Patent ID: 8293351

Claim:
A seamless vulcanized semiconductive rubber belt having a volume resistivity of 10 4 to 10 12 ohm-centimeters (Ωcm), wherein about the molecular orientation ratio correction value MOR-C of the vulcanized semiconductive rubber belt on any single straight line extended in the belt circumferential direction orthogonal to the width direction of the belt, the molecular orientation ratio correction value being represented by the following expression (1): MOR−C =(( t c ×( MOR− 1)/ t s )+1 (1) wherein MOR represents the molecular orientation ratio, t c represents the correction thickness (in millimeters, mm), and t s represents the thickness (mm) of the belt, the following expressions (2) and (3) are satisfied: ( a−b )/ c< 0.64 (2), and a/b< 1.87 (3) wherein a represents the maximum value of the molecular orientation ratio correction value MOR-C, b represents the minimum thereof, and c represents the average.