Since the caulking dowel portion 150 is arranged on the inner side in the radial direction of the stator core 31, the electromagnetic steel sheets 231A constituting the laminated steel sheet 231 are easily opened in the axial direction in the teeth 31b located on the outer side in the radial direction. Thus, it is preferable to perform the processing in a state where an outer region in the radial direction is compressed in the axial direction using a jig to suppress the opening when caulking the plurality of electromagnetic steel sheets 231A to produce the laminated steel sheet 231 and when impregnating and bonding the laminated steel sheet 231 in which the plurality of electromagnetic steel sheets 231A are laminated in the axial direction.

As illustrated in FIG. 2, the caulking dowel portion 160 is provided in the yoke cylindrical portion 22a of the yoke 22. The six caulking dowel portions 160 are provided at intervals of 60° in the circumferential direction. The caulking dowel portion 160 is provided at a position overlapping the yoke protruding portion 22b in the radial direction. Since the caulking dowel portion 160 and the yoke protruding portion 22b overlap each other in the radial direction, it is possible to suppress a decrease in strength of the caulking dowel portion 160 during pressing.

FIG. 7 is an enlarged plan view of the yoke 22 and the rotor outer edge 26 around the caulking dowel portion 160 as viewed from below.