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. 01, 2015
Filed:
Nov. 10, 2011
Brian A. Stern, Duluth, GA (US);
Yuhong Wu, Alpharetta, GA (US);
Stephen Estberg, West Chester, PA (US);
Tanya Berfield, Alpharetta, GA (US);
Brian A. Stern, Duluth, GA (US);
Yuhong Wu, Alpharetta, GA (US);
Stephen Estberg, West Chester, PA (US);
Tanya Berfield, Alpharetta, GA (US);
SOLVAY SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US);
Abstract
A polymeric thrust bearing is provided for an ultra-high PV environment. The polymeric thrust bearing includes an annular bearing body having an inner perimeter and an outer perimeter, and a plurality of lubricant channels extending across the annular bearing body from the inner perimeter to the outer perimeter. The annular bearing body comprises a polymer composition comprising a polymer having typically a glass transition temperature of at least about 140° C., such as an aromatic polyimide or a poly(aryl ether ketone), and at least one friction and wear additive. The polymeric thrust bearing is configured to withstand a velocity and a pressure in a lubricated environment in which the product of the velocity and the pressure is about 1,100,000 psi-fpm (23540 kg/cm×m/min) or more.