Abstract:The work of this paper was focused on the effect of reinforcement, cure system and plasticizer on properties of vulcanized butadiene-isoprene rubber resilient material. The result showed that the resilient material had better mechanical property reinforced by the carbon black N330 or N220 than carbon black N770, according to the specific surface. With the addition of 0. 8 to 1. 3 parts sulfur, the resilient material had desirable characteristics at - 40 to +60℃. The hardness and modulus of resilient material can be adjusted by adding of plasticizer. Furthermore, the property of the resilient material and the operational performance on flexible bearing were compared,the result showed that the shear properties at -40 to +60℃ and compress properties of the resilient material could represent the swing properties and compress properties of flexible bearing.