Electric rotating machine, and manufacturing method therefor

A rotating electric machine comprising:

• a stator core formed annularly;
• a cylindrical tubular frame whose inner circumferential surface is fitted on the stator core and that holds the stator core;
• a rotor that is disposed in an inner space of the stator core and whose outer circumferential surface faces an inner circumferential surface of the stator core through an air gap;
• and
• a rotor shaft that is fixed to the rotor, and pivotably supported,
• wherein the frame has a cylinder portion that fits the stator core into the inner circumferential surface, and a fastening flange that is provided at an axis-direction end portion of the cylinder portion, protrudes from the axis-direction end portion toward the radially outside of the cylinder portion, and is fastened to a supporting member that supports the electric rotating machine, and
• wherein the fastening flange is formed in such a way as to incline toward a direction departing from the outer circumferential surface of the cylinder portion with respect to the radial direction of the cylinder portion, and it is configured in such a way that in a state where the fastening flange is fastened to the supporting member, compression-direction stress is generated on a root portion, at the outer circumferential surface side of the cylinder portion, of the fastening flange.