Method of manufacturing a core part with the shaft body for the rotating electrical machine and the core part with the shaft body for the rotating electrical machine.

摘要

PROBLEM TO BE SOLVED: To reliably secure release load for a rotary electric machine shaft body with a core part while allowing suppressing cost.;SOLUTION: A shaft body 10 with a core part comprises: a core part 12; a shaft body 40 which fixes and holds the core part 12; and a key piece 30 which is used to fix the shaft body 40 and the core part 12. The shaft body 40 comprises: an end part 42; a flange part 43 which receives an end part of the core part 12; and a main shaft body 44. The main shaft body 44 includes a first groove 46 having a groove width W_S and a second groove 48 having a groove width W_G and the same groove depth as the first groove 46, in an axial direction. A length L_C of the second groove 48 is basically the same size as a length of the core part 12 in the axial direction. The groove width W_G of the second groove 48 is basically the same size as a dimension obtained by adding a width W_C of a salient part 20 or 22 of the core 12 and a width W_K of the key piece 30.;COPYRIGHT: (C)2013,JPO&INPIT