Planetary gear reducer E series

cycloidalharmoniccoaxial

Introduction 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 typically utilize RV reducers. RV reducers serve as the core transmission component ensuring robotic arm positioning accuracy. Features - 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-crank shafts 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. Technical Specifications (Summary) - Torque range: 50–7000 N·m - Backlash: <1 arcmin - Transmission efficiency: 85%–95% - Reduction ratio range: 31–203 - Service life: 6,000–10,000 hours - Rated life: up to 10,000 hours (model dependent) - Weight: 4.7 kg to 66.4 kg (model dependent)