Abstract: A roller body for treating a web-shaped material, comprising a shell and profiles which are arranged on an inner circumferential area of the shell, distributed about a rotational axis of the roller body, and together with the shell form channels for a thermal treatment fluid which extend at least substantially axially The shell forms an outer wall and the profiles form side walls of the channels respectively The side walls are each connected to the shell by means of a connecting seam produced by a material fit; and the side walls of immediately adjacent profiles exhibit an inclination of less than 90° to the shell in their cross-section up to the connecting seam such that they point away from each other from the connecting seam outwards.

Abstract: A roller for thermally treating web-shaped media, comprising a roller body which is rotatable about its central longitudinal axis, and peripheral bores introduced in axial parallel in the roller body, for conveying a heating medium, wherein other axially parallel balancing bores are formed in the roller body in addition to the peripheral bores for the heating medium, said balancing bores running from an end face of the roller body towards the center of the roller body.

Abstract: A roller for thermally treating web-shaped media, comprising a roller body which is rotatable about its central longitudinal axis, and peripheral bores introduced in axial parallel in the roller body, for conveying a heating medium, wherein other axially parallel balancing bores are formed in the roller body in addition to the peripheral bores for the heating medium, said balancing bores running from an end face of the roller body towards the center of the roller body.