Unitree joint motors
Unitree's own brushless joint motors, each with two position sensors and a hollow shaft so wires run through the joint.
In-houseMade by the robot's own company for its robots. Not sold to anyone else.
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Why this price
Unitree makes the G1's joint motors itself and does not sell them, so this is not their price. It is the price range of comparable joint actuators a builder can buy, from about US$120 for a 5 Nm wrist-size unit to about US$900 for a 120 Nm leg-size unit. A full G1 uses 23 to 43 of these, so buying comparables for one robot would cost several thousand dollars, far more than Unitree likely pays to make its own.
Our own figure, not a price from any company.
Based on: CubeMars, AK Series Robotic Actuator catalogue (cubemars.com)
How to get it
In-houseIt cannot be bought on its own. To get one, you would buy a robot that has it, from the list below. Comparable parts you can buy, with their prices, are listed further down.
- Unitree Robotics STAR Market IPO prospectus, hearing draft, May 2026dataclouds.cninfo.com.cn
Comparable parts you can buyNot the confirmed part
4 products, scroll sideways
Products on public sale that do the same job, with why each is similar and where to buy it. None is confirmed to be the part inside these robots.
A fuller write-up of this part, with its numbers, price and trade-offs, has not been written yet. How we verify
