Rolling-element bearing including an electrically insulating layer

US10823229B2 · kind B2 · utility

Assignee

• AKTIEBOLAGET SKF · SE

Inventors

• Karl Preis · Heidenheim, DE
• Ronald Berger · Clearwater, US
• Helmut Weninger · Steyr, AT

Key dates

• Filing date: Mar 14, 2018
• Grant date: Nov 3, 2020
• Expiry date: Mar 14, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2223/42
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A rolling-element bearing includes a first ring element, a second ring element, a plurality of rolling elements rotatably disposed between the first ring element and the second ring element, and an electrically insulating layer on a surface of the first ring element. The electrically insulating layer is a ceramic layer containing a mixture of aluminum oxide (Al2O3) and titanium oxide, and the insulating layer includes titanium compounds that contain reduced titanium oxide (TiOx) and/or metallic titanium (Ti), and the insulating layer further includes a cured synthetic resin sealer.