Bearing and bearing arrangement

US9863471B2 · kind B2 · utility

Assignee

• AKTIEBOLAGET SKF · SE

Inventors

• Marcus Loof · Kungälv, SE
• Peter James · Oldbury, GB
• Lars Stigsjöö · Partille, SE

Key dates

• Filing date: Apr 6, 2016
• Grant date: Jan 9, 2018
• Expiry date: May 23, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/72
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A spherical roller bearing is provided having an outer ring that includes at least one inner raceway, an inner ring that includes a first and a second outer raceway, a plurality of roller elements disposed in a first and second roller row between the at least one inner raceway and the first and second outer raceway, a cage for one of guiding and retaining the roller elements in the first and second roller row, the cage includes a plurality of cage pockets, in which one of the plurality pf rollers is disposed within each cage pocket. The bearing further provides a specific pitch circle diameter (PCD), and when the cage is under-pitch roller centered in relation to the pitch circle diameter (PCD). In addition, a bearing arrangement and a wind turbine bearing arrangement is disclosed.