When selecting a harmonic drive gearbox for bionic organisms, several key factors must be considered — performance, structure, weight, and control. Load-bearing joints (such as the hip, knee, and shoulder) require harmonic drives with higher torque, while flexible joints (such as the wrist, ankle, or fingers) demand compact, fast-response, low-inertia gearboxes.This article focuses on how miniature harmonic drive gearboxes are applied in bionic robots.

HONPINE’s SHD and CSF series of ultra-small harmonic drives mark a breakthrough in compact harmonic drive technology. Comparable in size to a paperclip, these drives are available in four models (03, 05, 08, and 11), each offering multiple input/output configurations (shaft and flange) and gear ratios (30, 50, 80, and 100) to meet diverse torque and speed requirements—resulting in dozens of product variations.

With the development of science and technology, the application scope of robots is becoming wider and wider, including industrial and service levels. Robots in different fields require different reducers. For example, service robots require a small size and a certain load-bearing capacity to ensure the operation of the robot. HONPINE mini harmonic drive began to be developed based on market demand, and has been verified by the market and can be mass-produced.

The SHD-mini series harmonic drive is designed for applications with small volume and weight requirements, featuring compact axial dimensions and a top-hat style flexspline. This series exclusively supplies pre-assembled modular products for immediate use. The main bearing employs compact four-point contact ball bearings to directly support external loads. The shaft bore dimensions in this series can be customized to match specific motor shaft sizes. Select the most suitable motor model based on your mechanical design requirements.