Electric machines, stators and compressors and methods of manufacturing same

A stator for an electric machine, the stator comprising:

• a stator core;
• the stator core having an inner bore defining an inner diameter of the stator core;
• the stator core having an outer periphery defining an outer diameter of the stator core;
• wherein a ratio of the inner diameter of the stator core to the outer diameter of the stator core is greater than or equal to about sixty percent (60%).

A stator for an electric machine, the stator comprising:

• a stator core;
• the stator core having an inner bore defining an inner diameter of the stator core;
• the stator core having an outer periphery defining an outer diameter of the stator core;
• wherein a ratio of the inner diameter of the stator core to the outer diameter of the stator core permits the stator to be used with a rotor having a permanent magnet comprising a first magnet material to achieve a first rated full-load efficiency greater than or equal to about 92.5%, and with a rotor having a permanent magnet comprising a second magnet material that is different than the first magnet material to achieve a second rated full-load efficiency greater than or equal to about 92.5%.