# RobStride RS05 QDD Joint Actuator

![RobStride RS05 QDD Joint Actuator](https://parts.trymaglev.com/img/ac-robstride-rs05.webp)

Smallest RobStride integrated QDD joint (motor, 7.75:1 planetary, driver, dual 14-bit encoders) at about 191 g for small arms, grippers and robot heads.

- Maglev ID: ac-robstride-rs05
- Brand: RobStride
- MPN: RS05
- Category: actuators / Integrated Joint Actuators
- Origin: CN (maker HQ, factory not confirmed)
- Maker: Beijing Lingzu Shidai Technology (RobStride, 北京灵足时代科技) (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.40.00 (typical)
- MOQ: unknown · Lead time: unknown
- Confidence: VERIFIED

## Price
- 1+: $110 (list, 2026-10-30, https://robstride.com/products/robStride05; USD price shown on robstride.com English product page (read from the site bundle))

## Specifications
- Peak torque: 5.5 N·m
- Rated torque: 1.6-1.8 N·m @100 rpm (1.6 on product page, 1.8 in 2026-07-13 spec)
- Gear ratio: 7.75:1 planetary
- Voltage: 48 V rated (15-60 V)
- Mass: 191 g
- Interface: CAN / CAN FD, 1 Mbps

## Links
- Product: https://robstride.com/products/robStride05
- Datasheet: https://github.com/RobStride/Product_Information/blob/main/README.md
- CAD: none

## Equivalents
- CubeMars AK40-10 V3.0 KV170 Robotic Actuator (ac-cubemars-ak40-10-v3)
- Damiao DM-J3507-2EC Joint Motor (ac-damiao-dm-j3507-2ec)

## Sources
- https://robstride.com/products/robStride05 (specs + USD price (site data bundle https://robstride.com/assets/index-957329aa.js))
- https://github.com/RobStride/Product_Information/blob/main/README.md (specs + CNY catalog price ¥499 (spec dated 2026-07-13))