Radial antifriction bearing, especially single-row grooved antifriction bearing

US7938585B2 · kind B2 · utility

Assignee

• Schaeffler KG · DE

Inventors

• Heinrich Hofmann · Schweinfurt, DE
• Horst Doppling · Herzogenaurach, DE
• Andreas Bohr · Herzogenaurach, DE
• Rainer Eidloth · Bamberg, DE

Key dates

• Filing date: Dec 5, 2006
• Grant date: May 10, 2011
• Expiry date: Dec 19, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2361/45
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A radial antifriction bearing which has an outer bearing ring, an inner bearing ring and a multitude of rollers, arranged between the bearing rings and held by a bearing cage. The rollers are configured as spherical disks that each have two parallel lateral surfaces which are symmetrically flattened from a basic spherical shape. The bearing cage has cage pockets in which the rollers are axially guided between the bearing rings via two low-friction point contacts between the center areas of their lateral surfaces and the longitudinal webs of the cage pockets. The rollers have a defined degree of freedom for tilt movements exerted at an angle to the running direction and a defined degree of freedom for self-adjustment to the pressure angle of the radial antifriction bearing.