Sealing device for bearing bushings particularly for universal joints

US4645474A · kind A · utility

Assignee

• AKTIEBOLAGET SKF · SE

Inventors

• Armin Olschewski · Schweinfurt, DE
• Bernhard Bauer · Lebring, AT
• Elisabeth Zirk · Dittelbrunn, DE

Key dates

• Filing date: Dec 13, 1985
• Grant date: Feb 24, 1987
• Expiry date: Dec 13, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2361/41
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A sealing device for bearing bushings, especially for universal joints including a cup-shaped bearing bushing overlying a universal joint pin comprising an inner sealing ring, a sheet metal part connected to the bearing bushing adapted to fix the inner sealing ring in place in an axial direction, and an outer sealing ring provided on a shoulder of the joint pin supported in the bearing bushing, the inner sealing ring has a retaining part between the rolling elements and the free end of a preferably radially oriented shank of the sheet metal part, which has one or more openings, which connect the spaces defined by the outer sealing ring, the inner sealing ring, and the sheet metal part to each other.