WHEEL HUB ROLLING BEARING ARRANGEMENT WITH A SEALED ROTARY LEADTHROUGH OF A COMPRESSED AIR SUPPLY LINE OF A MOTOR VEHICLE TYRE

A wheel bearing (12) is provided with a first ring (14), a second ring (20) which is mounted rotatably relative to the first ring via at least one greased rolling bearing (18), a sealing unit (24) arranged in the radial direction between the first ring (14) and the second ring (20), a further sealin...

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Bibliographische Detailangaben
Hauptverfasser:	SCHÄFER, Marc-André, BARTHEL, Bernd
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AXLES FOR WHEELS OR CASTORS BEARINGS BLASTING CASTORS DEVICES OR ARRANGEMENTS RELATED TO TYRES ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INCREASING WHEEL ADHESION JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION VEHICLE TYRES VEHICLE WHEELS VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A wheel bearing (12) is provided with a first ring (14), a second ring (20) which is mounted rotatably relative to the first ring via at least one greased rolling bearing (18), a sealing unit (24) arranged in the radial direction between the first ring (14) and the second ring (20), a further sealing unit arranged in the radial direction between the first ring (14) and the second ring (20), and a pressure chamber (36), wherein a supporting ring (40) for axially supporting the sealing unit (24) in the event of pressure in the pressure chamber (36) is arranged in the axial direction between the rolling bearing (18) and the sealing unit (24), wherein the supporting ring (40) forms an air gap (50), which is dimensioned for retaining lubricating grease of the rolling bearing (18), between the supporting ring (40), on the one hand, and the first ring (14) or second ring (20), which is rotatable relative to the supporting ring (40), on the other hand. As a result, a long service life for a rotary leadthrough (10) for a wheel bearing (12) is made possible.