The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2013
Filed:
May. 28, 2010
Stefan Hess, Erlangen, DE;
Peter Solfrank, Frensdorf, DE;
Patrick Ullmann, Herzogenaurach, DE;
Alexander Kern, Erlangen, DE;
Stefan Hess, Erlangen, DE;
Peter Solfrank, Frensdorf, DE;
Patrick Ullmann, Herzogenaurach, DE;
Alexander Kern, Erlangen, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A bearing arrangement is provided having a shaft () with a bearing journal (), and a needle bearing () which is arranged thereon and has a cage () and needle rollers () accommodated in the latter. The bearing journal is provided with a hardened and precision-machined inner raceway () for the needle rollers and steps back radially in relation to axial shoulders () of adjacent shaft sections (), and the axial shoulders serve as run-on surfaces for the axial end sides () of the cage fitted between the axial shoulders. In this case, relief grooves () are provided, with the relief grooves extending on both sides of the inner raceway and each being dimensioned in such a manner that, over the entire circumferential region of the axial shoulders, the axial distance (D) thereof from each other is significantly larger than the inner raceway width (B) existing therebetween.