Quote:
Originally Posted by Jared
I don't beleive the sprocket wearing is the main cause of chain stretch. Our elevator and drive chains both stretched over the course of the season, and in both cases, the black anodize coating wasn't scratched off or worn at all. Also, I've noticed that replacing old chain with new chain causes a pretty large increase in tension.
It appears to me that he chain stretch comes predominantly from the fit between the pins and the bushings loosening up over time. If you play with a new and old length of chain, you can feel the difference in flexibility.
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With #25 chain, you have a good deal of links even in relatively short run.
.0001" of wear per pin quickly adds up.