Originally Posted by Ghost0
Here is a link that gives lots of information about chain and sprocket dimensions.
Notes on Sprockets and Chains
But to answer your question I am pretty sure that we are the only ones that have a sprocket for a 5/8 shaft that fits a bicycle chain.
Haha! I book marked that sight last night in my futile searching till 5am..I'm pretty sure you're right about being the only ones that have it. I searched literally hundreds of sights