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:
Jun. 25, 2013
Filed:
Dec. 02, 2008
Cornelius Petrus Antonius Vissers, Den Dungen, NL;
Hendrikus Jan Kapaan, Utrecht, NL;
Cornelius Petrus Antonius Vissers, Den Dungen, NL;
Hendrikus Jan Kapaan, Utrecht, NL;
Aktiebolaget SKF, Göteborg, SE;
Abstract
The present invention resides in a wheel bearing unit () having an inner member () and an outer member () rotationally coupled to each other by at least one row of rolling elements (), whereby at least one bearing inner ring () is mounted on the inner member (). The inner member () comprises a first section () and a second section () that at least party lies radially inward of the first section (). According to the invention, the first section () is formed from a first material and the second section () is formed from a metal material, preferably a lightweight metal such as aluminum. The second section () of the inner member () is joined to the first section () by means of a semi-solid metal process, and to ensure a radial interlock between the first and second sections (), the first section comprises a portion () extending in a radially inward direction, wherein the portion presents at least one surface that faces away from the bearing axis of rotation (X). Thus, as the semi-solid metal of the second section () cools, it has a surface against which to radially contract, thereby ensuring a permanent join and long service life of the unit ().