To enable a rapid roll exchange and simple preparatory work by reducing the number of parts of a roll stand.

In the roll stand for rolling lines for rolling the metallic tube, bar and wire which has at least three rolls with which the axial line of rolling is radiately enclosed and these rolls are respectively rotatable and adjustable in the radial direction with one roll shaft and bearing parts provided on both sides of the rolls, the bearing parts of the roll shaft 7 consist of ball bearings 13, these bearing parts are present in eccentric bushes 14, 15. At this time, these eccentric bushes 14, 15 are rotatably provided in the bores for bearings of a roll stand housing 2 which is indivisible and the rotational positions of these eccentric bushes 14, 15 are continuously changeable with an adjuster 17 and these eccentric bushes 14, 15 are fast held in all of the rotational position.