Bearing unit with retaining cage
US11365761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2020 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Aug 3, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Bearing unit provided with at least one ring of rolling bodies and, for retaining the rolling bodies, at least one retaining cage which has a cage bar, a plurality of circumferentially spaced cage arms that extend from one side of the cage bar, and a plurality of partially spherical cavities for retaining the rolling bodies; contact points between the rolling bodies and the cage being positioned in the vicinity of a polar region of each rolling body. The minimum number of contact surfaces for containing the rolling bodies in the direction of rotation of the bearing and ensuring contact only in the polar region is equal to two for each rolling body, namely one upper contact surface and one lower contact surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.