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:
Sep. 30, 2014
Filed:
Oct. 27, 2011
Applicants:
Oskar Beer, Landshut, DE;
Franz-josef Ebert, Hammelburg, DE;
Gerhard Kreiselmeier, Dittelbrunn, DE;
Edgar Streit, Poppenlauer, DE;
Inventors:
Oskar Beer, Landshut, DE;
Franz-Josef Ebert, Hammelburg, DE;
Gerhard Kreiselmeier, Dittelbrunn, DE;
Edgar Streit, Poppenlauer, DE;
Assignee:
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 53/10 (2006.01); F16C 33/12 (2006.01); F16C 33/62 (2006.01); F16C 33/32 (2006.01);
U.S. Cl.
CPC ...
F16C 33/62 (2013.01); F16C 33/32 (2013.01);
Abstract
A roller bearing having two cooperating rolling parts of which one is of ceramic and the other of a steel. The steel part is of such structure and/or material and/or is so produced to cause residual compressive stresses to form beneath the contact surface of the steel part, at least in a load-free state, down to a depth.