Strain Wave (Harmonic) Gears
Zero-backlash strain-wave gear component sets and gearheads delivering high single-stage reduction ratios (30:1 to 160:1) for precision humanoid and robotic arm axes.
Zero-backlash strain-wave (harmonic) gearing is cut domestically at Harmonic Drive LLC's AS9100 plant in Beverly, MA (Japanese parent HDS) and Cone Drive in Traverse City, MI. High-volume independent domestic capacity remains a key industry focal point.
US Manufacturers & Suppliers
Harmonic Drive LLC
✓ NDAAUS headquarters and primary manufacturing plant (42 Dunham Ridge, Beverly, MA) for precision strain-wave (harmonic) gearing component sets, gear units, and servo actuators. Majority of products sold in the Americas are cut and assembled at the AS9100D certified Massachusetts facility (subsidiary of Tokyo-listed Harmonic Drive Systems).
Cone Drive
✓ NDAAUS gear engineering and manufacturing specialist (part of The Timken Company) producing made-in-the-USA Harmonic Solutions strain wave gearing in Traverse City, MI. Also markets high-precision cycloidal reducers (TwinSpin, DriveSpin line utilizing Timken/Spinea technology) for humanoid joints, cobots, and industrial positioning.