Porous slide bearing and method for manufacturing the same
US5164256A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Oct 26, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A porous slide bearing (1) made of a porous sintered compact (5) is impregnated with an oil or a lubricant (6) containing a thickening agent at a concentration of less than 3 percent by weight and in the outer surface area thereof with a lubricant (7) containing a thickening agent at a concentration of 3 percent by weight or more. Such a bearing can prevent leakage of lubricant owing to fluctuations in temperature. A method for producing a porous slide bearing includes the steps of homogenizing a lubricant to make the crystals contained therein into fine particles and to disperse them uniformly, and impregnating under vacuum said lubricant into pores in a porous slide bearing. This method makes it possible to improve the penetration of grease into the bearing, to lower its apparent viscosity and to improve the impregnating efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.