High Precision Harmonic Drive Strain Wave Gear For Industrial Robots

High Precision Harmonic Drive Strain Wave Gear

Product Description 

Strain wave gearing (also known as harmonic drive gearing) is a type of mechanical gear system that uses a flexible spline with external teeth, which is deformed by a rotating elliptical plug to engage with the internal gear teeth of an outer spline.
Strain wave gearing has some advantages over traditional gearing systems such as helical or planetary gears, including:

• no backlash
• compactness and light weight,
• high gear ratios
• reconfigurable ratios within a standard housing
• good resolution and excellent repeatability (linear representation) when repositioning inertial loads
• high torque capability
• coaxial input and output shafts

High gear reduction ratios are possible in a small volume (a ratio from 30:1 up to 320:1 is possible in the same space in which planetary gears typically only produce a 10:1 ratio).
Disadvantages include a tendency for 'wind-up' (a torsional spring rate) in the low torque region.
Strain wave gearing is commonly used in robotics and aerospace. It can provide gear reduction but may also be used to increase rotational speed[citation needed], or for differential gearing.

Key Features

• Cup-shaped structure, high torque capacity, high stiffness, standard barrel structure with high rigidity full roller cross bearings and long lifespan.
• LS tooth profile design, self-developed CMP heat treatment process, 1um track precision grinding, providing higher rigidity, precision, and torque.
• Compact and concise design with zero backlash, direct motor connection for convenient installation.
• Input and output coaxial.
• Excellent positional accuracy and repeatability.

Rated Parameters Table of Miniature Harmonic Drive