Method for the support of a rotating workpiece during grinding and a hydrodynamic steady rest
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United States of America Patent
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Feb 4, 2014
Grant Date -
Jul 22, 2010
app pub date -
Jul 3, 2008
filing date -
Jul 6, 2007
priority date (Note) -
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Abstract
In a method for the hydrodynamic support and centering of a rotating workpiece during grinding and a steady rest usable for this purpose the bearing to be supported is impinged upon by a contact pressure which changes in accordance with rotational speed from a minimum pressure when the shaft is started from a standstill, to a maximum value during the processing rotational speed. The steady rest has an opening of a transversebore in a central bore receiving a supply line by which a lubricant can be supplied as hydraulic fluid to the bearing. The method is particularly suitable for the processing of camshafts and crankshafts.
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