page_title: Strain wave gearing
hierarchical_section_title: Strain wave gearing
caption_attribution_description: English: Harmonic Drive AG strain wave gear set consisting of wave generator bearing (top left), flexspine cup (top right) and circular spine ring (bottom).
context_page_description: Strain wave gearing also known as harmonic gearing is a type of mechanical gear system that can improve certain characteristics compared to traditional gearing systems such as helical gears or planetary gears. Harmonic Drive is the brand name of strain wave gear trademarked by the Harmonic Drive company.
  It was invented in 1957 by C.W. Musser while he was a research advisor at United Shoe Machinery and is commonly implemented in robotics, and used in aerospace as well, for gear reduction but may also be used to increase rotational speed, or for differential gearing.
context_section_description: Strain wave gearing also known as harmonic gearing is a type of mechanical gear system that can improve certain characteristics compared to traditional gearing systems such as helical gears or planetary gears. Harmonic Drive is the brand name of  strain wave gear trademarked by the Harmonic Drive company.
  It was invented in 1957 by C.W. Musser while he was a research advisor at United Shoe Machinery (USM) and is commonly implemented in robotics, and used in aerospace as well, for gear reduction but may also be used to increase rotational speed, or for differential gearing.
caption: Harmonic Drive SE strain wave gear set consisting of wave generator bearing (top left), flexspline cup (top right) and circular spline ring (bottom).
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