Clamping joint between a spindle head and a roll stub

A clamping joint between a coupling box of a flexible-coupling drive spindle and a roll stub of a rolling mill roll wherein said roll stub fits into and is received in said coupling box and said roll stub and coupling box are formed with juxtaposed torque-transmitting surfaces defining a wedge-shaped gap between them on one side of an axis of the roll stub and coupling box, said clamping joint comprising a spring-loaded wedge plate fitted into said gap and forming a play-free shape-locking connection between said coupling box and said roll stub, and a wear plate received between a wall of a bore formed in said coupling box and said roll stub radially opposite said wedge plate with respect to said axis said wear plate having parallel surfaces in contact with said roll stub and said wall.