Process for the production of a heat treated bearing ring

US4550479A · kind A · utility

Assignee

• SKF Kugellagerfabriken GmbH · DE

Inventors

• Lothar Walter · Schweinfurt, DE
• Walter Reith · Bad Bocklet, DE

Key dates

• Filing date: Feb 16, 1983
• Grant date: Nov 5, 1985
• Expiry date: Feb 16, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49936
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In a process for the production of a heat treated bearing ring with at least one longitudinal slit extending axially therethrough formed by means of two abutting ends lying opposite one another in the circumferential direction, one or more flat band sections of heat treatable strip material are stamped with at least a holding tongue formed on one or both respective abutting ends and a holding recess on the opposite abutting end fitting the respective holding tongue with a force fit. The band section is bent to form a bearing ring, with each holding tongue of the one abutting end radially engaging the respective holding recess of the other abutting end on the respective longitudinal slit. The ring is then heat treated and then the holding tongue is broken out of its respective recess.