Sliding bearing structure for a shaft member
US8636415B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 11, 2012 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Apr 11, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2202/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sliding bearing structure for a shaft member includes: a shaft member; a bearing member rotates relative to the shaft member; an oil supply space to which lubrication is supplied between sliding surfaces of the shaft member and the bearing member; two annular grooves formed in a circumferential direction in an inner peripheral surface of the bearing member; and two annular seal members formed as separate pieces from the shaft member and the bearing member, and arranged in the annular grooves between the shaft member and the bearing member. Each annular seal member is formed in plural, and is made of material having a thermal expansion coefficient such that an inside diameter of the annular seal member is smaller than an inside diameter of the bearing member at a low temperature, and is the same as or larger than the inside diameter of the bearing member at a high temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.