ROLLER MANUFACTURING APPARATUS

摘要

PURPOSE:To properly cool a chuck in such a case that a roller is supported by the chuck through a journal part and to bake the roller under temp. conditions uniform and stable as a whole. CONSTITUTION:An inside plug 21 is preliminarily fitted in the hollow part 19 of a chuck 15. When the inside plug 21 is provided to the deep part of the hollow part 19, cooling water is circulated to the deep part of the chuck 15 to cool the chuck. When the inside plug 21 is moved toward the inlet of the hollow part 19, cooling water is circulated only in the part close to the inlet. Therefore, when the position of the inside plug 21 is regulated, the cooling effect of the chuck 15 can be adjusted to the optimum value.