Cylinder or roller having a cylinder or roller body which can be adjusted in the transverse direction to be in-register

摘要

The invention relates to a cylinder or a roller having a cylinder or roller body which can be adjusted in the transverse direction to be in-register. The invention is based on the object of providing a cylinder or a roller, in particular for guiding webs through web-fed printing machines, whose cylinder or roller body can be detached from the shaft with few manipulations, allows smooth displacement and positioning on the shaft and can be fixed reliably on the shaft with few manipulations. According to the invention, the object is achieved in a cylinder or roller body, in which the end disc is mounted on both sides in each case with a centrally arranged bore on the respective shoulder of the shaft, essentially due to the fact that the bore in the end discs consists of a first - outer - part of greater diameter and a second - inner - part of smaller diameter, that a bearing bush, arranged in the inner part of the bore, together with the assigned shaft shoulder, forms an axial plane bearing in each case, and that a friction coating is embedded in each case in the outer part of the bore and is expandable in the radial direction under the influence of a compression force acting axially - which can be applied to the friction coating by a clamping ring and clamping screws. <IMAGE>