| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling roll meeting a request for improving reliability, and a rolling machine using the same.SOLUTION: A rolling roll 3 includes: a taper portion 9 decreasing a diameter from one end 10 side to the other end 11 side, a shaft 4 made from metal; a ring 5 formed with a through-hole P having a shape corresponding to the taper portion 9, fitted with the taper portion 9 by the through-hole P, and made from ceramic; a flange 6 fixed to the shaft 4 at a position separated from the ring 5 toward the other end 11 side; and a disc spring 7 arranged between the flange 6 and the ring 5. Consequently, the ring 5 can be pressed on the taper portion 9 by the disc spring 7, so that the idling of the ring 5 is suppressed, and the reliability of the rolling roll 3 can be improved. |
