Roll for paper-making machine

A roll in a paper making machine that has adjacent rolls for transferring a web member to, winding the web member around and receiving the web member from said roll, said roll is a hollow perforated roll rotatably mounted on a bearing housing, the adjacent rolls being arranged relative to said hollow perforated roll such that contact points between the web member and said hollow perforated roll are defined on said hollow perforated roll, said hollow perforated roll comprising:

• a hollow interior, an inner circumferential surface and a center;
• a cylindrical stationary center shaft extending in an axial direction through said center of said hollow perforated roll, said cylindrical stationary center shaft having a perforated outer circumferential surface;
• at least two fins extending in said axial direction and mounted on said outer circumferential surface of said center shaft, said at least two fins having outer edges spaced from said inner circumferential surface of said hollow perforated roll
• whereby said at least two fins comprise two fins adapted to be circumferentially located adjacent to the contact points when said hollows perforated roll is used in the paper making machine;
• wherein said center shaft has a hollow interior communicating with said outer circumferential surface thereof;
• radially extending disc-shaped fins mounted on said outer circumferential surface of said center shaft perpendicular to the axis of said center shaft, said disc-shaped fins having outer circumferential edges spaced from said inner circumferential surface of said hollow perforated roll;
• and
• a damper provided within said hollow interior of said center shaft.