Current insulated bearing components and bearings

US9115755B2 · kind B2 · utility

Assignee

• Picosun Oy · FI

Inventors

• Ivan Kolev · Broad Brook, US
• Paul Peeters · Eindhoven, NL
• Roland Tap · Koblenzer Straße, DE
• Bertram Haag · Höchstadt an der Aisch, DE
• Yashar Musayev · Nuremberg, DE
• Serge Kursawe · Uttenreuth, DE
• Tim Matthias Hosenfeldt · Nuremberg, DE
• Jurgen Gierl · Erlangen, DE
• Juhana Kostamo · Espoo, FI

Key dates

• Filing date: Dec 27, 2012
• Grant date: Aug 25, 2015
• Expiry date: Mar 28, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2380/26
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a bearing component having at least one layer having a high hardness and a high current insulation property, the layer comprising a nonconductive oxide layer selected from the group comprising an Al2O3 layer, a TaO layer, an SiO2 layer, a mixed layer comprising two or more of the foregoing oxides, a multilayer structure comprising alternating layers of two or more of the foregoing oxides and a DLC layer such as a ta-C layer, there being at least one ALD layer comprising at least one layer of a material deposited by an ALD (atomic layer deposition) process on the at least one layer having a high hardness and a high current insulation property, the ALD layer itself having a high current insulation property and comprising a material or layer structure selected from the said group of materials.