George I thought of the roller bearing delema too, but have you ever heard of needle bearings?? They are like little logs that the crank can ride on, only metal and not wood, and what you do is kinda glue them in place with greese as you assemble it. If you have the race thing that holds them front to back they stay in ok. And you have to make sure you use enough needles so they don't get twisted in there at all. Not as slippery as a ball bearing, but still better than a flat surface I bettya.
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