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US 12,305,711 B2Granted
Rolling-element bearing
AssigneeAktiebolaget Skf
InventorsChristoph Kern, Emmanuel Pichlmaier, Alfred Schwappach, Jens Bergmann
Life of this patent
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Abstract
An axially supporting rolling-element bearing of a rolling mill shaft includes an inner ring having a raceway, an outer ring having a raceway and a plurality of rolling elements on the raceways between the rings. An outer surface of the outer ring includes an opening such as a groove that faces radially outward and contains a seal element. The seal element includes a seal lip that extends out of the groove. When the rolling element bearing is placed in a bore of a housing, the outer ring is spaced from the bore by the seal element.
Claims7
An assembly comprising:
- a housing having a bore defined by a cylindrical inner surface,
- a shaft radially supported in the bore by a radially supporting rolling-element bearing, and
- an axially supporting rolling-element bearing mounted on the shaft in the bore, the rolling-element bearing comprising:
- at least one inner ring,
- at least one outer ring, and
- a plurality of rolling elements disposed in a bearing interior between the at least one inner ring and the at least one outer ring,
- wherein the at least one inner ring includes at least one raceway on a radially outer surface,
- wherein the at least one outer ring includes at least one raceway on a radially inner surface facing the at least one raceway of the at least one inner ring and at least one radially outwardly facing opening on a radially outer surface,
- wherein at least one seal element is mounted in the at least one opening, the at least one seal element including at least one seal lip,
- wherein the at least one seal element includes a first seal element having a base section and a seal lip projecting from the base section, an inner end of the seal lip of the first seal element being located at the base section and an outer end of the seal lip of the first seal element being separated from the base section by a seal lip gap, and
- wherein the seal lip of the first seal element projects outward from the at least one opening in a direction having a radial component,
- wherein the seal lip of the first seal element is in contact with the cylindrical inner surface,
- wherein the radially outermost surface of the at least one outer ring is spaced from the cylindrical inner surface by a radial gap, and
- wherein the direction has an axial component.
11 more elements
Dependencies are inferred from the claim text.