Abstract: the stepper motor can play a role in practical application are all depend on its constituent parts, and three parts, respectively, to make the most of the stator, rotor, iron core, the three parts work together to coordinate together complete the related features of the machine. This article is to introduce the stepping motor of the three important components. A, stator, the stator is one of the architecture of the stepper motor is very important, its form and structure and winding induction motor electronic basic similar. Second, the stepper motor rotor critical components include the rotor, the rotor comes in two forms, respectively is non-salient pole type and salient pole, non-salient pole rotor iron core is made of whole piece of combined steel forging, surface is a circle, the air gap is relatively uniform, and the salient pole air gap is not uniform. Three, iron core and stepper motor one of very important components, it is made up of a silicon steel sheet pile, when motor and stable operation, the primary magnetic flux in the core of the rotor is changeless, since this will not cause hysteresis loss and eddy current. The above content is of vital importance to the introduces a stepper motor of several components, people at the time of its application to pay maintenance, to ensure its long-term use and good use effect. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone: