The reducer in humanoid robots mainly undertakes the core functions of reducing speed, increasing torque, improving accuracy and load capacity. By reducing speed, increasing torque and enhancing transmission accuracy, it ensures the precise motion and high load performance of robot joints.
Deceleration and torque increase: Convert the high-speed low torque output of the motor into low-speed high torque output to meet the load requirements of humanoid robot joints against gravity, friction, and other loads.
Improve accuracy: Reduce transmission clearance (return clearance) through precision gear structure to ensure millimeter level accuracy of joint movements.
Enhance load capacity: Improve the impact resistance and durability of robot joints, and adapt to long-term operation in complex environments.
Mainstream application solutions
Tesla Optimus robot: The entire body uses 14 harmonic reducers (rotating joints such as shoulders and elbows) and 12 planetary reducers (inside the dexterous hand).
Domestic humanoid robots: Some use toroidal enveloping worm gear reducers due to their small size and adaptability to joints with limited space such as fingers.









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