| abstract |
An endless single V-grooved power transmission belt having a tension section; a cushion section; and a load-carrying section disposed between the tension section and cushion section; and the belt containing a sulfur-cured elastomeric composition comprising 100 parts of a rubber derived from 25 to 100 parts by weight of natural rubber; 0 to 75 parts by weight of a second rubber selected from the group consisting of polychloroprene, synthetic polyisoprene, epichlorohydrin, acrylonitrile rubber, hydrogenated acrylonitrile rubber, styrene-butadiene rubber, styrene-isoprene rubber, isoprene-butadiene rubber, styrene-isoprene-butadiene rubber, 1,4-trans-polybutadiene, chlorosulfonated polyethylene, alkylated chlorosulfonated polyethylene, trans-polyoctenamer and mixtures thereof from 1 to 30 parts by weight per 100 parts by weight of total rubber (phr) of a polybutadiene adduct of maleic acid anhydride; and from 5 to 50 phr of fibers distributed throughout the elastomer composition. |