Permanent magnet type rotating electric machine

A permanent magnet type rotating electric machine comprising:

• a stator having a plurality of slots formed in a stator core so as to surround teeth in a circumferential direction;
• concentratedly wound armature windings disposed in said slots and surround said teeth;
• and
• a rotor in which around a rotor core permanent magnets are disposed and around the outer circumference thereof, a non-iron metal cover is provided;
• wherein
• an inner face of each of said teeth has a substantially planar surface facing said rotor;
• and
• an outer periphery of each said slot comprises first and second portions which are substantially planar and are substantially parallel, respectively, to inward facing planar surfaces of teeth adjacent said slot, and a substantially non-parallel portion.