Abstract: A device for adjusting the roller gap of superimposed rollers of a calender with upwardly and downwardly movable spindles suspended on both sides of the calender which extend through supporting means on lateral ends of roller bearings. Below each supporting means a spindle nut is adjustable relative to the pertaining supporting means. The distance between each spindle nut and the supporting means thereabove is adapted to be sensed. Each supporting means carries a feeler head of a proximity switch and a vertical guiding bar having guided thereon a marker adjustable by the respective spindle nut on the pertaining guiding bar in the longitudinal direction of the pertaining guiding bar.