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. 15, 2006
Filed:
May. 31, 2002
Espejel Guillermo Morales, Huizen, NL;
Antonio Gabelli, Ijsselstein, NL;
Pieter Martin Lugt, Vianen, NL;
Espejel Guillermo Morales, Huizen, NL;
Antonio Gabelli, Ijsselstein, NL;
Pieter Martin Lugt, Vianen, NL;
AB SKF, Gothenburg, SE;
Abstract
A rolling element having comprises an inner ring, an outer ring and a series of rolling elements which are in contact with the raceways of the rings, an ultra-low viscosity fluid being present in the contacts having a kinematic viscosity ν=(η/ρ) of less than 2 mm/s, wherein the surfaces of the rings and the rolling elements have asperities which can have solid-to-solid contact during operation of the bearing. A factor <i>D</i> is defined which is equal to (I) whereby the solid-to-solid contact of the asperities is reduced by selecting such design parameters and operating conditions of the bearing that <i>D</i> is in the range from 8.0×10mrad sto 1.36×10mrad s.