• CubeMars RO80 KV105 Frameless Outrunner Torque Motor 48V 1.3Nm 4Nm 3600rpm for Cobot Arm Robotics
  • CubeMars RO80 KV105 frameless outrunner torque motor: 48V, 1.3-4Nm, 3600rpm, suitable for cobot arm robotics.
  • The CubeMars RO80 KV105 is a high-torque, 48V outrunner motor designed for robotics, offering 1.3-4Nm torque and 3600rpm speed.
  • CubeMars RO80 KV105 frameless outrunner torque motor, 48V, 1.3-4Nm, 3600rpm, for cobot arm robotics, made in China.
  • CubeMars RO80 KV105 Frameless Outrunner Torque Motor 48V 1.3Nm 4Nm 3600rpm for Cobot Arm Robotics
  • The CubeMars RO80 KV105 is a 48V frameless outrunner torque motor with 1.3-4Nm torque and 3600rpm speed, designed for robotic applications.
  • The CubeMars RO80 KV105 is a 48V frameless outrunner torque motor with 1.3-4Nm torque and 3600rpm speed, designed for cobot arm robotics.
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CubeMars RO80 KV105 Frameless Outrunner Torque Motor 48V 1.3Nm 4Nm 3600rpm for Cobot Arm Robotics

CubeMars RO80 KV105 Frameless Outrunner Torque Motor 48V 1.3Nm 4Nm 3600rpm for Cobot Arm Robotics

CubeMars

$169.00 USD
$169.00 USD
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Overview

The CubeMars RO80 KV105 Frameless Outrunner Torque Motor is part of the newly upgraded RO Series, launched in December 2023 after extensive market research and engineering optimization. It is purpose-built for collaborative robotic arms, exoskeleton robots, medical devices, and aerospace applications.
Compared with the previous R Series, the RO Series addresses key challenges in robot joint design — enabling compact integration while delivering higher torque output.

Key upgrades include 50% lower cogging torque, a large hollow through-hole design for flexible integration, integrated temperature and Hall sensors for real-time monitoring and precision control, and an aluminum alloy rotor housing for enhanced durability and corrosion resistance. The RO80 KV105 is available in Standard and Lite versions to suit different weight and inertia requirements.

Key Features

  • Ultra-Low Cogging Torque – 50% reduction compared to similar products for ultra-smooth low-speed operation.

  • Large Hollow Through-Hole – Enables cable routing, sensor integration, or other mechanical components; adaptable via shaft replacement.

  • Built-In Temperature & Hall Sensors – Real-time temperature protection and accurate rotor position feedback for precise FOC control.

  • Aluminum Alloy Rotor Housing – Strong, corrosion-resistant, lightweight, and customizable appearance.

  • Easy Installation – Stator with locating pin holes and magnetic pins for quick assembly.

  • High Efficiency – Uses high-grade magnets, achieving up to 92.6% efficiency with excellent thermal adaptability.

Technical Specifications

1. Mechanical Parameters

Parameter RO80 KV105 Standard Version RO80 KV105 Lite Version
Application Cobot Arm Cobot Arm
Driving Way FOC FOC
Operating Ambient Temperature -20℃ ~ 50℃ -20℃ ~ 50℃
Winding Type Delta Delta
Pole Pairs 21 21
Cogging Torque 24 N·mm 24 N·mm
Inertia 2612 g·cm² 1600 g·cm²
Maximum Torque-to-Weight Ratio 11.36 Nm/kg —
Rotor Weight 148 g 85 g
Stator Weight 204 g 180 g
Total Weight 352 g 265 g
Three-Phase Wire Diameter 3.5 mm 3.5 mm
Lead-Out Type Enameled Wire Straight Out 100±5 mm, Tinned 5±2 mm Enameled Wire Straight Out 100±5 mm, Tinned 5±2 mm
Hall Temperature Sensor Wire 30# AWG Silicone, 100±5 mm, Tinned 5±2 mm —
Insulation Class F F
Insulation High-Voltage 500 V 500 V
Insulation Resistance 10 MΩ 10 MΩ

2. Electrical Parameters (Applicable to Both Versions)

Parameter Value
Rated Voltage 48 V
No-Load Speed 5040 rpm
Rated Torque 1.3 Nm
Peak Torque 4 Nm
Rated Speed 3600 rpm
Rated Current 15 A DC
Peak Current 50 A DC
Phase-to-Phase Resistance 120 mΩ
Phase-to-Phase Inductance 103 μH
Back-EMF Constant (Ke) 9.07 V/krpm
Torque Constant (Kt) 0.087 Nm/A
Motor Constant (Km) 0.25 Nm/√W
Kv 105 rpm/V
Mechanical Time Constant 2.95 ms
Electrical Time Constant 0.86 ms

Performance Advantages

  • Up to 92.6% motor efficiency for long-term continuous operation.

