CubeMars RI75-PH KV70 Potting Frameless Inrunner Torque Motor 48V 1.2Nm 2365RPM with Hall Sensors for Robotic Joints

Overview

The CubeMars RI75-PH KV70 is a high-performance 48V potting frameless inrunner torque motor, designed for robotic joints, collaborative robots, quadruped robots, and other precision automation applications. As part of the RI-PH series, this brushless DC motor delivers high torque density, temperature resilience, and compact integration.

Engineered with Hall sensors and temperature sensing, the RI75-PH enables accurate angle and thermal control, optimizing both position feedback and motor protection during high-load operation. The electromagnetic design is precisely crafted to deliver up to 25% higher torque and power density compared to previous generations.

Key structural innovations include a potting-filled stator for improved heat dissipation and mechanical protection, and a lightweight yoke design that's over 30% thinner while maintaining magnetic density. This makes it especially suitable for compact installations where space and performance are equally critical.

The motor exhibits stable output, maintaining high efficiency across torque ranges, and offers excellent performance retention even at winding temperatures above 150°C, thanks to advanced thermal-resistant materials and potting technology.

📐 Key Specifications：

⚙️ Features：

• ✅ Frameless & Compact: Enables flexible integration into robotic arms and compact devices.

• ✅ Potting Design: Enhances mechanical robustness and high-temperature performance.

• ✅ Integrated Hall Sensors: Provides precise angle detection for smoother control.

• ✅ High Fill Factor: Increases electromagnetic efficiency and stability.

• ✅ Thermal Resilience: Operates reliably even when winding temperature exceeds 150°C.

• ✅ Optimized Yoke Design: 30% thinner core yoke reduces motor volume while preserving magnetic strength.

• ✅ Stable Efficiency: Consistently high power output across various torque ranges.

🧪 Applications：

• Robotic Joints and Arms

• Exoskeleton Systems

• Industrial Collaborative Robots (Cobots)

• Quadruped Robots

• Embedded Mechatronics Systems

Details

CubeMars RI75 Motor dimensions: Ø70±0.015, Ø51.1±0.05, Ø42±0.03, Ø49.93. Features three-phase wire output pad and 3-hall sensor.

CubeMars RI75 Motor: 348g, 48V, 1.2 N·m torque, 3.8 N·m peak, 2365 RPM max speed, 7.28A current, 24.2A peak, 0.143 N·m/A torque constant, includes wiring instructions.

Analytical Graph of Motor Operation for CubeMars RI75-PH KV70@48VDC. Displays output power, efficiency, current, and speed against torque in N.m. Data for informational purposes only.

CubeMars RI75 Motor: 48V, 297W, 1.2Nm torque, 7.28A current, 2365 RPM speed, 3.8Nm peak torque, 24.2A peak current, 3360 no-load RPM, 495 mΩ resistance, 673 μH inductance, 14 pole pairs, 348g weight, Φ70x31.8mm size.

Compact Design, Powerful Performance. RI-PH Series Frameless Inrunner Torque Motor. Two metallic components displayed against a dark background.

Lightweight design, highly compatible. Core yoke 30% thinner, fits compact installations in embedded devices and collaborative robots.

Potting technology enhances cooling, excelling below 85°C and maintaining efficiency above 150°C. Torque remains stable up to 120°C.

Superior design enhances performance with 25% increase in torque and power density.

CubeMars RI75 Motor delivers stable, efficient power across torque ranges for lasting performance.

CubeMars RI75 Motor integrates Hall and temperature sensors for precise angle and temperature control, enhancing flexibility and performance.