Step bearing race swivel joint assembly

Details Step bearing race swivel joint assembly Step bearing race swivel joint assembly

1996-11-01

2000-12-26

Shackelford, H.

Pipe joints or couplings

Swivel

Pipe in socket type

285 98, 384512, F16L 2704

Patent

active

061647071

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.

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patent: 5160229 (1992-11-01), Yoshino
patent: 5176457 (1993-01-01), Hofmann et al.

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