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  1. #1
    Join Date
    Dec 2009
    Location
    Riverside, Rhode Island
    Posts
    9

    Default Bucket pin clearance

    i am in the process of machining four steel bosses to be welded to a used but in very good condition excavator bucket.The pin size is 2.50 inches in diameter and each pin (two) will rotate in two of the new bosses "with grease". What should be the final running clearance ? I expect to bore ,weld ,then line ream. Thanks for any help. MrH

  2. #2
    Join Date
    Jan 2009
    Location
    Whitehorse, Yukon
    Posts
    279

    Default

    Typically you're shooting for 2-3 thou per inch clearance, so you would be lookin at 6-10 thou. On a 2.5" pin I would machine to 2.450" then do the install. Afterwards, line bore to a finished diameter of 2.508" to 2.512" or so.
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