Metal working – Method of mechanical manufacture – Process for making bearing or component thereof
Patent
1996-02-12
1997-08-26
Schwartz, Larry I.
Metal working
Method of mechanical manufacture
Process for making bearing or component thereof
29898069, 298991, 29463, 2281145, 228 23, 228113, 384 49, 384445, 384491, B21D 5310, B23P 1100
Patent
active
056599560
ABSTRACT:
Hollow ball bearings of improved strength and uniformity are produced by causing identical first and second hemispheric units to rotate at different speeds in facing relationship upon a common axis, and forcing the hemispheres into aligned contact. The frictional heat generated by such contact melts the material adjacent the open rim of each contacting hemisphere. The molten material is distributed by centrifugal force about the interior of the hemispheres. The speeds of the two hemispheres are then equalized with attendant cooling and re-solidification of the molten material, thereby producing a hollow sphere.
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Braginsky Mikhail
Dashevsky Leon
Butler Marc W.
Rainer Norman B.
Schwartz Larry I.
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