Abstract: Disclosed is a tire stud comprising a stainless steel body with a flange and a blind hole and further comprising a spike installed in said hole, wherein the cross-sectional shape of the hole is different from the cross-sectional shape of the spike at least at one of: the opening, the lower surface of the spike, and a depth between the opening lower surface of the spike; whereby only protrusions of the spike are attached to the side wall of the hole with friction joints where the cross-sectional shape of the hole is different from the cross-sectional shape of the spike.

Abstract: Disclosed is a tire stud comprising a stainless steel body with a flange and a blind hole and further comprising a spike installed in said hole, wherein the cross-sectional shape of the hole is different from the cross-sectional shape of the spike at least at one of: the opening, the lower surface of the spike, and a depth between the opening lower surface of the spike; whereby only protrusions of the spike are attached to the side wall of the hole with friction joints where the cross-sectional shape of the hole is different from the cross-sectional shape of the spike.

Abstract: A method for installing a stud in a tyre. The method includes identifying a stud hole for the stud in the tyre; imaging the vicinity of at least the stud hole, whereby information is received about the pattern in the vicinity of the stud hole, and using the received information to determine [i] the stud type suitable for the stud suitable in the stud hole and/or [ii] the suitable stud orientation of the stud suitable in the stud hole. The method includes providing a stud and installing it in a stud hole. The stud type of the stud is the same as the suitable stud type of a stud suitable in the stud hole; and/or the stud is installed in the stud hole in such a way that the main direction of the stud is parallel with the suitable stud orientation. Further a tyre studded by the method.

Abstract: A method for installing a stud in a tyre. The method includes identifying a stud hole for the stud in the tyre; imaging the vicinity of at least the stud hole, whereby information is received about the pattern in the vicinity of the stud hole, and using the received information to determine [i] the stud type suitable for the stud suitable in the stud hole and/or [ii] the suitable stud orientation of the stud suitable in the stud hole. The method includes providing a stud and installing it in a stud hole. The stud type of the stud is the same as the suitable stud type of a stud suitable in the stud hole; and/or the stud is installed in the stud hole in such a way that the main direction of the stud is parallel with the suitable stud orientation. Further a tyre studded by the method.

Abstract: Invention relates to a roll cover and a covered roll for paper, board, finishing and tissue machines. More specifically it relates to a roll particularly used in calendar which roll comprises a metal roll body and a cover of a composite material on it. The cover has at least three layers which comprise polymer matrix and fiber reinforcement the material of the being different at least in successive layers.

Abstract: Invention relates to a roll cover and a covered roll for paper, board, finishing and tissue machines. More specifically it relates to a roll particularly used in calendar which roll comprises a metal roll body and a cover of a composite material on it. The cover has at least three layers which comprise polymer matrix and fiber reinforcement the material of the being different at least in successive layers.