| abstract |
The present invention is a transmission v-belt (1) that is provided with a core (4a), an adhesive rubber layer (4) in which at least a part of the core (4a) is embedded, and an expansion rubber layer (3) and a compression rubber layer (5) that are layered with the adhesive rubber layer (4) therebetween, and pertains to the transmission v-belt (1) wherein the rubber hardness of the expansion rubber layer (3) is less than the rubber hardness of the compression rubber layer (5), and the rubber hardness of the adhesive rubber layer (4) closer to the expansion rubber layer side than the core is less than the rubber hardness of same closer to the compression rubber layer side. |