Hub bearing unit with a separate axle stub
OwnerHendrikus Jan Kapaan, Rico Dittmar +3inventors
InventorsHendrikus Jan Kapaan, Rico Dittmar, Sven Gothberg, Jesko-Henning Tanke, Norbert Huhn
Life of this patent
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Abstract
A hub bearing unit comprises an axle stub (41) and a coaxial hub member which is rotatably supported with respect to the axle stub by two rolling element bearings (34). The axle stub is provided with connection elements for detachably connecting the axle stub to a vehicle axle. The axle stub (1) may have a screw-threaded end for connection to a correspondingly screw-threaded bore of the vehicle axle, as well as a tapered end for connection to a correspondingly tapered bore of the vehicle axle.
Claims27
Hub bearing unit, comprising an axle stub (1) and a coaxial hub member (2) which is rotatably supported with respect to the axle stub (1) by means two rolling element bearings (3, 4), characterized in that the axle stub (1) is provided with rotational symmetric connection means (5, 6;
- 17;
- 29) for detachably connecting the axle stub (1) to a vehicle suspension axle (7).
Unit according to any of the preceding claims, wherein the axle stub (1) is solid.
Unit according to any of the preceding claims, wherein the axle stub (1) has a through-going bore (39) which at its end facing away from the connection end opens out in a support face, said bore (39) being for accommodating a wheel drive shaft
Unit according to any of the preceding claims, wherein at least one of the bearings (4) has a raceway (25) which is integrated in the axle stub (1).
Unit according to any of the preceding claims, wherein at least one of the bearings (3, 4) has an inner bearing ring (20, 21;32) which is fitted on the axle stub (1).
Unit according to any of the preceding claims, wherein setting means (34) are provided for setting a predetermined preload or play in the bearings (3, 4).
Unit according to any of the preceding claims, wherein the rolling element bearings (3, 4) have a common outer ring (22).
Unit according to any of the preceding claims, wherein the rolling element bearings are tapered roller bearings (3, 4).
Unit according to any of the preceding claims, wherein a combination of a tapered rolling element bearing and a ball bearing is provided.
Unit according to any of the preceding claims, wherein the axle stub comprises two axle stub parts which are permanently connected to each other, e.g. by energy welding or friction welding.
Unit according to any of the preceding claims, wherein at least a sensor is provided for measuring rotating speed, temperate and/or load etc.
Unit according to any of the preceding claims, wherein the axle stub contains at least one passage for a liquid, gas or cables.
Dependencies are inferred from the claim text.