Roll for a roll stand having an exchangeable roll ring and a divided roll body, the two parts of which each form a tensioning flange and are interconnected by a central tensile connection. An axial tensioning device is provided which comprises a threaded device for transmitting the forces acting between the two parts of the roll body and for their basic setting, a hydraulic tensioning device for tensioning the arrangement and a mechanical fixing device for fixing the hydraulically produced state of tension. According to the invention, the central tensile connection is limited to a central section of the length of the roll and it comprises the threaded device. The hydraulic tensioning device and the mechanical fixing device are arranged on the external circumference of the roll. At least one of the two parts of the roll body preferably forms a radial seat which interacts with the bore hole of the roll ring including a clearance for assembly and which can be spread apart by means of a wedge device provided in the tensile connection under the force transmitted by the tensile connection for removing the clearance for assembly. The wedge device can be formed by the inclined flanks of a thread inside the radial seat (radial seats).