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Re: Bearings don't fit (Drill rod) shafts ?
Bearing ID's are sized to fit SHAFTING, not nominal OD drill rod. Shafting tolerances are ALWAYS slightly undersized from the nominal. You can use shafting or sand down the drill rod a few thousandths, it's much easier to use the shafting such as this from McMaster Carr:
http://www.mcmaster.com/#precision-shafts/=g4qkqg
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Last edited by 45Auto : 06-02-2012 at 10:24.
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