ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,711, issued on May 20, was assigned to AKTIEBOLAGET SKF (Gothenburg, Sweden).
"Rolling-element bearing" was invented by Christoph Kern (Aschach/Steyr, Austria), Emmanuel Pichlmaier (Seckau, Austria), Alfred Schwappach (Bundorf, Germany) and Jens Bergmann (Bergrheinfeld, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An axially supporting rolling-element bearing of a rolling mill shaft includes an inner ring having a raceway, an outer ring having a raceway and a plurality of rolling elements on the raceways between the rings. An outer surface of the outer ring includes an opening such as a groove that faces radially outward and contains a sea...