Definition and Main Applications of Long-Shaft Electric Motors

A long shaft motor is an electric motor where the shaft length is significantly greater than the diameter, typically with a length-to-diameter ratio of 3 times or more. It features a compact structure, high power, high efficiency, and low noise, making it suitable for applications with high load inertia, low rotational speeds, and high torque requirements [3]. The long shaft motor is primarily composed of components such as the shaft, stator, rotor, rolling bearings, end caps, and fan housing, among which the stator is made up of an iron core and coil, and the rotor consists of the shaft and armature iron core [4].