Barrel-shaped bearing

US7338213B2 · kind B2 · utility

Assignee

• FAG Kugelfischer AG · DE

Inventors

• Rainer Schroder · Egenhausen, DE
• Martin Grehn · Dittelbrunn, DE

Key dates

• Filing date: Nov 21, 2003
• Grant date: Mar 4, 2008
• Expiry date: Sep 28, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C33/52
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A barrel-shaped bearing which comprises an external ring and an internal ring, at least one row of barrel-shaped rolling bodies arranged therebetween, the cage in the form of a disk which turns together with the rolling bodies, engages inside a peripheral groove around each rolling body and is provided with recesses corresponding to the number of the rolling bodies of the one row arranged on the external periphery of the cage. The total rolling surface of the internal ring is embodied such that the cross section thereof is concave along the entire axial length of the rolling body. The smallest distance between both sides of the cavity of the disk-shaped cage in the area of the external periphery thereof is less than the diameter of a rolling body in the area of the peripheral groove thereof.