Bearing assembly with sidewall-brazed PCD plugs
US5342129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1992 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Mar 30, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2352/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of forming a bearing assembly is set forth. A PCD disk typically of circular construction is joined to a cylindrical plug formed of support metal. The plug is registered with respect to an internal shoulder in a passage formed in a ring for the bearing assembly. Multiple PCD disks are installed in the same fashion. In assembly, the disk is attached to the cylinder, the cylinder is wrapped in brazed material, then the cylinder with the brazed material wrapping is registered on an internal shoulder in a drilled passage in the bearing assembly. A brazing temperature which is too low to damage the material is applied to complete joinder. Then, multiple disk faces supported by individual disk in a circle around the bearing assembly can be lapped to assure that they are brought to a common height with respect to a reference plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.