Roller element bearing with water repellent filter seal
AssigneeSKF Industrial Trading and Development Company, B.V.
InventorGeorge T. Y. Wan
Life of this patent
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Abstract
A rolling element bearing, comprising bearing rings with rolling elements between the bearing rings, and a filter seal extending between the rings for closing a space between the rings. Said filter seal is oil permeable and water repellant. Hydrophilic chemicals are grafted on the side of the filter material facing the rolling elements. The side of the filter material opposite the rolling elements is coated with a water repellant substance having a high contact angle. The filter material is a metal mesh or a microporous polymeric material.
Claims7
A rolling element bearing, comprising bearing rings with rolling elements between the bearing rings, and a filter seal extending between the rings for closing a space between the rings, said filter seal comprising a layer of filter material which is both oil permeable and water repellant.
Dependencies are inferred from the claim text.