typically Joints 1-4). For robotic arms with end loads >20 kg, all six joints commonly utilize RV reducers. RV reducers serve as the core transmission component, ensuring robotic arm positioning accuracy.
- Solid Output Shaft: Enables direct load coupling and provides enhanced sealing convenience.
- Two-Stage Reduction Design: First Stage: Involute planetary gear transmission for initial speed reduction.
- Second Stage: Cycloid pinwheel transmission for further speed reduction and torque stabilization.
- High Rigidity & Impact Resistance: Rigid disc support at the output ensures uniform load distribution, minimizing deformation.
- Multi-crankshafts combined with high-precision bearings effectively disperse stress impacts.
- Compact Enclosed Structure: The transmission mechanism is integrated within the planetary carrier support bearings, significantly reducing axial dimensions.
Advantages
- High Load Capacity & Precision
- Torque range: 50–7000 N·m, suitable for heavy-duty robotic arms (e.g., welding, material handling robots).
- Backlash precision: <1 arcmin, with minimal repeat positioning error.
- Long Lifespan & High Reliability: Multi-tooth meshing (≥30 teeth) ensures even wear distribution, extending service life to 6,000–10,000 hours.
- Superior fatigue resistance compared to harmonic drives, making it ideal for 24/7 continuous operation.
- High Efficiency & Adaptability: Transmission efficiency: 85%–95%, minimizing energy loss.
- Wide reduction ratio range (31–203), adjustable via planetary gear teeth configuration.
- Exceptional Dynamic Performance: Low-vibration design guarantees smooth robotic arm operation, eliminating end-effector jitter.
- Rapid acceleration response, enabling high-speed trajectory tracking.







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