To attain and maintain the shape constraining connection with completely no play in the operating state after it is fitted by inserting an elastically excited wedge plate into a wedge-shaped receiving gap formed between coupling faces.

An elasticity excited wedge plate 8 is inserted into a receiving gap formed between coupling faces 5, 6 for the shape constraining connection with no play between the coupling faces 5, 6, and it is supported on the shoulder section 10 of a roll journal 2 by a compression spring 9 at the end section adjacent to the free end of the roll journal 2. At least one abrasion plate 3 is inserted between the hole 28 of a spindle sleeve 23 and the roll journal 2 at the position on the opposite side to the wedge plate 8 with respect to the rotation axis X-X. When the wedge plate 8 is inserted, the shape constraining join with no play between cooperatable joining elements is obtained, the shape constraining join with no play to the abrasion plate 3 is obtained, and the abrasion plate 3 is not quickly abraded.