Harmonic Actuator and Precision Gearbox Manufacturer -Suzhou Honpine Precision Industry Co., Ltd.

Harmonic Drive Gearbox – Complete Introduction and Analysis

The Harmonic Drive Gearbox, also known as a Strain Wave Gearbox, is irreplaceable in applications requiring high precision, compact size, and low load.It is widely used in collaborative robots, servo systems, precision positioning and scanning equipment, aerospace, defense, and other high-precision systems.Thanks to its zero backlash, high reduction ratio, lightweight design, high positioning accuracy, and excellent repeatability, the harmonic drive has become an essential precision transmission solution in many advanced fields.

Harmonic Joint Motor VS Planetary Joint Motor

When collaborative robots precisely pick up chips, AGVs shuttle smoothly through shelves, or surgical robots perform millimeter-level operations, few people notice that the joint motor contains a "power heart" that determines its performance—the reducer. Among them, harmonic reducers and planetary reducers are two mainstream technical solutions, and their differences directly affect the precision, lifespan, and applicable scenarios of the joint motors.

Why are harmonic robot joint actuators and planetary robot joint actuators the ideal choices for the upper and lower limbs of humanoid robots, respectively?

The selection of robot joint actuators for humanoid robots is essentially a precise matching of functional requirements, performance trade-offs, and cost control. Among today’s mainstream solutions, harmonic joint actuators are typically prioritized for upper limbs, while planetary joint actuators are favored for lower limbs. This combination is not accidental, but rather the optimal solution derived from the distinct motion characteristics of the upper and lower body. The differentiated approaches taken by companies such as Unitree and UBTECH also stem from specific considerations tied to their product positioning.

The output torque of a harmonic drive does not continue to increase indefinitely as the reduction ratio increases

Harmonic drives, with their compact structure, low backlash, and high rigidity, have become core components in high-end equipment such as robots and aerospace systems. However, many engineers encounter a common phenomenon: when the reduction ratio increases beyond a certain level (for example, above 100), the growth of output torque gradually slows down or even levels off—clearly contradicting the derived assumption that “torque is proportional to the reduction ratio.”

Differences Between Spur Gear Planetary Gearboxes and Helical Gear Planetary Gearboxes

This article will analyze the differences between spur gear planetary gearboxes and helical gear planetary gearboxes from various aspects such as construction, precision, transmission torque and efficiency, axial force, and load capacity.

Harmonic Drive Gearbox Advantages,Disadvantages,Backlash,Devices Comprehensive Analysis

This article will provide a comprehensive analysis of harmonic drive gearboxes, including their introduction, advantages and disadvantages, backlash, application scenarios, and installation precautions.

The Most Comprehensive Guide to Planetary Gearbox Selection and Common Pitfalls

As a “core link” in transmission systems, planetary gearboxes are widely used in automation equipment, robotics, conveyor lines, and many other applications.
When selecting a planetary gearbox, people usually first think of parameters such as output torque, speed and gear ratio, motor type, maximum output speed, backlash, torsional stiffness, service life, mounting method, and output configuration.
Based on many years of experience in supporting customers with gearbox selection, HONPINE has summarized a more in-depth guide and several common selection pitfalls to help users make more reliable and cost-effective decisions.

5 Key Factors When Selecting a Precision Robot Joint Motors

As robotics technology continues to evolve toward higher precision and higher dynamic performance, robot joint motors—often referred to as the “motion cells” of robots—play a critical role in determining overall flexibility, payload capacity, and system reliability. Analyzing their core performance indicators is essential for optimized design and proper selection.

How Joint Motors Are Redefining the Future of Robotic Arms?

The rise of embodied intelligence is pushing the design of robotic arms toward an entirely new paradigm. No longer are they merely tools for executing preprogrammed trajectories; instead, they are becoming extensions of an intelligent agent’s “proprioceptive body” in the physical world—capable of active exploration, dexterous manipulation, and safe interaction. This fundamental shift in objectives places unprecedentedly stringent demands on the underlying hardware architecture, control logic, and software ecosystem of robotic arms. So what kind of joint motors will future robotic arms need to use?

Precision Reducers and Motors Comprehensive Analysis

This article provides the most comprehensive analysis and introduction of the four major categories of precision reducers and explains their future development trends especially precision motors.

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MOTION CONTROL STORIES

The Role of Harmonic Drive Gears in Achieving 5–10 μm Accuracy in Dental Milling Machines

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Why Are Harmonic Rotary Actuators Perfect for Medical Equipment?

How HONPINE IP68 Harmonic Drive Motor Helps Underwater Robots Achieve High-Precision Operation

How Harmonic Reducers Revolutionize Sewer Cleaning Robots: Precision Meets Power

Why Planetary Gearboxes Are Well Suited for Industrial Packaging Machines？

Why Planetary Gearboxes Are Perfectly Suited for AGV Drive Wheels？

How Planetary Gearboxes Enhance CNC Servo Motor and Stepper Motor Performance？