ANSI roller chain is the most widely used power transmission chain in the U.S. market. Nitro ANSI roller chain is fully compliant to ANSI B29.1 industry standards. On average Nitro Chain is 23% stronger than the minimum ANSI requirements. There are 4 different ANSI chains to choose from, which are standard, cottered, heavy duty and super premium. All ANSI chains are available in single and multi-strand options. Nitro Roller Chains have a reputation for being a tough, durable and reliable chain product that will keep your machines running! View our roller chain size charts for easy comparison of the specifications between all chain sizes.