LINEAR MOTOR

摘要

Provided is a linear motor comprising: a cylindrical yoke; a rod that penetrates the yoke in the yoke axial direction; a plurality of teeth that protrude from the inner circumferential surface of the yoke and that are disposed with equidistant intervals therebetween in the yoke axial direction; slots formed between adjacent teeth; a plurality of coils disposed in the slots; and permanent magnets that are held side by side in the rod along the yoke axial direction. The yoke is configured so that a standard number of slots are repeatedly disposed, the standard number determined in accordance with the number of phases of alternating current supplied to the coils. An N-th tooth from the yoke end, such tooth determined by formula (1), has a width adjusting part for adjusting tooth width.