CubeMars RO100 KV55 Motor
CubeMars RO100 KV55 Motor
Product Description
The CubeMars RO100 KV55 Standard is a high-performance frameless outrunner torque motor engineered for demanding applications such as robotic joints, exoskeletons, collaborative robot arms, medical devices, and aerospace systems.
Operating at a rated voltage of 48V, it features an ultra-low cogging torque design and a large-diameter hollow shaft—enabling flexible integration options including through-hole wiring, direct shaft coupling, or direct connection to harmonic drives. Equipped as standard with Hall sensors and a temperature sensor, the motor delivers precise rotor position feedback and real-time thermal monitoring for enhanced control accuracy and system safety.
With a continuous torque of ~4 N·m and a peak torque of up to ~12 N·m, the RO100 KV55 delivers robust power in a compact, lightweight package (710g), making it ideal for high-dynamics robotic platforms requiring smooth motion and high reliability.
Core Specifications
- Motor Dimensions: Φ113.5 × 36.2mm
- Weight: 710g
- Peak Torque: 12 N·m
- No-Load Speed: 2550 rpm
Product Highlights
- Ultra-Low Cogging Torque: Cogging torque reduced by ~50% compared to conventional motors, ensuring exceptionally smooth low-speed operation and improved motion fidelity
- Large Hollow Bore Structure: Central aperture supports cable routing, direct shaft integration, or gearbox coupling—greatly enhancing mechanical design versatility
- Standard Hall + Temperature Sensors: Enable accurate commutation and real-time thermal protection, significantly improving system reliability and operational safety
- High Torque Output: Continuous torque of ~4 N·m and peak torque up to ~12 N·m meet the demands of high-power joint actuation and dynamic robotic tasks
- Broad Application Compatibility: Well-suited for exoskeletons, collaborative arms, medical robots, quadrupedal platforms, and lightweight automated systems
Packaging Contents
- RO100 KV55 Standard (with Hall) Frameless Outrunner Torque Motor ×1
- Certificate of Conformance ×1
| PRODUCT PARAMETERS | |||
| RO100 KV55 Standard Version | |||
| Application | Cobot Arm | Insulation Class | F |
| Driving Way | FOC | Insulation High-Voltage | 500V |
| Operation Ambient Temperature | -20℃~50℃ | Insulation Resistance | 10MΩ |
| Winding Type | Star | Cogging Torque | 55 N·mm |
| Pole Pairs | 21 | Inertia | 8700 g·cm² |
| Max Torque/Weight Ratio | 16.9 N·m/kg | Weight | 710g |
| Rotor Weight | 324g | Stator Weight | 356g |
| Hall & Temperature Sensor Wire | AWG30 silicone wire, 100±5mm, tinned 5±2mm | Three-Phase Lead-Out | Enameled wire, straight out, 100±5mm, tinned ±2mm |
| Three-Phase Wire Diameter | 4.5mm | ||
| RO100 KV55 Lite Version | |||
| Application | Cobot Arm | Insulation Class | F |
| Driving Way | FOC | Insulation High-Voltage | 500V |
| Operation Ambient Temperature | -20℃~50℃ | Insulation Resistance | 10MΩ |
| Winding Type | Star | Cogging Torque | 55 N·mm |
| Pole Pairs | 21 | Inertia | 5290 g·cm² |
| Rotor Weight | 190g | Weight | 525g |
| Max Enameled Wire Bulge Height | 7mm | Stator Weight | 335g |
| Three-Phase Wire Diameter | 4.5mm | Three-Phase Lead-Out | Enameled wire, straight out, 100±5mm, tinned ±2mm |
| Electric Parameters (Both Versions) | |||
| Rated Voltage | 48V | Ke | 18.67 V/krpm |
| No-Load Speed | 2550 rpm | Phase-to-Phase Resistance | 143 mΩ |
| Rated Torque | 4 N·m | Phase-to-Phase Inductance | 137 μH |
| Rated Speed | 2000 rpm | Km | 0.53 N·m/√W |
| Rated Current | 20 ADC | Mechanical Time Constant | 1.73 ms |
| Peak Torque | 12 N·m | Electrical Time Constant | 0.96 ms |
| Peak Current | 62 ADC | Kt | 0.2 N·m/A |
| Kv | 55 rpm/V | ||