| 摘要 |
PURPOSE:To facilitate the positioning of a rotor case and a rotor shaft and to prevent them from idling by projecting a tenon from the case, and engaging it with a hole formed at the flange of the rotor shaft to position them. CONSTITUTION:A tenon 16 is projected on a rotor case 14 in which a rotor magnet 24 is mounted. A hole 18 is opened at the flange 8 of a rotor shaft 4. the tenon 16 is engaged with the hole 18 to position the shaft 4 and the case 14. Further, a calking ring 22 is provided between the lower end 10 of the shaft 4 and the case 14 to preferably prevent it from removing. Moreover, if a chute hole 20 is formed at the case 14, it can prevent the rotor from rotating in an unbalance. |
