... ANSI 120 A series simplex roller chains(24A-1R)1)material : 40mn2)pitch : 38.1mm3)plate thickness : ... heavy series2)motorcycle chains :415,420,428,428H,520,530,630,25,25H3)short pitch conveyor roller chain ... attachments:A-1,A-2.K-1,K-2,SA-1,SA-2,SK-A,SK-24)double pitch ... transmissions v& conveyor chains :2040,2042,2050,2052,2060,2062,2060H ...