Overview
The CubeMars RO60 KV115 Frameless Outrunner Torque Motor is a high-performance BLDC motor designed for collaborative robotic arms, exoskeleton robots, and advanced applications in medical and aerospace industries. Featuring 48V rated voltage, KV115, 0.8Nm rated torque, and 2.4Nm peak torque, it delivers precise motion control with exceptional efficiency and stability.
As part of the newly launched RO Series (Dec 2023), the RO60 integrates significant upgrades over the R series, solving joint design challenges such as limited internal space and increased torque demands. It offers large hollow through-hole adaptability, ultra-low cogging torque, and high-grade component construction for long service life.
Key Features
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Ultra-Low Cogging Torque – 15N·mm cogging torque, 50% lower than previous designs, ensuring smoother low-speed operation.
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Large Hollow Through-Hole Design – Accommodates various shaft sizes for multiple application requirements, enabling one motor for multiple setups.
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Integrated Hall & Temperature Sensors – Real-time rotor position and motor temperature monitoring for precise control and overheating protection.
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High Efficiency & Stability – Up to 92.6% motor efficiency with high-grade magnets, improving thermal adaptability, stability, and lifespan.
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Robust Aluminum Alloy Housing – Enhanced impact resistance, corrosion resistance, and customization options.
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Easy Installation – Stator with pin holes, magnetic pins, and screws simplifies assembly.
Specifications
Mechanical Parameters (Standard Version)
| Parameter | Value |
|---|---|
| Application | Cobot Arm |
| Driving Way | FOC |
| Winding Type | Star |
| Pole Pairs | 14 |
| Cogging Torque | 15 N·mm |
| Rotor Weight | 105g |
| Stator Weight | 143g |
| Weight | 248g |
| Maximum Torque Weight Ratio | 9.68Nm/kg |
| Inertia | 1161 g·cm² |
| Insulation Class | F |
| Insulation High Voltage | 500V |
| Insulation Resistance | 10MΩ |
| Ambient Temperature | -20℃ to 50℃ |
| Lead-Out | Enameled Wire Straight Out (100±5mm Tinned 5±2mm) |
| Three-Phase Wire | 3mm |
| Hall Temperature Sensor Wire | 30# AWG Silicone Wire 100±5mm Tinned 5±2mm |
Electric Parameters
| Parameter | Value |
|---|---|
| Rated Voltage | 48V |
| KV | 115 rpm/V |
| Ke | 8.28 V/krpm |
| Rated Torque | 0.8 Nm |
| Peak Torque | 2.4 Nm |
| Rated Current | 8.5 A DC |
| Peak Current | 40 A DC |
| Rated Speed | 4200 rpm |
| No-Load Speed | 5520 rpm |
| Phase-to-Phase Resistance | 300 mΩ |
| Phase-to-Phase Inductance | 395 μH |
| Kt | 0.094 Nm/A |
| Km | 0.17 Nm/√W |
| Mechanical Time Constant | 2.86 ms |
| Electrical Time Constant | 1.32 ms |
Applications
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Collaborative robotic arms (Cobot arms)
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Exoskeleton robotics
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Medical robots
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Aerospace mechanisms
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Precision automation systems
Manual Downloads
Details

Technical drawing of CubeMars RO60 KV115 motor shows standard and lite versions with dimensions, connections (L2, L1, U, V, W), and specs for assembly and compatibility.

CubeMars RO60 motor specs: CobotArm, FOC drive, -20°C to 50°C operation, star winding, 14 pole pairs. Standard version weighs 388g; Lite version weighs 267g. Rated voltage 48V, no-load speed 5520rpm.

Analysis Chart for CubeMars RO60 KV115 motor at 48VDC. Displays output power, efficiency, current, and speed against torque. Standard and Lite versions compared.

RO60 KV115 motor: 48V, 351W, 0.8Nm torque, 4200 RPM, 8.5A current, 5520 no-load RPM, 300mΩ resistance, 395μH inductance, 14 pole pairs, 248g weight, 73.8*23mm size, with hall and temperature sensors.

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

Ultra-low cogging torque motor offers 50% reduction, ensuring silky-smooth operation for enhanced performance.

CubeMars RO60 Motor has a large hollow through-hole design, allowing flexible use and versatile applications with shaft replacement.

CubeMars RO60 Motor: High efficiency, stable, reliable. High-grade magnets boost efficiency to 92.6%, enhancing stability and lifespan.

RO Lite: Streamlined engineering for lightweight performance in motors.

Built-in temperature Hall sensors for real-time motor monitoring, ensuring precise control.
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