Roller for feeding and conveying paper sheets

A paper-sheet feeding or conveying roller, comprising:

• a shaft;
• and
• a bi-layer roller material, which is formed of an inner layer provided on the shaft and an outer layer,
• wherein:
• the inner layer provided on the shaft is a foamed elastic layer,
• the outer layer provided on the foamed elastic layer is a non-foamed elastic layer,
• the foamed elastic layer is formed of a foamed elastic body of silicone-modified EPDM,
• the non-foamed elastic layer contains EPDM,
• an amount of silicon compound used in the silicone-modified EPDM, with respect to 100 parts by weight of EPDM, is 0.1 parts to 100 parts,
• the foamed elastic layer has a rubber strength (Asker C) of 10° to 50°, and
• the foamed elastic layer has elongation at break (JIS K 6249) of 550% to 670%.