Quote:
Originally Posted by chris31
McMaster has it listed as $50 for 72inches with a tolerance of +0, -.0005. I could find 60inches for less than $15 with a tolerance of +-0.0015. What do you need and do you have the ability to turn it down yourself if it will save you $35?
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a total tolerance of 0.003" is junk for the application Adam is looking for.
To reasonably expect a shaft to fit into a bearing you need +0 -0.001ish or so. So basically precision ground. Anything else is going to be a PITA. You can't reliably (and concentrically) turn 0.0015" off a 20"+ long shaft, so you basically need to use emory cloth and sand it.