Miniature electric motor

摘要

In a miniature electric motor a hollow cylindrical socket (2) is formed by deep drawing process on a roof plate of a frame (1), and in this socket (2) a bearing housing (4) is tightly fit projecting outwardly and inwardly from its roof plane, and at least one bearing metal (3) is further tightly fitted therein in a manner to project from both ends of the bearing housing (4). By utilizing the draw-worked socket (2) for tightly holding the bearing metal (3), the accuracy of axis or circularity of the bearing hole is assured.