Axial anti-friction bearing, in particular axial needle bearing

US9145916B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Wolfgang Fugel · Koblenzer Straße, DE
• Wolfram Kruhoffer · Herzogenaurach, DE

Key dates

• Filing date: Jun 7, 2011
• Grant date: Sep 29, 2015
• Expiry date: Jun 7, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/86
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An axial roller bearing, in particular an axial needle bearing, having a first annular bearing disk and a second annular bearing disk that are each made of a thin-walled sheet steel and are arranged at a distance from one another on a common center axis, and a plurality of rolling elements, arranged next to one another, that roll between the axial inner sides—implemented as races—of the two bearing disks and that are held at uniform distances from one another by a bearing cage. The bearing disks are implemented as disk springs that deflect as a function of load and have races positioned at an angle, and are arranged relative to one another such that the rolling elements have low-friction point contact in the unloaded state of the axial roller bearing and only have load-bearing line contact with the races in the fully loaded state.