Three-ring needle bearing

US6220760A · kind A · utility

Assignee

• Fag Automobiltechnik AG · DE

Inventors

• Gottfried Ruoff · Oberwerrn, DE
• Heinrich Hofmann · Schweinfurt, DE

Key dates

• Filing date: Jul 12, 1999
• Grant date: Apr 24, 2001
• Expiry date: Jul 12, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2116
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A three-ring needle bearing with a central support shaft, a center ring around the shaft, an outer ring around the center ring, and an inner needle array between the shaft of the center ring and an outer needle array between the center ring and the outer ring. An axial disk at one axial end of the bearing push fit on the center ring and radially projecting past both the inner needle array and the outer needle array for axially supporting them. The outer ring having bend-in moldings which past the axial disk at one end and past the end of the outer needle array at the other end. A drive shaft rotates the center ring, which is eccentric with reference to the support shaft.