The inner holes of hollow shaft motors are mainly used for wiring, light transmission, or through other media such as air. This design greatly optimizes mechanical design, facilitates wiring, and saves design space and production costs. Hollow shaft motors have a wide range of applications, including water pumps, ventilation equipment, booster equipment, small hydro generators, thrusters, etc. Hollow shaft motors have the advantage such as reduction in volume, weight and noise, multi-purpose, cost reduction, simple manufacturing and convenient using.