Method for producing steel rolling bearing rings
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United States of America Patent
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Jan 7, 2003
Grant Date -
N/A
app pub date -
Feb 4, 2000
filing date -
Aug 4, 1997
priority date (Note) -
Expired
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Abstract
A method for producing steel rolling bearing rings, starting from a hot-rolled tube, the structure of which is similar to a spheroidized structure and from which rings of the same continuous length are hot-cut while supplying a lubricant and, after cooling, are further processed. The hot-cutting takes place at a temperature below the transformation temperature of the rolling bearing steel used but above 720.degree. C., with subsequent cooling in static air. From the blank ring a green or soft ring of a rolling bearing ring is produced with narrow tolerances of its shaped elements by an optimally timed multistage machining type of cold further processing operation, the main element of the cold further processing being a turning operation.
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