Method for the support of a rotating workpiece during grinding and a hydrodynamic steady rest

摘要

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.