Bearing ring with insulating coating
US10794427B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2016 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Jan 13, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2206/44
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A non-conventional, low temperature, process for applying a thin electrically insulating coating arrangement with high density, high purity, minimal porosity, and improved adhesion strength to a steel bearing component is provided. The bearing component is formed from steel and machined or otherwise formed to a near net shape. A high purity aluminum is electro-chemically deposited on the steel bearing component using a non-aqueous electrolyte in an inert environment to form a high purity aluminum coating at least over a portion of the steel bearing component. A surface of the high purity aluminum coating is then converted by an acid-bath into aluminum oxide to form an insulating layer. A bearing component and a bearing having such components is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.