Bearing device and rotating device
US11655851B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2019 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Jun 5, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C35/077
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bearing device according to an embodiment is a bearing device for rotatably supporting a rotational shaft, the device including at least one rolling bearing which includes an inner race fixed to the rotational shaft, a rolling element, and an outer race for rotatably holding the rolling element with the inner race, and a casing for housing the rolling bearing, the casing including a plurality of first oil supply holes formed at intervals in a circumferential direction for supplying lubricant oil to a first gap between the rolling bearing and an inner circumferential surface of the casing. Each of the plurality of first oil supply holes satisfies: π·d1·δ1<π·d12/4, (a) where d1 is a diameter of an outlet opening of the first oil supply hole, and δ1 is a space of the first gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.