Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1994-01-07
1995-07-25
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 67R, 310 90, 310 91, H02K 516, H02K 106, H02K 714, H02K 708
Patent
active
054365198
ABSTRACT:
A fan motor has a pair of ball bearings placed in the vicinity of each end of an inner side of a bearing race. A plurality of projections are sequentially placed circumferentially around a center portion of the bearing race to axially locate both the ball bearings. A plurality of low-profile projections are sequentially formed between neighboring projections on the inner side surface of the bearing race and are axially elongated from one installing position to that of another installing position of respective ball bearings. The ball bearings are supported by the inner side of each low-profile projection respectively at one end portion and the other end portion of the low profile-projections.
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Kawate Yosuke
Morikawa Fumihiro
Takahashi Shuji
Yanai Eiji
LaBalle Clayton E.
Nippon Densan Corporation
Stephan Steven L.
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