Bearing inner ring
AssigneeSKF Industries, Inc.
InventorYngve Sundqvist
Life of this patent
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Abstract
The invention concerns an inner ring for a rolling bearing provided with a raceway for co-operation with a number of rolling bodies. In order to improve the bearing lubrication properties, the raceway is provided with grooves extending across the raceway with a direction component parallel to the bearing axis.
Claims2
An inner ring for a rolling bearing having at least one raceway, a plurality of rolling elements travelling in a predetermined direction relative to said raceway, means defining a plurality of closely spaced grooves which extend over substantially the entire raceway surface substantially transversely to said predetermined direction of the rolling elements, said grooves being formed by a grinding operation on said inner raceway surface and the spacing between adjacent grooves being less than about one hundredth the diameter of a rolling element, said grooves operable to retain a lubricant therein and form a layer or film between the raceway and the rolling elements.
Dependencies are inferred from the claim text.