Patent ID: 7377696

Claim:
Device for controlling the contact pressure of backup rolls (SW) resting on work rolls, whose neck (WZ) is supported in roller bearings or journal bearings in a bearing support housing or the bearing chock of the rolls of a roll stand, the neck having a neck extension (ZA), which is supported in an axial support bearing formed as a radiax bearing (RA), the axial support bearing having a bearing housing (LG) is connected externally to the bearing support housing of the contact rolls or to the bearing chock (LS) of the backup rolls, comprising an intermediate housing (ZG), which is inserted into the bearing housing (LG) and cylindrically encloses the radiax bearing (RA), and a piston-cylinder unit (RB, SK) operatively arranged for adjustably displacing the intermediate housing in the bearing housing in the radial direction relative to the axis of the neck extension (ZA), wherein the piston-cylinder unit includes a piston (SK) arranged in a radial bore (RB) in the bearing housing (LG), the piston (SK) being connected with a pressure fluid via the bore (RB), whereby the piston (SK) applies a radial bending force to the neck extension (ZA) of the roll (SW).