Abrading – Machine – Rotary tool
Reexamination Certificate
2006-02-21
2006-02-21
Wilson, Lee D. (Department: 3723)
Abrading
Machine
Rotary tool
C451S342000, C451S363000, C384S134000
Reexamination Certificate
active
07001258
ABSTRACT:
A polishing jig of a hydraulic integral system is improved to increase efficiency. A polishing jig1for bearing for use in back-up roll of rolling mill including a shaft member2on which an inner ring104of a bearing100for use in back-up roll of rolling mill is fitted; and a pressure-oil chamber12operative in association with the feeding of a pressure oil into the shaft member2to protrude an outer circumferential part of the shaft member2radially outwardly, the polishing jig includes an inner-ring fixing portion16for axially fixing individual inner rings104of a plurality of the bearings100fitted on the shaft member2as axially arranged, wherein a plurality of the pressure-oil chambers12are formed internally of the shaft member2in correspondence to the plural bearings100fixed on the shaft member2.
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patent: 5443413 (1995-08-01), Pflager et al.
patent: 5804900 (1998-09-01), Taniguchi et al.
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patent: 55-26684 (1980-02-01), None
patent: 57-083351 (1982-05-01), None
Koyo Seiko Co. Ltd.
Ojini Anthony
Smith , Gambrell & Russell, LLP
Wilson Lee D.
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