What is frameless motor?

Frameless motor is a special type of motor, which is characterized by omitting traditional components such as motor housing, bearings, and shafts, and only consisting of rotor and stator. The rotor of frameless motors is usually composed of a rotating steel ring component with permanent magnets, which is directly installed on the machine shaft; The stator is an external component composed of steel laminations and copper windings, generating electromagnetic force. This design makes frameless motors have advantages such as small size, light weight, and fast dynamic response, making them particularly suitable for robot joints and other precision equipment that require high-precision control. ‌

Frameless motors have a wide range of applications, especially in the joint drive of humanoid robots. The requirements for motors in humanoid robots include light weight, small size, high torque, high dynamic response, and high reliability. Due to its characteristics, frameless motors can well meet these requirements and become one of the core components of humanoid robot joint modules. In addition, frameless motors are widely used in industrial robots and other precision mechanical equipment, demonstrating their enormous potential in improving equipment performance.