Rotor for rotating electric motor, and rotor manufacturing method

A method for manufacturing a rotor for a rotating electrical machine, the rotor including:

• a cylindrical and hollow rotor core having a plurality of laminated electromagnetic steel plates, wherein an inner peripheral surface and an outer peripheral surface of the rotor core are each adapted to face a magnetic gap, and the rotor core has an insertion hole;
• a first rotation support member having a first hole;
• and
• a second rotation support member having a second hole, wherein the first rotation support member and the second rotation support member are adapted to be located on opposite sides of the rotor core,
• wherein the method comprises:
• inserting a tubular pin with a closed end into the first hole, the insertion hole, and the second hole, wherein the tubular pin has a first end at which a flange is formed;
• and
• plastically deforming the tubular pin through fluid pressure pressing to enlarge the size of the tubular pin, thereby causing the tubular pin to tightly contact inner peripheral surfaces of the insertion hole, the first hole, and the second hole.