| 摘要 |
An improved bearing cap comprises a cap surface having an inner rim, an outer rim, and one or more protuberances extending upwardly from the cap surface a distance greater than the inner rim. Four protuberances are preferably spaced ninety degrees apart from one another and are positioned radially outward from the annular inner rim of the bearing cap. An improved electric motor comprises a motor shaft, a housing having an inner rim defining an opening through which the motor shaft extends, and a washer circumscribing the motor shaft on an interior side of the housing, where the housing is configured to prevent the washer from moving into contact with the inner rim when the motor shaft is rotating. The housing preferably has a component construction to facilitate its assembly, and comprises the improved bearing cap which itself includes the inner rim.
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