CubeMars RI100 KV105 Motor
CubeMars RI100 KV105 Motor
Product Description
The RI100 KV105 frameless torque motor is an inner-rotor, frameless motor from CubeMars’ RI series. As a high-precision joint motor and brushless DC motor, it is ideally suited for industrial automation and advanced robotics applications. Specifically engineered for high-performance use cases—including exoskeletons, quadruped robots, legged locomotion platforms, robotic arms, and collaborative industrial manipulators—this motor delivers exceptional performance in a compact, lightweight package.
CubeMars’ RI100 KV105 stands out with its superior electrical characteristics, reduced weight, and minimized footprint. Its width and thickness are meticulously optimized and support flexible customization, enabling seamless integration into tight or complex mechanical assemblies.
Moreover, this frameless inner-rotor motor excels in both torque delivery and motion control precision. It maintains high efficiency while providing stable, responsive power output. Combined with an optimized effective drive ratio (in direct-drive configurations) and a plug-and-play design philosophy, the motor significantly enhances system flexibility while simplifying installation, commissioning, and maintenance.
Core Specifications
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Motor Dimensions: Φ104 × 26 mm
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Hollow Shaft Diameter: 45 mm
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Motor Weight: 500 g
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Peak Torque: 4.95 Nm
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No-load Speed: 4368 rpm@48V
Product Highlights
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High Torque Density & Lightweight Design: Ideal for insertion into space-constrained robotic joints and mechanisms
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Ultra-Low Cogging Torque & Fast Response: Advanced electromagnetic optimization ensures smooth motion and rapid dynamic response, even at low speeds
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Frameless Architecture: Enables full user customization of support structures, mounting flanges, or bearing arrangements for optimal mechanical integration
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Wide Voltage Compatibility: Operates across 12 V to 48 V systems, making it adaptable to a broad range of robotic and automation platforms
Packaging Contents
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RI100 KV105 Frameless Motor ×1
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Certificate of Conformance ×1
| PRODUCT PARAMETERS | |||
| Parameter | Value | Parameter | Value |
| Specification | |||
| Application | Cobot Arm/Exoskeleton | Insulation Class | C |
| Driving Way | FOC | Insulation High-Voltage | 1000V 5mA/2s |
| Operation Ambient Temperature | -20°C~50°C | Insulation Resistance | 1000V 10MΩ |
| Winding Type | Delta | Phase | 3 |
| Pole Pairs | 14 | ||
| Electric Parameters | |||
| Rated Voltage(V) | 24/36/48 | Ke(V/krpm) | 10.47 |
| No-Load Speed(rpm) | 2184/3276/4368 | Phase To Phase Resistance(mΩ) |
126 |
| Rated Torque(Nm) | 1.76 | Phase To Phase Inductace(μH) |
366.7 |
| Rated Speed(rpm) | 1370/2100/2825 | Inertia(gcm²) | 215.5 |
| Rated Current(ADC) | 13.6 | Km(Nm/√W) | 0.3634 |
| Peak Torque(Nm) | 4.95 | Mechanical Time Constant(ms) |
0.16 |
| Peak Current(ADC) | 38.6 | Electrical Time Constant(ms) |
2.91 |
| Kv(rpm/V) | 105 | Weight(g) | 500 |
| Kt(Nm/A) | 0.129 | Maximum Torque Weight Ratio(Nm/Kg) |
9.9 |