Patent ID: 8663078
Filing Date: 2014-03-04
Classification: B31F,D21G,F16C

Abstract:
1. A roller for treating a paper web, the roller comprising: a central fixed shaft linked to a fixed frame on both ends thereof; low-friction elements mounted on said shaft; a tubular skirt mounted on said low-friction elements, said tubular skirt being coaxial with the shaft, said tubular skirt being free to rotate about a longitudinal axis of said shaft and being subject to vibrations during said rotation; and a means for dampening said vibrations, said dampening means being provided and acting between said tubular skirt and said shaft, said dampening means comprising a pair of disks, each of said disks being solid to a respective base of said shaft and coaxial with said shaft, each of said disks having a portion in contact with two frictioning rings which are connected with said tubular skirt, wherein said two frictioning rings are respectively provided by a flange and a counter-flange connected with said tubular skirt by means of a bearing made by an external ring and an inner ring, said tubular skirt being mounted on said external ring of said bearing and said flange being mounted on said inner ring of the same bearing.