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Re: Sprockets as Chain Tensioners?
On our first failed ball control system, we used a free-floating sprocket as a chain tensioner, just as you are describing. It worked great, but did fall off once or twice with a hard hit. I think it was a 24 tooth 25-chain sprocket that was in the middle of two 12 tooth sprockets spaced about 6 inches apart. So it was a small system, but it did work very well.
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