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Recent content by ibrown44

  1. ibrown44

    Geometric tolerancing of bearing holes to avoid bearing misalignment

    Tmoose - thanks for sending those links. The catalogs I had been looking at previously were missing this level of detail. I am curious that GMN and INA use runout for tolerancing the shoulder surface, whereas I noticed SKF uses perpendicularity and total runout for the same surface. Why the...
  2. ibrown44

    Geometric tolerancing of bearing holes to avoid bearing misalignment

    3DDave – thanks the reviewing the drawing. Tmoose – This is a mature design. We have a very talented machinist who always makes things correctly, so the issue has arisen because we are going to be out-sourcing manufacturing of these parts now, and therefore we need to ensure that the parts...
  3. ibrown44

    Geometric tolerancing of bearing holes to avoid bearing misalignment

    3DDave – thanks for the clear answer. With that answer in mind, the follow-up question is for geometric tolerancing of these bearing holes (following ASME Y14.5 - 2018 ). Given the above, I think I need to specify: • Tolerance on bearing hole diameters • Tolerance on location of bearing hole...
  4. ibrown44

    Geometric tolerancing of bearing holes to avoid bearing misalignment

    BACKGROUND: We are in the process of updating our CAD drawings to enable us to out-source production of various components. Many of our components have a similar issue: we have a shaft that runs through two steel ball-bearings pressed into a machined piece of aluminum. As per various bearing...

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