Process for manufacturing miniature ball bearings
AssigneeMinebea Co., Ltd.
InventorRikuro Obara
Life of this patent
Estimating the term…
Abstract
A process for manufacturing miniature ball bearings that reduces material loss to improve manufacturing efficiency. The process consists of obtaining an inner and outer ring blank by cutting a first blank, forging the first blank to obtain a final blank, and separating the final blank to form an outer ring blank and an inner ring blank. The outer ring blank has an outer diameter of at most 13 mm. Cutting the first blank is performed by mechanically cutting and machining.
Claims14
A process for manufacturing miniature ball bearings to obtain an outer ring blank and an inner ring blank during such process, comprising the steps of:
- cutting a first blank from a bar shaped material by mechanically cutting and machining;
- forging said first blank obtaining a final blank having two edge faces;
- and
- separating said final blank obtaining an outer ring blank and an inner ring blank;
- wherein the outer ring blank has an outer diameter of at most 13 mm and an inner ring blank is disposed inside the outer ring blank.
A process for manufacturing miniature rolling bearings to obtain an outer ring blank and an inner ring blank, comprising:
- cutting a first blank from a bar shaped material by mechanically cutting and machining;
- forging said first blank obtaining a second blank;
- cutting said second blank obtaining a plurality of final blanks;
- and
- separating said plurality of final blanks obtaining an outer ring blank and an inner ring blank;
- wherein the outer ring blank has an outer diameter of at most 13 mm and the inner ring blank is disposed inside the outer ring blank.
Dependencies are inferred from the claim text.