"H" SERIES ROLLER CHAINS
ANSI “H” Series chains are dimensionally identical to ANSI standard chains except that the sideplates are thicker. The heavier side plates provide some additional fatigue resistance. They are primarily intended for applications where occasional shock loads are likely to cause fatigue failures in the chain. Whilst there is an increase in tensile strength, the wear life of the case hardened pins remains the same as for standard chain.
Simplex “H” series chains operate on standard ANSI sprockets. Multiple strand “H” chain require non-standard ANSI sprockets because of the thicker side plates.