# MyActuator RMD-FL-85-13-500 Frameless Inner-Rotor Motor

![MyActuator RMD-FL-85-13-500 Frameless Inner-Rotor Motor](https://parts.trymaglev.com/img/mo-myactuator-rmd-fl-85-13-500.webp)

85 mm inner-rotor frameless kit with 52 mm rotor bore for shoulder or hip joints driven through a harmonic or planetary reducer.

- Maglev ID: mo-myactuator-rmd-fl-85-13-500
- Brand: MyActuator
- MPN: RMD-FL-85-13-500
- Category: motors / Frameless BLDC Torque Motors
- Origin: CN (maker HQ, factory not confirmed)
- Maker: MyActuator (Suzhou Micro Actuator Technology Co., Ltd.) (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.40.00 (typical)
- MOQ: 1 · Lead time: unknown
- Confidence: VERIFIED

## Price
- 1+: $319.66 (distributor, 2026-10-30, https://www.robotshop.com/products/myactuator-rmd-fl-85-13-500-bldc-inner-rotor-frameless-motor; RobotShop SKU RBC-Mya-58)

## Specifications
- Peak torque: 3.9 Nm
- Continuous torque: 1.3 Nm rated
- Outer diameter: 85 mm stator OD
- Axial length: 25 mm (stator height per drawing)
- Voltage: 48 V
- Mass: 460 g
- Rated current: 9.4 A
- Peak current: 28.2 A
- Torque constant: 0.14 Nm/A
- Rotor bore: 52 mm
- Sensor: Hall+INC

## Links
- Product: https://www.myactuator.com/fl-85-13details
- Datasheet: https://www.myactuator.com/downloads-flseries
- CAD: none

## Sources
- https://www.myactuator.com/fl-85-13details (official spec sheet image: installation drawing and parameters)
- https://www.robotshop.com/products/myactuator-rmd-fl-85-13-500-bldc-inner-rotor-frameless-motor (price and stock (RobotShop))