Radial rolling bearing, especially single-row deep groove rolling bearing

US7891880B2 · 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: Feb 22, 2011
• Expiry date: Dec 23, 2027

Classification

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

Abstract

A radial rolling bearing, which has an outer bearing ring, an inner bearing ring, and rollers, which are arranged between the bearing rings and held at uniform distances from one another in a peripheral direction by a bearing cage in individual cage pockets. The rollers are spherical disks that have parallel lateral surfaces which are symmetrically flattened from a basic spherical shape and which roll in groove-type raceways with their faces. The raceways are incorporated into the inner face of the outer bearing ring and the outer face of the inner bearing ring. The rollers are axially guided between the bearing rings via two low-friction line contacts between lateral surfaces and the longitudinal webs of the cage pockets. The rollers are configured to have a defined degree of freedom for self-alignment to the pressure angle of the radial rolling bearing.