High Precision Harmonic Drive Reducer, Zero Backlash P-Type Tooth Gearbox for Robot Joints, Aerospace & Precision Machine Tools

Zero backlash, high precision harmonic drive reducer for robots, aerospace & precision machinery

Categories: Harmonic Drive Gearboxes, Industrial Gear Reducer

Description
Technical Parameters

The harmonic drive reducer operates through a unique elastic deformation principle. The elliptical wave generator is installed on the input shaft with built-in thin-walled ball bearings. The flexible spline is a thin cup-shaped elastic metal part, and the fixed circular spline has two more gear teeth than the flexible spline. When the wave generator rotates, the flexible spline deforms periodically. The long-axis teeth mesh with the rigid spline, while the short-axis teeth separate. Relying on the tooth difference, it produces high reduction ratio transmission, converts high-speed input into low-speed and high-torque output, and ensures accurate power transmission

Advantages

Superior Transmission Performance & High Precision
This harmonic drive reducer features an ultra-wide transmission ratio range, with single-stage reduction ratios of 50 to 300, and the maximum can reach 60000. About 30% of gear teeth mesh simultaneously, greatly improving load capacity and stability. It achieves zero-backlash meshing, ultra-high transmission accuracy, smooth operation and low noise, perfectly meeting the strict precision requirements of high-end automation and precision equipment.
Ultra Compact & Lightweight Structure
Compared with traditional gear reducers, the harmonic drive reducer has an extremely miniaturized and integrated design. Under the same output torque, its volume is reduced by 2/3 and weight is reduced by 1/2. The lightweight and small-size design saves installation space, which is highly suitable for compact equipment such as humanoid robots, collaborative robot joints and portable precision instruments.
Rich Specifications & Upgraded Durability
It covers diversified product forms including component sets, servo mount gearheads and integrated gear units. Multiple flexible spline structures such as cup type, hat type and flat type are optional. By adopting new lightweight materials and optimized bearing design, it effectively extends service life, reduces fatigue loss of flexible spline, and balances manufacturing difficulty and long-term operating stability.

This reducer also has certain limitations. The flexible spline is subject to alternating fatigue load, with high processing difficulty and large starting torque. Manufacturers strictly control machining accuracy, transmission error and backlash to improve overall reliability

Application

1.Robot Industry
Widely used in industrial robotic arms, collaborative robots and humanoid robot joints to provide high-precision rotary motion control.
2.Aerospace & Special Environments
Capable of adapting to extreme working conditions such as ultra-low temperature and high pressure, meeting the long-term operation needs of aerospace equipment.
3.Precision Industrial Equipment
Stably applied to precision machine tools, optical instruments, medical devices and automated production machinery to support high-precision industrial processing and testing

Description	Harmonic Reducer
Single-stage ratio	50–300
Backlash	≤ 10 arcmin
Green Harmonic LCS-I Series	3.8 Nm ~ 503 Nm
Peak Torque	ST20-100: 82 Nm (peak) / 40 Nm (rated)
Max input speed	6500–8500 r/min
Compatible Motor Power	30W–1000W servo motors