Die for molding roller

A die for molding a roller comprising:

• a first split mold and a second split mold which are capable of contacting and separating on parting surfaces opposed to each other;
• support portions capable of supporting an axial core member of the roller and closely contacting an outer circumferential surface of the axial core member at an appropriate surface pressure at the time of mold clamping;
• roller body molding surfaces that define a cavity between the axial core member and the roller body molding surfaces at the time of mold clamping;
• recesses located at both end portions of each of the support portions and extending along the parting surfaces, not in contact with the outer circumferential surface of the axis core member at the time of mold clamping, and penetrating the supporting portions;
• and
• the support portions, the roller body molding surfaces and the recess being formed in the first split mold and the second split mold.