. .
  1. #1
    What sort of runout should one normally expect from a rolled Chinese ballscrew I wonder? I've been measuring the ones I recieved using a DTI on the round portion of the nut and am getting values of slightly over 0.1mm - but then how precise is the nut body??

  2. #2
    Given what it is that's a reasonable runout for the outside of the nut body, you shouldn't extrapolate this to be a true representation of screw runout.
    You think that's too expensive? You're not a Model Engineer are you? :D

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