  • Compact integration for space-constrained robotic joints.

  • Lightweight Lite Version for end-effector and mobile applications.

  • FOC control compatibility ensures high-precision motion and torque control.

Applications

  • Collaborative robotic arms (Cobot)

  • Exoskeleton robots

  • Medical robotics

  • Aerospace gimbal and actuation systems

  • Research and industrial automation

Manual Downloads

RO80 drawing.pdf


RO80_KV105.zip


RO80-KV105-lite.pdf


RO80-KV105-lite.zip


RO80 Test Fixture.zip

 

Details

CubeMars RO80 Motor, Technical drawing details CubeMars RO80 KV105 motor versions: standard (26.4mm x 82.6mm) and lite (17.7mm x 88.6mm), with pinouts and phase connections. Ensures compatibility and proper assembly.

Technical drawing of CubeMars RO80 KV105 motor in standard and lite versions. Standard version measures 26.4mm in length and 82.6mm in outer diameter, with detailed pinouts including L2, L1, HU, HV, H, W, GND, VCC. The lite version is 17.7mm long with an 88.6mm outer diameter. Both versions support U, V, W phase connections. Accurate dimensions ensure compatibility across applications. Diagrams emphasize key specs for proper assembly and integration.

CubeMars RO80 motor: FOC drive, 48V, 5040rpm, 4Nm torque, 21 pole pairs, delta winding, -20°C to 50°C. Standard 352g, Lite 265g.

CubeMars RO80 motor specs: FOC drive, -20°C to 50°C operation, delta winding, 21 pole pairs. Standard version weighs 352g; Lite version weighs 265g. Rated voltage 48V, no-load speed 5040rpm, peak torque 4Nm.

CubeMars RO80 Motor, Chart shows CubeMars RO80 KV105 motor performance at 48VDC, including power, efficiency, current, and speed vs. torque.

Analysis Chart for CubeMars RO80 KV105 Motor at 48VDC. Displays output power, efficiency, current, and speed against torque. Data trends highlight motor performance characteristics effectively.

CubeMars RO80 Motor, The RO80 KV105 motor delivers 490W power, 1.3Nm torque, and 3600 RPM speed. The standard version includes a hall sensor, while the Lite does not. Both operate at 48V and 15A.

RO80 motor comparison: KV105 models offer 490W power, 1.3Nm torque, 3600 RPM speed. Standard version includes hall sensor; Lite version does not. Both have 48V voltage and 15A current.

CubeMars RO80 Motor, CubeMars RO Series motors offer high adaptability and a large hollow design, with models RO100 KV55, RO60 KV115, and RO80 KV105.

CubeMars RO Series motors, featuring high adaptability and large hollow design. Models include RO100 KV55, RO60 KV115, and RO80 KV105.

CubeMars RO80 Motor, Ultra-low cogging torque with 50% reduction for smooth operation. AT6GCN model, measured in cN·m.

Ultra-low cogging torque. 50% reduction for silky-smooth experience. AT6GCN model, cN·m measurement.

The CubeMars RO80 Motor features a large hollow through-hole design, allowing flexible use and shaft replacement for multiple applications.

CubeMars RO80 Motor has a large hollow through-hole design, allowing flexible usage. It supports shaft replacement to meet various needs, enabling one motor for multiple uses.

The CubeMars RO80 Motor delivers high efficiency, stability, and reliability with premium magnets for peak performance and extended lifespan.

CubeMars RO80 Motor offers high efficiency, stability, and reliability with high-grade magnets for peak performance and longer lifespan.

CubeMars RO80 Motor, RO Lite: Streamlined engineering for lightweight performance in motor design.

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

CubeMars RO80 Motor, Built-in temperature hall sensors for real-time motor monitoring, ensuring precise control.

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

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