Abstract: The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between said bead components, and a rubber chafer positioned around at least a portion of each of said bead components and intended for contacting a rigid rim of a wheel, wherein said chafer comprises a self lubricating rubber composition, the self lubricating rubber composition comprising at least one rubber and from 1 to 50 phr of at least one additive selected from alcohols of formula I, esters of formula II, or amides of formula III wherein R1 and R2 are independently selected from C12-C36 alkyl, C12-C36 alkenyl, or C12-C36 alkadienyl.

Abstract: The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between said bead components, and a rubber chafer positioned around at least a portion of each of said bead components and intended for contacting a rigid rim of a wheel, wherein said chafer comprises a self lubricating rubber composition, the self lubricating rubber composition comprising at least one rubber and from 1 to 50 phr of at least one additive selected from alcohols of formula I, esters of formula II, or amides of formula III wherein R1 and R2 are independently selected from C12-C36 alkyl, C12-C36 alkenyl, or C12-C36 alkadienyl.

Abstract: The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between said bead components, and a rubber chafer positioned around at least a portion of each of said bead components and intended for contacting a rigid rim of a wheel, wherein said chafer comprises a self lubricating rubber composition, the self lubricating rubber composition comprising at least one rubber and from 1 to 50 phr of at least one additive selected from alcohols of formula I, esters of formula II, or amides of formula III wherein R1 and R2 are independently selected from C12-C36 alkyl, C12-C36 alkenyl, or C12-C36 alkadienyl.

Abstract: The invention relates to pneumatic tires with a focus on pneumatic tires primarily intended for use in off-the-road service at relatively slow vehicular speeds, and to large truck tires, aircraft tires and agricultural tires and therefor not primarily focused on, and in one aspect intended to be exclusive of, passenger tires and particularly smaller passenger tires, wherein the elastomer composition of the treads, and at least two additional components, of such tires are of natural rubber rich rubber compositions composed, based upon the elastomers of the rubber compositions, of at least 45, alternately at least 75 weight percent cis 1,4-polyisoprene natural rubber. For this invention, the natural rubber rich treads and at least two additional natural rubber rich rubber components of such tires contain rubber reinforcing carbon blacks comprised primarily of high reinforcing, small particle size, carbon blacks.