| 摘要 |
In a rotary electric machine, it can be further ensured that a rotor core and a drive shaft are attached to each other. A rotor core (12) formed with a shaft hole (12a) at the center thereof is provided. A cylindrical member (60) formed in a cylindrical shape and fitted into the shaft hole (12a) of the rotor core (12) along an outer peripheral surface of the cylindrical member (60) is provided. A drive shaft (50) inserted into a hollowed part (60b) of the cylindrical member (collar) (60) is provided. The collar (60) is made of the material having a lower Young's modulus than those of the rotor core (12) and the drive shaft (50), and is formed such that an inner peripheral surface of the collar (60) is a tapered surface (60a). The drive shaft (50) has, at an outer periphery thereof, a tapered surface (54a) such that the tapered surface (54a) is in surface contact with the tapered surface (60a) of the collar (60) in fitting of the drive shaft (50) into the collar (60). |
