Frameless Outrunner Torque Motor / RO50 KV108 Lite

RO50 KV108 Lite Frameless Outrunner Torque Motor

A minimalist Lite frameless outrunner torque motor with ultra-low cogging and a large hollow-through structure for smooth, seamless embedded integration.

0.9 Nm

Peak Torque

0.3 Nm

Rated Torque

2600 rpm

No-load Speed

108

KV

Product Overview

Smooth, ultralight torque

The CubeMars RO50 KV108 Lite is a lightweight frameless outrunner torque motor built for seamless embedded integration. Running on 24 V it delivers about 0.3 Nm continuous and up to 0.9 Nm peak torque from just 105 g.

A minimalist Lite design keeps weight to a minimum, while ultra-low cogging gives smooth low-speed operation. A large hollow-through structure simplifies cable management, and an open thermal design supports reliable continuous running.

Features & Benefits

Smooth, ultralight torque

A minimalist frameless outrunner for embedded, weight-critical integration.

Ultra-Low Cogging

Smooth low-speed motion and better fidelity.

Large Hollow Bore

Flexible cable management or shaft coupling.

Lite and Ultralight

A minimalist design at just 105 g.

Smooth Low-Speed

Optimised electromagnetics for fine control.

Open Thermal Design

Improved continuous-operation reliability.

Frameless

Seamless embedded integration.

Technical Specifications

RO50 KV108 Lite Specifications

Verified CubeMars manufacturer specifications for the RO50 KV108 Lite.

Peak torque0.9 Nm
Rated torque0.3 Nm
No-load speed2600 rpm
Rated speed2100 rpm
KV108 rpm/V
Torque constant (Kt)0.088 Nm/A
Back-EMF (Ke)9.2 V/krpm
Rated voltage24 V
Rated power66 W
Rated current3.4 A
Peak current10.2 A
Phase-to-phase resistance1035 mOhm
Phase-to-phase inductance460 uH
Pole pairs14
Cogging torque10 mNm
Torque density8.57 Nm/kg
Winding typeStar
SensorsNone (Lite version)
Insulation classF
Motor dimensionsD61.7 x 14.5 mm
Weight105 g
Operating temperature-20 to 50 C
Drive methodFOC
Applications

Where the RO50 KV108 Lite works

Built for smooth, reliable direct-drive joints.

Cobot Arms

Smooth, low-cogging joint actuation.

Exoskeletons

Powerful, compact assistive joints.

Quadruped Robots

High-dynamics leg actuation.

Medical Robots

Precise, quiet motion.

Why Choose This Product

Why the RO50 KV108 Lite

Smooth

Ultra-low cogging torque.

Flexible

A large hollow bore and swappable shaft.

Ultralight

A minimalist Lite design.

Support

Robomatek engineering assistance included.

Ready to integrate the RO50 KV108 Lite?

Talk to our robotics specialists for availability, lead time, and integration support.