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  1. #1
    Join Date
    Nov 2008
    Posts
    2

    Cool CNC spindle repair

    I have a old "OYAA" milling center with bad spidle bearings. I have never attempted this big of a repair before and would like to know if this is a "over my head repair". If any one knows any repair service in the Norfolk, Va area that would do a repair like this, Please let me know. THANKS Mike C

  2. #2
    Join Date
    Jan 2005
    Posts
    15362
    Hi Mikecarter

    Post some photos not many people would know what this machine even looks like
    Mactec54

  3. #3
    Join Date
    Oct 2007
    Posts
    56

    Spindle

    Depends on the type of spindle? Some cartridge spindles req a high pressure hydraulic system to expand the retaining nuts.
    If the spindle just has bad bearings and the inner races have not spun on the main shaft then you probally you can rebiuld it yourself. You need to have bearing knowledge(adjusting the pre-load ect.. and equipment) Bearing warmer. Can be done with hammers but I am a prof and dont use them personely. Mark everthing!!! Clean, and use the PROPER amount of qaulity bearing grease. I don't know what type of spindle you have but ask the bearing manufacturer when you purchase the QAULITY bearings. Keep it CLEAN and always run a warm up routine. Slow FRW,REV then a little faster

  4. #4
    Join Date
    Feb 2007
    Posts
    1084
    Google a company called PBA, Precision Balancing and Analyzing
    They were the competition at my last day job. Not cheap though.

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