---
title: "M107 Joint Motor by Unitree Robotics: specs, torque and price"
description: "Cycloidal / Premium actuator from Unitree Robotics (China). Peak torque 360 Nm, rated n/a, weight 1900 g, torque density 189.5 Nm/kg, price quote only."
canonical: https://getactuators.com/actuators/unitree-m107
last-updated: 2026-09-26T20:29:50.000Z
---
# M107 Joint Motor by Unitree Robotics

> Cycloidal / Premium actuator from Unitree Robotics (China). Peak torque 360 Nm, rated n/a, weight 1900 g, torque density 189.5 Nm/kg, price quote only.

## Specifications

| Spec | Value |
| --- | --- |
| Category | Cycloidal / Premium |
| Peak torque | 360 Nm |
| Rated torque | n/a |
| Max speed | n/a |
| Gear ratio | n/a |
| Weight | 1900 g |
| Torque density | 189.5 Nm/kg |
| Price | quote only |
| Price per Nm | n/a |
| Backdrivable | yes |
| Backlash | n/a |
| Voltage | n/a |
| Peak current | n/a |
| Communication | n/a |
| Control modes | position, velocity, torque |
| Encoder | dual encoder (position + velocity) |
| Integrated driver | yes |
| Availability | in production |
| Data status | unverified |

## Use cases

- humanoid joint
- quadruped leg
- heavy arm

## Notes

High-torque internal-rotor PMSM joint used across the Unitree H1 humanoid; the same M107 unit is deployed at different gear stages for different joints - Unitree quotes 360 N.m (knee), 220 N.m (hip), 75 N.m (arm), 45 N.m (ankle). Peak torque here uses the 360 N.m knee figure. 107x74mm, hollow shaft for cable routing, industrial crossed-roller output bearing. Manufacturer states 189 N.m/kg torque density; weight\_g (~1.9 kg) is INFERRED from 360 N.m / 189 (N.m/kg) and is not a directly published value, so verified is false. Gear ratio, voltage, comm bus and price are not published for the bare motor (sold as part of H1); left null.

## Sources

- <https://www.unitree.com/h1/>
- <https://top3dshop.com/product/unitree-robotics-h1-2-humanoid-robot>

## Similar Cycloidal / Premium actuators

- [RV-42N (RV-N cycloidal reducer) (Nabtesco)](https://getactuators.com/actuators/nabtesco-rv-42n): 327 Nm/kg
- [DM-J8009-2EC (DAMIAO (DMBots))](https://getactuators.com/actuators/damiao-dm-j8009-2ec): 44.6 Nm/kg
- [SCA QDD-Lite-NE30-36 (INNFOS (Mintasca))](https://getactuators.com/actuators/innfos-sca-qdd-lite-ne30-36): 43.1 Nm/kg
- [DM-J10010-2EC (DAMIAO (DMBots))](https://getactuators.com/actuators/damiao-dm-j10010-2ec): n/a
- [GIM8115-36 (SteadyWin)](https://getactuators.com/actuators/steadywin-gim8115-36): n/a

## Machine-readable

- JSON: https://getactuators.com/api/v1/actuators/unitree-m107
- Catalog index for agents: https://getactuators.com/llms.txt