We are offering ansi standard roller chain. Single and multiple strand tsubaki standard 80th series roller chains conform to the ansi (american standard institute) and are interchangeable with other chains conforming to ansi standards. The tsubaki 80th series roller chains celebrate tsubaki's 80 year history of constantly improving quality and customer satisfaction. dimensions-mmchain no. Ansi no. Pitch proller dia.rwidth between roller link plates wrs25^*256.353.303.18rs35^*359.5255.084.78rs41*4112.707.776.38rs40*4012.707.927.95rs50*5015.87510.169.53rs606019.0511.9112.70rs808025.4015.8815.88rs10010031.7519.0519.05rs12012038.1022.2325.40rs14014044.4525.4025.40rs16016050.8028.5831.75rs18018057.1535.7135.72rs20020063.5039.6838.10rs24024076.2047.6347.63 dimensions-mmchain no. Ansi no. Pitch proller dia.rwidth between roller link plates wrs25^*256.353.303.18rs35^*359.5255.084.78rs41*4112.707.776.38rs40*4012.707.927.95rs50*5015.87510.169.53rs606019.0511.9112.70rs808025.4015.8815.88rs10010031.7519.0519.05rs12012038.1022.2325.40rs14014044.4525.4025.40rs16016050.8028.5831.75rs18018057.1535.7135.72rs20020063.5039.6838.10rs24024076.2047.6347.63 dimensions-mmchain no. Average tensile strengthkn kgfmaximum allowable load kn kgfapprox. Mass kgmnumber of links per unitrs25^*4.71 480 0.64 65 0.14480rs35^*11.3 1, 1502.16 220 0.33320rs41*11.8 1, 2002.26 230 0.41240rs40*19.1 1, 9503.63 370 0.64240rs50*31.4 3, 2006.37 650 1.04192rs6044.1 4, 5008.83 900 1.53160rs8078.5 8, 00014.7 1, 5002.66120rs100118.0 12, 000 22.6 2, 3003.9996rs120167.0 17, 000 30.4 3, 1005.9380rs140216.0 22, 000 40.2 4, 1007.4968rs160279.0 28, 500 53.0 5, 40010.1060rs180370.0 37, 700 60.8 6, 20013.4554rs200471.0 48, 000 71.6 7, 30016.4948rs240686.0 70, 000 99.0 10, 10024.540