Method and apparatus for casting or injection-molding of cages of cylindrical rolling elements

US4362687A · kind A · utility

Assignee

• SKF Kugellagerfabriken GmbH · DE

Inventors

• Armin Olschewski · Schweinfurt, DE
• Manfred Brandenstein · Aschfeld, DE
• Lothar Walter · Schweinfurt, DE
• Heinrich Kunkel · Schweinfurt, DE
• Herbert Dobhan · Bergrheinfeld, DE
• Peter Horling · Schweinfurt, DE
• Norbert Klupfel · Diez, DE

Key dates

• Filing date: Nov 25, 1980
• Grant date: Dec 7, 1982
• Expiry date: Nov 25, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S425/058
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

In a method and apparatus for casting or molding cages for rolling elements, two slides are provided for each pocket. The slides have an engaging, inclined surface, and are shaped to permit one of the slides to be removed by initially sliding it along the inclined surface. The other slide may thereby be moved laterally in the formed pocket, and withdrawn from the pocket. Facing slides of adjacent pockets may be joined together, with limited movement possible therein, to form a complete ring serving as a mold member.