Old 11-02-21, 07:46 PM
  #25  
sincos
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The consensus seems to be trending towards a press-fit, which may well be right (and I can't actually think of any alternatives) but a good press fit connection shouldn't have splines like that. That only reduces the contact area and is a recipe for slipping and creaking. Also, the variation in the diameter argues against a press fit, which should have tighter tolerances, though it isn't clear whether that's a measurement precision issue or damage from the slings and arrows of outrageous fortune. Finally, that's a metal insert, in what appears to be a metal BB shell, where threads can be cut. Press-fits are for composite frame mfrs that are too lazy/cheap to use a metal insert. It's hard to imagine Panasonic to be guilty of such schlamperei so I wonder if we're missing something here.
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