Rotary chains were developed mainly for chain drive applications involving extremely large loads or particularly adverse operating conditions. Chains of the type are particularly resistant to violent shocks, wear and intense operating conditions, and have therefore enjoyed increasing success in an array of applications recently.
Generally, rotary chain dimensions are standardized under ISO 3512, ANSI B 29.10 and DIN 8182. One significant heavy duty cranked link chains benefit of rotary chains is that their links are constructed to the same design, making it simpler to lengthen or shorten the chains when necessary. They have another advantage over regular roller chains – all links are at the mercy of the same degree of wear.
ELITE rotary chains with cranked links are fitted with cotter pins. The chain plates are available in naturally hardened metal or special tempered metal, according to the anticipated mechanical load. Chains subjected to incredibly high loads are fitted with induction-hardened pins, producing them not only quite challenging, but also giving them the highest possible degree of surface hardness.