Mass
0.88kg
Actuator > Joint module cp-2-1
RobStride RS-03
Joint module by RobStride Dynamics, CN
The RS-03 is a quasi-direct-drive joint module from RobStride with a 9:1 reducer and integrated drive electronics, rated 20 Nm continuous and 60 Nm peak at 380 W. It sits in the middle of a seven-model family (RS-00 to RS-06) used by builders of humanoids, quadrupeds and research arms.
Key specifications
Rated torque
20Nm
Peak torque
60Nm
Gear ratio
9:1
USD 245 at Robotics Center (US), seen 2026-10-28 — Backorder, 4-6 weeks; est. US shipping USD 66.84
Versions
| RS-00 | USD 185 at Robotics Center |
|---|---|
| RS-01 | USD 185 at Robotics Center |
| RS-02 | USD 195 at Robotics Center |
| RS-03 | USD 245 at Robotics Center; the model described here |
| RS-04 | USD 295 at Robotics Center |
| RS-05 | USD 155 at Robotics Center |
| RS-06 | USD 255 at Robotics Center |
All attributes
| IP rating | IP52 |
|---|---|
| Segment | Research, Education, Hobby |
Looked for but not confirmed on any fetched page: Interface, Voltage, Reducer type, Release year.
Editor's notes
Classified as a joint module: integrated driver, planetary reducer and CAN bus (industrial bus per the taxonomy rule). Unverified (free text): official-product-page. Robotics Center's spec table leaves voltage, communication interface, encoder and reducer type blank, so they are not recorded here (Group F recorded CAN / 48 V / planetary from Pakronics and AIFITLAB listings — not re-fetched in this pass). Mass conflict on the page: "Weight 880 g" vs "Net weight 1.5 kg" (the latter is probably shipping weight); 880 g recorded. Dimensions 106 x 106 x 56 mm. The brand page's variant prices show "$" without a currency code; USD assumed from the US store.
Sources
- Robotics Center RS-03 product page — accessed 2026-10-28 (specs, facts, price)
- Robotics Center RobStride brand page — accessed 2026-10-28 (variants, price, manufacturer)
Facts on this page come only from the pages listed above, read on the dates shown. Prices are observations, not offers to sell; check the seller before buying.