| 摘要 |
PROBLEM TO BE SOLVED: To provide a V-ribbed belt in which the heat resistance and cold resistance are improved to improve the durability of the belt in traveling under high-temperature atmosphere and under low-temperature atmosphere, and the propagation of a crack generated from the tip of a rib is prevented. SOLUTION: This V-ribbed belt 1 comprises a cover canvas 4 laminated on the surface, a core wire 4 buried in rubber along the belt longitudinal direction, and a plurality of rib parts extending in the circumferential direction of the belt. In this belt 1, the rib part 7 is formed of a cross-linked matter of ethylene-α-olefin elastomer, and a crack propagation preventive material 9 is interposed in a position closer to the core wire 2 between the core wire 2 and the rib part 7.
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