Patent ID: 7050226

Claim:
A play-free rotary mounting for a drive roll having two end faces held on stop surfaces in the axial direction on a cylindrical body comprising: a body having a stop surface; V-shaped annular grooves with an opening angle and vertex diameters provided at least in one of the end faces of the drive roll and the stop surface located opposite the end faces; V-shaped bearing shells having a vertex diameter, an opening angle and an opening width with approximately identical opening angles and approximately identical leg length inserted into the V-shaped annular grooves in at least in one of the end faces and the stop surface, the vertex diameters of the annular grooves differing from the vertex diameters of the V-shaped bearing shells, and balls with a diameter matched to the opening width of the bearing shells inserted into the bearing shells wherein at least one stop surface can be adjusted in the axial direction in order to clamp the drive roll.