CubeMars RI60 KV120 Motor
CubeMars RI60 KV120 Motor
Product Description
The RI60 KV120 frameless motor is an inner-rotor frameless motor from CubeMars' RI series. Through optimized electromagnetic design, it achieves high slot fill ratio and delivers strong power output. With no housing or end caps—only the core components (stator and rotor) included—its volume is reduced by over 30% compared to enclosed motors of similar power. This compact, embeddable design is ideal for space-constrained applications such as robotic arm joints and precision rotating platforms.
The rotor can be directly and rigidly coupled to the load (e.g., shaft or turntable), eliminating the need for intermediate transmission components like gears or belts. This avoids transmission losses and precision degradation, achieving over 95% power transmission efficiency while reducing mechanical wear and maintenance requirements.
The stator features a modular design, allowing customization of mounting dimensions and fixation methods to suit specific equipment needs. The rotor is compatible with various load shaft diameters, enabling quick integration into diverse drivetrain systems without additional adapters.
An increased rotor height by 2mm facilitates precise alignment with Hall sensors, enabling accurate position feedback and control when equipped with optional Hall sensors.
Core Specifications
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Motor Dimensions: Φ60*23mm
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Hollow Shaft Diameter: 30mm
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Motor Weight: 155.9g
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Peak Torque: 1.63Nm
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No-load Speed: 5064rpm@48V
Product Highlights
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Lightweight Design: Weighs only 155.9g with compact dimensions of Φ60×23mm, ideal for joints or confined installation spaces
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Low Cogging Torque & High Responsiveness: Optimized stator structure and winding configuration significantly reduce cogging torque, ensuring smoother and more responsive operation
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High Structural Integration Flexibility: Frameless design (stator and rotor only) allows users to customize support structures, gear couplings, or flange connections for seamless system integration
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Broad System Compatibility: Supports multiple voltage systems (24V / 36V / 48V), suitable for a wide range of applications including robots, exoskeletons, and mobile platforms
Packaging Contents
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RI60 KV120 Frameless Motor x1
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Certificate of Conformance x1
| PRODUCT PARAMETERS | |||
| Application | Cobot Arm/Exoskeleton | Insulation Class | C |
| Driving Way | FOC | Insulation High-Voltage | 500V 5mA/2s |
| Operation Ambient Temperature | -20℃~50℃ | Insulation Resistance | 500V 10MΩ |
| Winding Type | Delta | Phase | 3 |
| Pole Pairs | 14 | ||
| Electric Parameters | |||
| Rated Voltage(V) | 24/36/48 | Ke(V/krpm) | 9.03 |
| No-Load Speed(rpm) | 2532/3798/5064 | Phase To Phase Resistance(mΩ) |
900 |
| Rated Torque(Nm) | 0.57 | Phase To Phase Inductace(μH) |
877.5 |
| Rated Speed(rpm) | 1440/2320/3190 | Inertia(gcm²) | 33.05 |
| Rated Current(ADC) | 5.6 | Km(Nm/√W) | 0.1054 |
| Peak Torque(Nm) | 1.63 | Mechanical Time Constant(ms) |
0.3 |
| Peak Current(ADC) | 16.8 | Electrical Time Constant(ms) |
0.98 |
| Kv(rpm/V) | 120 | Weight(g) | 155.9 |
| Kt(Nm/A) | 0.100 | Maximum Torque Weight Ratio(Nm/Kg) |
10.46 |
| Connector | |||
| U | Black+18#Silicone Wire | Hv | Green+30#Silicone Wire |
| V | Yellow+18#Silicone Wire | Hw | Yellow+30#Silicone Wire |
| W | Red+18#Silicone Wire | VCC GND | Red+30#Silicone Wire Black+30#Silicone Wire |
| Hu | Blue+30#Silicone Wire | Correspondence | Hu-U Hv-V Hw-W |