| 摘要 |
Disclosed herein is a structure of a casing of a small stepping motor having an outer diameter of 8 mm or less, in which a plurality of yoke teeth is integrally formed on the inner surface of the casing, and the thickness of the outer wall of the casing is different from the thickness of each of the yoke teeth, thus reducing a production cost and improving a process. The casing of a small stepping motor includes: a plurality of yoke teeth integrally formed on an inner surface of the casing, wherein a thickness (t1) of an outer wall of the casing is different from a thickness (t2) of the yoke tooth.
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