Harmonic Drive Systems (Japan)

Gearboxes & Reducers Tier 2Humanoid

Japanese parent of the harmonic drive technology; HD series strain wave gears

Category: Gearboxes & Reducers
Application: Humanoid
Supply tier: Tier 2Components that go into a tier 1 assembly — gearboxes, encoders, sensors, electronics.
NDAA compliant: See noteSource lists: japan
Website: www.hds.co.jp/english

Notes

Humanoid joint gearboxes 14+ harmonic drives per Tesla Optimus robot

Alternatives in Gearboxes & Reducers

4 other vendors in this category — the second-source shortlist.

Harmonic Drive LLC (USA)NDAA

Zero-backlash strain wave gearboxes & FHA series compact actuators; 50+ years heritage

RV-series precision cycloidal reduction gears; dominant in industrial robot joints

Compact rotary gearboxes, linear actuators, precision bearings for robot joints

TwinSpin & DriveSpin cycloidal reducers; precision bearings; 2nd largest Timken business