CubeMars RO100 KV55 Frameless Outrunner Torque Motor 48V 4Nm Rated Torque With Hall & Temp Sensors for Cobot Arm & Robotics

Overview

The CubeMars RO100 KV55 Frameless Outrunner Torque Motor is a high-performance 48V brushless DC motor designed for cobot arms, exoskeleton robots, medical devices, and aerospace applications. Featuring a KV rating of 55rpm/V and rated torque of 4Nm, it integrates Hall and temperature sensors for precise rotor position detection and real-time thermal monitoring. Its large hollow through-hole design and ultra-low cogging torque ensure smooth, adaptable, and highly efficient operation in advanced robotics and automation systems.

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Key Features

1. Ultra-Low Cogging Torque – 50% reduction compared to similar motors, ensuring exceptionally smooth low-speed operation.

2. Large Hollow Through-Hole Design – Increased diameter for versatile shaft configurations, supporting one-motor-multiple-use scenarios.

3. Built-in Hall & Temperature Sensors – Real-time temperature monitoring prevents overheating, while Hall sensors deliver accurate rotor position feedback.

4. High Efficiency & Reliability – Utilizes high-grade magnets achieving up to 92.6% efficiency, with enhanced thermal adaptability and long service life.

5. High Adaptability – Modular shaft replacement supports varied robotic joint designs and diameter requirements.

6. Robust Construction – Aluminum alloy rotor housing offers excellent impact and corrosion resistance, with customizable exterior options.

7. Streamlined Installation – Stator pin holes and magnetic pins with screws simplify assembly.

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Technical Specifications

Mechanical Parameters (Standard Version)

Electrical Parameters

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Performance Analysis

At 48V operation, the RO100 KV55 delivers stable torque up to 12Nm peak with a high efficiency curve peaking at 92.6%, maintaining low thermal rise due to optimized coil design and integrated temperature protection.

 

Manual Downloads

RO100 drawing.pdf

RO100_KV55.zip

RO100-KV55-lite.pdf

RO100-KV55-lite.zip

RO100 Test Fixture.zip

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Applications

• Collaborative robotic arms (Cobots)

• Exoskeleton robotics for rehabilitation and industrial use

• Medical robotic systems

• Aerospace actuators and control systems

• Precision automation and inspection equipment

Details

Technical drawing for CubeMars RO100 KV55 motor details standard and lite versions. Standard version has 36.2mm length, 100mm diameter, with U, V, W wire specs. Lite version is 28mm long, same 100mm diameter. Both include exact measurements for mounting and internal parts, ensuring compatibility and easy integration. Annotations offer clear assembly and usage guidance.

CubeMars RO100 KV55 motor specs: FOC drive, -20°C to 50°C operation, 21 pole pairs, 4Nm torque, 2000rpm speed, 48V voltage, 20ADC current. Standard and Lite versions with varying weights and dimensions.

Analysis Chart for RO100 KV55 Standard/Lite Version at 48VDC. Displays output power, efficiency, current, and speed across varying torque values, illustrating motor performance characteristics.

CubeMars RO100 Motor comparison: 48V, 837W, 4Nm torque, 20A current, 2000 RPM speed. Two models: with hall sensors (710g, 113.5x36.2mm) and without (525g, 108.3x28mm).

CubeMars RO Series motors unveiled: RO100 KV55, RO80 KV105, RO60 KV115. High adaptability, large hollow design.

Ultra-low cogging torque. 50% reduction for silky-smooth experience. cN·m measurement displayed.

RO100 Motor has a large hollow through-hole design, allowing flexible use and versatile applications by replacing the shaft.

CubeMars RO100 Motor: High efficiency (up to 92.6%) with high-grade magnets, ensuring stability, reliability, and extended lifespan.

RO Lite: Streamlined engineering for lightweight performance in motor design.

Built-in temperature hall sensors for real-time motor monitoring and precise control.