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Message: <blockquote data-quote="OldMachinist" data-source="post: 25276" data-attributes="member: 437">Okay because of the way my mind works I wanted to dig a little deeper into roller chains. As stated roller chain strength can vary greatly. I looked at size 80 steel chains as an example and found working loads from 1,700 lbs up to 4,100 lbs because of different grades of steel and design. Also I looked at if there much difference between using a fully riveted chain and a master link connected chain. Again in size 80 using a chain in the mid range a loop with a master link was rated at 1,733 working load and the fully riveted chain at 2,600 lbs. In size 100 the difference was 2,727 lbs. vs. 4,091 lbs. The price difference between the lowest rated chain and the highest was only a couple of dollars per foot. Anyway this really just to satisfy my curious mind and is not meant to start any controversy.</blockquote>