Bearing with an integrated electrical shunt
AssigneeSchaeffler Technologies AG & Co. KG
InventorsMarion Jack Ince, Venkata Kottapalli, Guihui Zhong
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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.
Claims13
A method of manufacturing an electrical shunt comprising:
- winding a plurality of electrically conductive fibers around a set of pins;
- fastening the fibers, with an adhesive, to a first washer;
- removing the first washer and the fibers from the pins;
- fastening a second washer to the fibers such that the fibers are sandwiched between the two washers and extend radially inwardly beyond an inner diameter of the first washer and an inner diameter of the second washer;
- and
- piercing the fibers to remove portions which extend more than a predetermined distance beyond the inner diameter of the first washer.
A method of manufacturing a bearing comprising:
- winding a plurality of electrically conductive fibers around a set of pins;
- fastening the fibers, with an adhesive, to a first washer;
- removing the first washer and the fibers from the pins;
- fastening a second washer to the fibers such that the fibers are sandwiched between the two washers and extend radially inwardly beyond an inner diameter of the first washer and an inner diameter of the second washer;
- piercing the fibers to remove portions which extend more than a predetermined distance beyond the inner diameter of the first washer;
- and
- attaching a shunt to a bearing outer ring such that the fibers rub against a bearing inner ring.
Dependencies are inferred from the claim text.