Rolling element bearing system with a filtering seal
AssigneeSKF Industrial Trading and Development Company, B.V.
InventorsAntonio Gabelli, Gerardus De Vries, Gerhard Poll
Life of this patent
Estimating the term…
Abstract
A rolling element bearing system comprises at least one rolling element bearing with an outer race and an inner race which enclose a space containing rolling elements, which space is confined to the outside by sealing rings. At least one of the sealing rings and/or one of the races is provided with flow generating structure for feeding a lubricant into the space, as well as a filter for preventing the ingress of contaminations into the space with the lubricant. Preferably at least one of the sealing rings at its edge which slidably contacts one of the races has a shape which promotes the outflow out of the space towards the outside of the sealing ring during relative movement of the sealing ring and race.
Claims18
A rolling element bearing system including at least one rolling element bearing having outer and inner races which enclose an annular space having opposite ends, a plurality of rolling elements in said space and between said races, and a sealing ring closing each end of said space, characterized in that at least one of said sealing rings comprises flow generating means for feeding a lubricant into said space, and said system further comprises filtering means preventing the ingress of contamination into said space with said lubricant.
A system according to claim 8 whereby said at least one sealing ring has outer and inner peripheral edges respectively corresponding to said outer and inner races, with one of said peripheral edges being a sliding edge slidably contacting the corresponding race and having a shape which promotes the outflow of lubricant out of said space during relative movement of said sealing ring and said race in slidable contact therewith, and wherein said flow generating means includes an opening in said sealing ring closer to the peripheral edge that is not said sliding edge.
A rolling element bearing system including at least one rolling element bearing having outer and inner races which enclose an annular space having opposite ends, a plurality of rolling elements in said space and between said races, and a sealing ring closing each end of said space, characterized in that at least one of said races comprises flow generating means for feeding a lubricant into said space and filtering means for preventing the ingress of contamination into said space with said lubricant.
Dependencies are inferred from the claim text.