| 摘要 |
PROBLEM TO BE SOLVED: To prevent an interference between an end plate and a shaft from being reduced due to heat generation during motor driving, and to further reinforce fixing between a rotor core and a shaft at low cost.SOLUTION: The rotor includes: a rotor core 4; an end plate 7; and a ring 9 which is formed with a hole passing through the rotor core 4 and the end plate 7 on the identical center line, has such a structure as to be installed to cover a fitting section 7a of the end plate 7 from the outside in the axial direction and radial direction and to be fixed by inserting a shaft 1, and which is formed from the same material as the shaft 1. The ring 9 is fitted into the end plate 7 and is brought into contact with the shaft 1 to be fixed, thereby transmitting a rotational force generated at the rotor core 4 to the shaft 1 and fixing the ring 9 with the rotor core 4 and the shaft 1 maintaining a space in no contact. |
