HD-20 Harmonic Gear Reducer 120:1

✔️ Maximum Reduction Strain Wave Gear for Heavy Precision Loads

The HD-20 120:1 harmonic gear reducer is intended for applications that require maximum torque output and extremely fine positioning in a compact 90mm housing. Using only the specification table, this reducer supports demanding robotic and automation workloads.

✅ Gear ratio: 120:1
✅ Rated torque at 2000 rpm: 28 Nm
✅ Limit for repeated peak torque: 61 Nm
✅ Limit for average torque: 35 Nm
✅ Limit for momentary peak torque: 95 Nm
✅ Maximum input speed: 7000 rpm
✅ Limit for average input speed: 3500 rpm
✅ Moment of inertia: 0.09 x10^4 kgm^2
✅ Backlash: ≤10 arcsec
✅ Delivery time 10 to 15 days

💡 When should a 120:1 harmonic gear reducer be selected for motion control?

A 120:1 harmonic reducer is selected when maximum torque multiplication and ultra fine positioning are required in high load precision systems.

This 120:1 version delivers maximum torque capability with stable, low-backlash motion.