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US 11,111,962 B1Granted
Bearing with an integrated electrical shunt
AssigneeSchaeffler Technologies AG & Co. KG
InventorsMarion Jack Ince, Venkata Kottapalli, Guihui Zhong
Life of this patent
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Abstract
A bearing includes an integrated electrical shunt. The shunt includes electrically conductive fibers sandwiched between two washers, at least one of which is electrically conductive. The fibers are fastened to the electrically conductive washer by electrically conductive epoxy. An outer shield protects the fibers. The outer shield is held to the washers by a drawn cup. The washers, the drawn cup, and the outer shield all have oil drain holes to allow lubricant to flow to the rollers.
Claims10
A bearing comprising:
- an outer ring defining an outer raceway;
- an inner ring defining an inner raceway;
- a plurality of rollers in contact with the inner raceway and the outer raceway;
- and
- an electrical shunt having a plurality of electrically conductive fibers sandwiched between two washers including at least one electrically conductive washer, the electrically conductive washer electrically connected to the fibers and to the outer ring, the fibers rubbing against the inner ring, and the washers defining a first plurality of oil holes between the fibers such that lubricant can flow to the rollers.
2 more elements
An electrical shunt for a bearing comprising:
- an electrically conductive washer having a first inner surface and defining a first plurality of oil holes;
- a second washer having a second inner surface and defining a second plurality of oil holes aligned with the first plurality of oil holes;
- and
- a plurality of electrically conductive fibers sandwiched between the electrically conductive washer and the second washer and extending radially inward beyond the first and second inner surfaces, the fibers electrically connected to the electrically conductive washer.
1 more element
Dependencies are inferred from the claim text.