Question

What is a hollow shaft stepper motor? What is the difference between a hollow motor and a normal motor?

Answer 1

Hollow shaft stepper motors

Its inner hole is mainly used for routing, light transmission or through other media such as air, which greatly optimizes mechanical design, facilitates wiring and saves design space and production costs. 

No precision requirement means that the dimensional accuracy of the hollow shaft or inner hole of the stepper motor is not high, and the inner hole is mainly used for routing, light transmission or other media such as air.

The hollow shaft is a kind of shaft that can be used on the motor, and this kind of motor is called a hollow shaft motor. This kind of motor has the advantages of small size, light weight, high work efficiency and easy maintenance, and the use of high-strength materials is also very simple and convenient to install.

The characteristics of the hollow shaft stepper motor are: the motor shaft is a hollow metal tube, and an impeller is installed on the inner wall of the hollow metal tube. The impeller is fixed to the bearing on the inner wall of the tube shaft by welding and other methods.

Answer 2

The design of the hollow shaft stepper motor greatly optimizes the mechanical design, facilitates wiring and saves design space and production costs.

Hollow shaft stepper motors with precision requirements have high requirements for the accuracy of hollow shaft or its inner hole aperture and thread, mainly because most of such hollow shaft stepper motors are customized to meet the needs of using third-party trapezoidal lead screws or ball screws. 

Such hollow shafts require higher accuracy in bore diameters and threads than ordinary through-screw stepper motors.