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  • Spindle Taper Question

    Hello,
    I have a spindle that has a CAT30 taper. Does anyone know if this is interchangeable with NMTB-30 and/or V-flange 30 and/or BT-30?
    Thanks,
    Eric.

  • #2
    The actual size and angle of the taper is the same. There are differences in the "tang", e.g. NMTB has a straight tang at the end, the CAT has no tang. The flange and drive keys wll differ slightly, but can normally be modified if needed.

    I believe Cat and V-Flange are diffferent names for the same thing.

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    • #3
      Thank you!

      Thanks Big-Dipper. I want to outfit this spindle with a quick change collet chuck, sized to accept Ortlieb collets (which I have many of). I can only find the chuck with NMTB 30 taper shank. It looks like the CAT30 internal socket on the spindle has a recess for the straight tang you speak of. I'm not really worried about the drive keys, I'll modify accordingly.

      Thanks for sharing your knowledge,
      Eric.

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      • #4
        The BT40 has metric threads, all the same but different drawbars will set you up nicely.

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        • #5
          Thank you.

          Thanks guys for your help,.....much appreciated.

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