Rolling roll, rolling ring, rolling mill, and rolling roll assembling method

A rolling roll comprising:

• a shaft, rotating around an axis and has a first end that is connected to an output shaft of a rolling mill;
• a tubular sleeve member mounted to a portion of the shaft on the side of a second end;
• a rolling ring formed from a hard material, and fixed to an outer circumference of the sleeve member;
• an inner circumferential support part is disposed an outer circumferential side of the sleeve member;
• wherein the rolling ring is supported by the sleeve member via the inner circumferential support part;
• a pressing member pressing the side surface of the rolling ring that faces the second end side disposed on the second end side of the rolling ring, and
• a pressing mechanism, urging the pressing member toward the first end side, and is disposed on the second end side of the rolling ring;
• the pressing member and the pressing mechanism press the rolling ring toward the one end side, thereby fixing it.