Oil-retaining sintered bearing and method of producing the same
US10570959B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 20, 2016 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Dec 20, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An oil-retaining sintered bearing in which friction coefficient can be reduced and a sliding property as a bearing can be improved by supplying a sufficient amount of oil to a sliding surface and preventing the supplied oil from moving to an interior from the sliding surface; a sliding surface 3 supporting an outer peripheral surface of a shaft and a helical oiling surface 4 around a shaft axis of a bearing hole are adjacently formed on an inner peripheral surface of the bearing hole into which the shaft is inserted; a surface open rate at the sliding surface 3 is not larger than 10%; and a surface open rate at the oiling surface exceeds 10%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.