In 1955 C. Walton Musser invented the strain wave gear.  His precision reducer design includes only 3 parts, yet offers Zero Backlash, High Accuracy and High Torque to Weight Ratio and together with the USM Corporation perfected the mechanics of the strain wave gear, and commercialized it in 1960 forming the Harmonic Drive division of … Continue reading C. Walton Musser. The Inventor of Strain Wave Gearing →