Lightweight 52mm High-Torque Joint Motor CRA-RI40-52-PRO for Robotics

This joint motor integrates an ultra-thin harmonic reducer, a high-efficiency frameless torque motor, and a multi-turn absolute encoder that ensures precise positioning and movement tracking, even after power-down.

Built with a focus on durability and reliability, the CRA-RI40-52-PRO offers robust performance with low noise, low cogging torque, and high torque density.

The sealed, hollow-shaft design also enhances its resistance to dust, moisture, and vibrations, supporting use in challenging environments.

This joint motor is especially suited for humanoid limbs, lightweight manipulators, mobile robots, and other space-constrained robotic systems where quality, safety standards, and technical performance cannot be compromised.

Compact 52mm design with 0.3kg weight for ultra-lightweight builds

High-precision multi-turn absolute encoder for real-time position memory

Frameless brushless motor + harmonic reducer for smooth torque delivery

Quiet operation with low cogging and minimal heat generation

Sealed hollow shaft structure with enhanced dust and water resistance

Ideal for humanoid joints, robotic arms, and educational or research platforms