Rotor for rotary electric machine

A rotor for a rotary electric machine, comprising:

• a rotor core having an annular shape when viewed in an axial direction;
• a rotor shaft disposed on a radially inner side of the rotor core and coupled to the rotor core by an interference in a radial direction;
• and
• a magnet disposed in the rotor core for each magnetic pole in a form in which a plurality of magnetic poles are formed along a circumferential direction, wherein
• the rotor core has a plurality of holes in the axial direction that are radially inward than the magnet,
• the plurality of holes in the axial direction include a plurality of first holes regularly arranged in the circumferential direction at first radial positions and a plurality of second holes regularly arranged in the circumferential direction at second radial positions that are radially inward than the first radial positions,
• the first hole has a protruding shape of which an outline on the radially inner side protrudes to the radially inner side when viewed in the axial direction, and has a shape of which a center line, parallel to the radial direction and passing through a center in the circumferential direction of the first hole, passes between a portion in the circumferential direction of the adjacent second holes, and
• the outline on the radially inner side includes two straight lines, and a curve that passes through a radially outer side of an intersection point where extension lines of the two straight lines intersect and that connects the two straight lines.