---
title: "LHS series (Harmonic Drive strain-wave reducer) by Leaderdrive (Suzhou Leader Harmonic Drive): specs, torque and price"
description: "Harmonic / Precision actuator from Leaderdrive (Suzhou Leader Harmonic Drive) (China). Peak torque n/a, rated n/a, weight n/a, torque density n/a, price quote only."
canonical: https://getactuators.com/actuators/leaderdrive-lhs
last-updated: 2026-09-26T20:29:50.000Z
---
# LHS series (Harmonic Drive strain-wave reducer) by Leaderdrive (Suzhou Leader Harmonic Drive)

> Harmonic / Precision actuator from Leaderdrive (Suzhou Leader Harmonic Drive) (China). Peak torque n/a, rated n/a, weight n/a, torque density n/a, price quote only.

## Specifications

| Spec | Value |
| --- | --- |
| Category | Harmonic / Precision |
| Peak torque | n/a |
| Rated torque | n/a |
| Max speed | n/a |
| Gear ratio | 50:1-160:1 |
| Weight | n/a |
| Torque density | n/a |
| Price | quote only |
| Price per Nm | n/a |
| Backdrivable | no |
| Backlash | 0 arcmin |
| Voltage | n/a |
| Peak current | n/a |
| Communication | n/a |
| Control modes | n/a |
| Encoder | n/a |
| Integrated driver | no |
| Availability | in production |
| Data status | unverified |

## Use cases

- robot arm
- industrial robot joint
- cobot joint

## Notes

Strain-wave (harmonic) gear reducer component, a Harmonic Drive alternative used to build precision robot-arm joints, not a motorized actuator, so motor/electrical/comms fields are null. Sizes about 14/17/20/25/32/40/50 with reduction ratios 50/80/100/120/160:1. Rated output torque spans roughly 3.8 N·m (smallest size) up to about 921 N·m (largest size) with allowable peak torque above 4,000 N·m on large sizes, per distributor listings; specific per-size/ratio values are not confirmed from a primary Leaderdrive datasheet, so left null. Marketed as zero-backlash (recorded 0); transmission accuracy / lost motion typically about 10 arc-sec but not confirmed here. Quote-only pricing.

## Sources

- <https://www.gigager.net/showroom/leaderdrive-lhs-i-series-harmonic-drive-speed-reducer-for-high-precision.html>
- <https://www.made-in-china.com/showroom/leaderdriveharmonic/product-detailVKinUBxDhXkI/China-Leaderdrive-Lhs-I-Series-Harmonic-Drive-Speed-Reducer-for-High-Precision.html>
- <https://www.directindustry.com/prod/leader-harmonious-drive-systems-co-ltd/product-245080-2757791.html>

## Similar Harmonic / Precision actuators

- [LPA-20 (Low Profile Rotary Actuator) (Harmonic Drive LLC)](https://getactuators.com/actuators/harmonic-drive-lpa-20): 40.7 Nm/kg
- [FHA-14C-100 (FHA-C Mini) (Harmonic Drive LLC)](https://getactuators.com/actuators/harmonic-drive-fha-14c-100): 17 Nm/kg
- [SHA-CG series (SHA-CG Hollow Shaft Actuator) (Harmonic Drive LLC)](https://getactuators.com/actuators/harmonic-drive-sha-cg): n/a
- [CHA series (Hollow Shaft Servo Actuator) (Harmonic Drive (Harmonic Drive SE / LLC))](https://getactuators.com/actuators/harmonic-drive-cha-series): n/a
- [LHD series (hollow-shaft harmonic reducer) (Leaderdrive (Suzhou Leader Harmonic Drive))](https://getactuators.com/actuators/leaderdrive-lhd): n/a

## Machine-readable

- JSON: https://getactuators.com/api/v1/actuators/leaderdrive-lhs
- Catalog index for agents: https://getactuators.com/llms.txt