Step bearing race swivel joint assembly
US6164707A · kind A · utility
40Cited by
15References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1996 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Nov 1, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2361/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid-carrying swivel joint has a stepped bearing race arrangement on interconnecting hubs having an improved bore seal capability. The stepped arrangement allows more ball bearings per adjacent race which allows equal distribution of hydrostatic end loading to each bearing race, thereby enabling maximum total end loading while minimizing load concentration on a particular bearing race section due to increased total ball and race contact area. A straight bore type seal is used to reduce surface area subject to axial pressure and to minimize rotational friction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.