Electric machine and associated method

An electric machine comprising:

• a housing;
• a stator secured to said housing
• a rotor rotatable associated with said housing, said rotor supported by a shaft;
• a bearing having an inner ring and an outer ring, said bearing rotatably securing said rotor to said housing;
• and
• an anti-rotation device for use with said bearing, said bearing mounting in housing of an electric machine, said anti-rotation device adapted for engagement with the outer ring of said bearing and with the bearing housing to limit the rotation of the outer ring of said bearing within the bearing seat formed in the bearing housing, wherein said anti-rotation device includes a first feature for engagement with the outer ring of the bearing and a second feature for engagement with the bearing housing, said first feature and said second feature adapted to limit the rotation of the outer ring of the bearing within the bearing housing, said first feature including an internal surface for engagement with said outer ring of said bearing and said second feature including an engagement surface for engagement with a protrusion extending from the bearing housing, said anti-rotation device comprises a ring and said first feature comprises an interior surface of said ring.

A method for containing a bearing in an electric machine, comprising:

• providing an anti-rotation device for use with a bearing having an inner ring and an outer ring,
• engaging the anti-rotation device with the outer ring of said bearing;
• and
• engaging the anti-rotation device with the bearing housing to limit the rotation of the outer ring of said bearing within the bearing seat formed in the bearing housing, said anti-rotation device including a first feature for engagement with the outer ring of the bearing, said first feature comprises an internal surface for engagement with said outer ring of said bearing;
• and a second feature for engagement with the bearing housing, said first feature and said second feature adapted to limit the rotation of the outer ring of the bearing within the bearing housing, said second feature comprising an engagement surface for engagement with a protrusion extending from the bearing housing, wherein said anti-rotation device comprises a ring and wherein said first feature comprises an interior surface of said ring, wherein said anti-rotation device further comprises an outer flange extending outwardly from a first end of said ring, wherein the recess comprises a first generally rectangular slot extending inwardly from the outer edge of the outer flange and further comprising a second generally rectangular slot, opposed to the first slot and extending inwardly from the outer edge of the outer flange.