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  1. #1
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    Default which milling arbor

    can some one please tell me which spindle arbor a kondia turret mill would have. its a mill the style of a bridge port. is it a R8? is this called another name.

  2. #2
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    Default

    Without a picture of the spindle no one can tell you what it will be..

    Could be R8 could be ISO30 or ISO40.

  3. #3
    Dave J Guest

    Default

    Here is a chart with measurements to find out what yours is.
    Machine Tool Shanks (Tapers)

    Dave

  4. #4
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    Default

    ok that makes sense. ill get a photo. and measure it up from the chart.
    thanks

  5. #5
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    Default

    it look like a iso 30. not shore until i measure it thou

  6. #6
    Dave J Guest

    Default

    If it's a ISO 30 it will have 2 drive blocks either side of the spindle taper hole, or if they are missing it will have 2 milled flats either side with M6 taped holes for them.

    Dave

  7. #7
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    Default

    There is an outside chance it could be an ISO40..

  8. #8
    Dave J Guest

    Default

    The ISO 40 taper should be easy to pick up over the smaller tapers because it has a larger gauge line measurement of 1.750 inch or 44.45mm, where as the R8 and the ISO30 could be confused because they both look to have a gauge line measurement of 1.250 inch or 31.75mm.
    If you measure the inside of the end of the spindle and then look up in there at the ground taper, the ISO 30 has a long taper compared to the short R8.
    Either way there is plenty of tooling around for both, but you will find the R8 to be cheaper.

    Dave

  9. #9
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    Default

    The drawbar thread would be a give away as well..

    AFAIK R8 uses a 7/16 thread..

    ISO30 uses 1/2W or 1/2 UNC or 12mm coarse or 12mm fine..

  10. #10
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    Default

    My Kondia FV1 is fitted with an NT/ISO 30 taper in the spindle.
    The ER chucks are M12 drawbar, and I have some BEL DA 180 chucks with imperial drawbar, not sure if 1/2 in or 3/8 in.

    John.

  11. #11
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    Default

    thanks john. ill measure the arbor up tonight. i think thats the one in the machine im talking about. does this mean a r8 wont fit if it takes an iso30? its a machine at work. theres a about zero chance of them buying any tooling, i think they would prefer to get rid of the machine.

  12. #12
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    Default

    To save having to measure to much when you get to work stick your finger up the centre of the spindle, run it around the ID,if you feel a little lump it will be an R8,if theres no lump measure the ID of the opening at the bottom of the spindle,if its 1 1/4" its a 30,if its 1 3/4" its a 40.

  13. #13
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    Default um this isnt looking so good

    thanks pipe clay. that's a great no mucking around method . i just have a bad feeling the cutter i just bought wont fit.

    Attachment 164383

  14. #14
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    Default

    With that being an R8 hopefully you will feel the lump inside the bore.

  15. #15
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    Default

    Quote Originally Posted by azzrock View Post
    thanks pipe clay. that's a great no mucking around method . i just have a bad feeling the cutter i just bought wont fit.
    Boring and facing head? My machine is R8 if it needs a new home

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