Caliber roll for rolling and manufacturing method of its roll main body.

摘要

A caliber roll for rolling, consisting of a roll main body (1) having a caliber (1a) on the outer circumference and provided with a shaft hole penetrating in the shaft central direction, and a roll shaft (2) inserted into the shaft hole of the roll main body (1), in which a compressive stress in the widthwise direction of the roll main body (1) is applied to the bottom of the caliber (1a). This compressive stress is applied by forming either the inner circumference of the roll main boy (1) or the circumference of the roll shaft (2) in a taper, and shrinkage-fitting or cold-fitting the roll main body (1) and the roll shaft (2), or by pressing the both end faces in the widthwise direction of the roll main body (1) by means of a pressing jig fixed to the roll shaft (2).