Pre-stressed ball bearing and method and tool for its manufacture
AssigneeNadella
InventorStephan Gerard
Life of this patent
Estimating the term…
Abstract
The invention concerns ball bearings which automatically take up play, are self-centering and self-adaptable to the stress. The bearing comprises an inner ring (1), an outer ring in two parts (2a, 2b), balls (3), an elastically yieldable element (4) and a case (5). One of the rings is formed of two parts (2a, 2b) which are relatively movably fitted together and some of the four rolling raceways along which the balls roll have set-back depressions arranged along their circumference. Application in particular in the automobile industry.
Claims7
A pre-stressed rolling bearing comprising a case, an inner ring, an outer ring, rolling balls disposed between the inner and outer rings, at least one elastically yieldable element compressed and thus prestressed in the case between the case and one of the rings for applying the rolling members in contact with the inner rings and outer rings along circular raceways on the rings, each ball travelling along four raceways, two of said raceways being located on the inner ring and two of said raceways being located on the outer ring, one of said rings comprising two parts on each of which parts is located one of the two raceways of said one ring, said ring parts being freely movably engaged one inside the other whereby to transmit the pre-stress of the elastically yieldable element to the balls, and set-back depressions being provided on the raceways to ensure that a pre-stressing of the balls is locally avoided.
Dependencies are inferred from the claim text.