elastomer roller chains Short pitch transmission precision roller chains A and B series : have past the ISO 9000 certificatio elastomer roller chainsShort pitch transmission precision roller chains A and B seriessimplex roller chain , single roller chain :Material of the Chains:plate: 40Mn,roller :20cpin: 20CrMnTi DIN ISO Chain No.ANSI Chain No. Pitch Toller diameterWidth between inner platesPin ...