Radial shaft-sealing ring and process for manufacturing the same

US6367812B1 · kind B1 · utility

Assignee

• CARL FREUDENGERG KG · DE

Inventors

• Hans Reinhardt · Bretten, DE
• Rolf Vogt · Oftersheim, DE

Key dates

• Filing date: Jul 11, 1997
• Grant date: Apr 9, 2002
• Expiry date: Jun 19, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J15/322
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A radial shaft-sealing ring with a sealing (1) ring made of a polymer with sealing properties, rubber for example. The sealing ring has at least one lip (2) that rests on the shaft (4) against a backing ring (3) at the side not subject to pressure. The lip is permanently fastened to a reinforcing ring (5). The cross-section of the reinforcing ring in accordance with the invention is L shaped with at least one wall that extends radially inward and rests against and partly covers the backing ring.