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harmonic drive reduction ratio

HMHG-Ⅲ Simple Unit Flat Hollow Shaft Series Harmonic Drive

HMHG-III series flex spline belongs to the hollow flanging standard structure and the whole structure is compact, it is also a kind of the HMHG Series power drive gearbox. The wave generator adopts large - caliber hollow shaft and crossed roller bearing to bear loads in radial and axial directions. The structure of the power monoblock harmonic drive is simple, and convenient for user customization and installation. Contact PICEA Motion if you want to know more harmonic gear drive reducer details.

Features of HMHG-Ⅲ Simple Unit (Flat Hollow Shaft) Series Harmonic Drive


  • Easy to install and use with the advanced power monoblock harmonic drive technologies of harmonic drive company Han's Motion

  • Compact design

  • Zero backlash

  • Input/output coaxial

  • Excellent positioning accuracy and rotation accuracy

  • 30%higher torque capacity than the HMHS series

  • 43%longer lifetime than the HMHS series


Features of HMHG-Ⅲ Simple Unit (Flat Hollow Shaft) Series Harmonic Drive


Applications of HMHG-Ⅲ Simple Unit Flat Hollow Shaft Series Harmonic Drive


  • Industrial Robots

  • Service Robots

  • Machining Center

  • Diagnostic Imaging



Parameters of HMHG-Ⅲ Simple Unit (Flat Hollow Shaft) Series Harmonic Drive

ModelReduction ratioRated torque at input 2000r/minPermissible peak torque at start/stopPermissible max.value of ave.load torqueInstantaneous permissible max. torquePermissible max.input rotational speedPermissible ave. input rotational speedBacklash (arc sec)Transmission accuracy (arc sec)


NmNmNmNmr/minr/minWW
1450723946800035002090
80103014512090
100103614701090
175021443491700035002090
802956351132090
1003170511431090
2050337344127600035002060
804496611652060
10052107641911060
12052113641611060
25505112772242550035002060
80821781133322060
100872041403691060
120872171403951060
325099281140497450035002060
801533952177381060
1001784332818411060
1201784592818921060
4050178523255892400030001060
8026867536912701060
10034573848414001060
12038280258615301060


Contact Us
Contact PICEA Motion for Different Types of Harmonic Drive

Related HMHG Series Harmonic Drive Hat Type

Building 36, Zone 4, Huaide Cuigang Industrial Park, Fuyong Street, Bao'an District, Shenzhen, 518101, China
sunw400746@hansmotion.com + 86 18649687871