Accession Number : AD0164631

Title :   Method of Fabricating Hollow Balls for Use in Rolling Contact Bearing Applications.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Eklund,Phillip R. ; Campbell,Gabe L.

Report Date : 27 NOV 1973

Pagination or Media Count : 8

Abstract : The patent relates to a means for fabricating a seamless hollow ball by initially spin-forging a metal tube into a non-spherical structure that is hollow and closed except for a pair of equatorial or diametral opernings. The process simultaneously and progressively shapes the initially formed structure into a spherical hollow ball and eliminates the openings by a controlled plastic deformation.

Descriptors :   *Ball bearings, *Fabrication, *Patents, Antifriction bearings, Spinning(Industrial processes), Mechanical working, Forming techniques, Spheres

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE