| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor for making a rotor core and a field magnet fix more firmly.SOLUTION: On a position where a ring magnet 33 as a field magnet, and first and second rotor cores 31 and 32 overlap in an axial direction, a plurality of through-holes 40 are formed on a concentric circle. The first and second rotor cores 31 and 32 and the ring magnet 33 are fixed by caulking a rivet 41 which is inserted in the through-holes 40. |
