Device for axial displacement of rolls in a rolling stand

A device for axial displacement of a roll in a rolling stand, the roll having an axis and a neck portion, the rolling stand defining a roll housing, comprising a chock mounted axially slidable in the roll housing, axially extending support means attached to said chock, radially inwardly facing guide means formed in said support means, a support piece mounted axially slidable in said guide means, a roll bearing adapted for supporting the roll mounted in said support piece, and a sliding carriage axially slidable in said guide means, said sliding carriage axially spaced from said support piece, a coupling means mounted in said sliding carriage, said coupling means adapted for coupling with the roll neck portion, and at least one hydraulic piston-cylinder assembly connected to said sliding carriage for axially displacing said sliding carriage, a deep-groove-type radial ball bearing mounted in said sliding carriage for receiving said coupling means, wherein said deep-groove-type radial ball bearing receives the roll neck and has a bearing bushing, said coupling means arranged on the side of said bushing facing away from the roll neck portion, said coupling means including another support piece connected to said bushing, said another support piece having coupling means engageable in an annular groove defined in the roll neck portion, and a sliding sleeve axially slidable over said another support piece, said sliding sleeve effecting a radial displacement of said coupling members.