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Harmonic Drive® Strain Wave Gear – Zero Backlash

February 11, 2025

Harmonic Drive® strain wave gearing utilizes a unique operating principle which is based upon the elastic mechanics of metals. The greatest benefits are the zero-backlash characteristics and the weight and space savings compared to other gears because our gear mechanism consists of only three basic parts.

They are the: Wave Generator, Flexspline and Circular Spline. This simple three element construction combined with the unique operating principle allows extremely high reduction ratio in a very compact and lightweight package. Neither the size nor weight of the gear vary with the reduction ratio. The high performance attributes of this gearing technology including zero backlash, high torque, compact size, excellent positional accuracy and repeatability are all a direct result of the unique operating principle.

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Harmonic Drive® Strain Wave Gear - Zero Backlash

The new Harmonic Drive® HPF Series has quickly become a go-to choice for engineers requiring high-torque solutions in compact spaces. Its precision gearing, reliability, and versatility make it ideal for robotics, automation, and other high-performance applications that require exact motion control.

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