Diamond Chain produces two types of chains designed specifically to allow for the lateral deviations that standard roller chain can't handle.
Diamond Power Curve chain is manufactured with a pin that is both smaller in diameter and slightly longer than in the pin in standard ASME/ANSI roller chain. This modification to the design allows for extra clearance between both the pin and the pushing allowing the chain to flex from side to side.
Diamond's Tuf-Flex roller chain is designed for shaft or sprocket misalignment. Tuf-Flex chain can handle up to four inches of lateral displacement in every four feet of chain length and up to eight degrees of axial twist. Tuf-Flex provides extra durability and unusual flexibility to meet the strenuous service demanded of heavy-duty construction machinery.