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:
Apr. 16, 2002
Filed:
Mar. 23, 2000
Alexander Jan Carel De Vries, Tiel, NL;
Arimin Herbert Emil August Olschewski, Nieuwegein, NL;
John Howard Tripp, Bilthoven, NL;
Pieter Martin Lugt, Vianen, NL;
SKF Engineering & Research Centre B.V., Nieuwegein, NL;
Abstract
A rolling element bearing comprises an inner ring, an outer ring and a series of rolling elements the rolling surface of which is in contact with the raceway surfaces of both rings, and possibly at least one flange the surface of which is in slidable contact with the end surface of a roller element, at least one of these surfaces ( ) being provided with a topography comprising recesses ( ) which are generally isolated from each other by lands ( ) and which may contain a lubricant. The recesses have a maximum size of 100 micrometer in a direction parallel to the surface in question.