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Internal Grinding FAQs

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Problems in Internal Grinding:
Bell mounted hole
Over travel of wheel.
Reduce over travel of wheel from hole. About one half the wheel surface should still remain in the hole
  Spindle loose check for axial play.
Tapered hole   Be sure wheel head is parellel with table traverse.
Hole out of round. work may have been distorted in clamping it or the rotating fixture may be out of balance . Heating of roughing out may have distorted. Loose the clamp before grinding & tighten them up again.