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:
Dec. 20, 1994
Filed:
Dec. 15, 1992
Bernard Harris, Northbrook, IL (US);
Dennis E Bozych, Downers Grove, IL (US);
Rexnord Corporation, Milwaukee, WI (US);
Abstract
A process for producing a plurality of bearing members each of which has a bore defined by an inner bearing surface of self-lubricating material containing lubrication grooves that open into the bore. To perform the process a mandrel is provided having an axial length, spaced apart ends and an outer surface, and one or more rod members is affixed on the outer surface. A parting agent is applied to the mandrel outer surface and rod members and a layer of self-lubricating material is layered over the outer surface and rod members. A filament wound overlayment is applied on top of the layer of self-lubricating material along with a hardenable resin to bond the layer of self-lubricating material and overlayment together. The resin is hardened to form a rigid elongated tube member and the mandrel and rods are removed to expose the inner bearing surface and lubrication grooves. The rigid tube is then severed transversely into a plurality of individual bearing members.