Bearing and bearing arrangement

US9829038B2 · 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 4, 2016
• Grant date: Nov 28, 2017
• Expiry date: Apr 22, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2300/14
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A spherical roller bearing providing an outer ring having at least one inner raceway, an inner ring including a first and a second outer raceway, a plurality of roller elements arranged in a first and second roller row in-between the at least one inner raceway and the respective first and second outer raceway. The bearing includes a cage for retaining the roller elements in the rows. The cage provides a plurality of cage pockets where roller element is disposed in each. The cage is arranged such that; during operation, a loaded zone of the bearing is located at a radial top region of the bearing, the cage is roller centered on the axially inner ends of the roller elements, and when, during operation, a loaded zone is located at a radial bottom region of the bearing, the cage is under-pitch roller centered in relation to a pitch circle diameter (PCD).