Insulated bearing
US12158184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2022 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Mar 3, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C35/077
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An insulated bearing includes an outer ring, a plurality of rolling elements, and an insulating cap. The outer ring has an inner rolling surface and an outer spiral groove, the rolling elements are in rolling contact with the inner rolling surface, and the insulating cap is screwed onto the outer ring. The insulating cap has an inner spiral, complementary to the outer spiral groove. In an example embodiment, the outer spiral groove comprises a cross-section having a shape selected from the group consisting of a rectangle, a triangle, and a trapezoid. In an example embodiment, the outer spiral groove has between 2 and 4 revolutions. In an example embodiment, the outer spiral groove has a width of 4 millimeters or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.