Cylindrical bearing with solid lubricant embedded and fixed in inner peripheral surface thereof
US5516213A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Jul 7, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2300/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A cylindrical bearing with a solid lubricant embedded and fixed in a plurality of first and second helical grooves formed in an inner peripheral surface thereof, wherein each first helical groove is formed with a rightward rising inclination at an angle .theta..sub.1 of more than 0.degree. and not more than 45.degree. with respect to a reference line, while each second helical groove is formed with a leftward rising inclination at an angle .theta..sub.2 of more than 0.degree. and not more than 45.degree. with respect to the reference line, a line which connects shorter diagonal lines of parallelograms each formed by connecting points of intersection of adjacent ones of the first helical grooves and adjacent ones of the second helical grooves intersecting with the adjacent ones of the first helical grooves forms an angle .theta..sub.3 of less than 90.degree. with respect to the reference line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.