A method and a device is used for reducing vibrations on at least two
rotating elements, such as cooperating cylinders, which roll in opposite
directions while situated in contact with each other. At least one of the
elements has a surface protrusion that projects from an essentially
circular contour of an active lateral surface. A height of this
protrusion can be altered in a radial direction. A circumferential
position of the protrusion can also be altered, all in accordance with a
quality that characterizes a machine state or vibration.