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:
Aug. 25, 2020
Filed:
Sep. 05, 2018
Aktiebolaget Skf, Gothenburg, SE;
Rudolf Hauleitner, Steyr, AT;
Guillermo Enrique Morales Espejel, Ijsselstein, NL;
Antonio Gabelli, Ijsselstein, NL;
Aidan Kerrigan, Utrecht, NL;
Charlotte Vieillard, Woerden, NL;
Aktiebolaget SKF, Gothenburg, SE;
Abstract
A Hybrid rolling bearing includes an inner raceway and an outer raceway and a plurality of rolling elements arranged therebetween. The outer raceway and the inner raceway are made from bearing steel, having a first surface RMS roughness R. The rolling elements are made from a ceramic material and have second surface RMS roughnesses R. At least one of the rolling elements has an increased surface RMS roughness R, which is significantly higher than the RMS roughnesses R, of the remaining rolling elements. The hybrid rolling bearing can be installed within a refrigerant compressor.