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Unknown Collet type

Discussion in 'QUESTIONS & ANSWERS (Get Help Fast Here!)' started by knutselaar0, Aug 4, 2017.

  1. knutselaar0

    knutselaar0 Belgium Iron Registered Member

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    Does anyone know this kind of collet?
    It has 10 ° angle,( 20 ° taper)
    The ER collets are 8° ( 16° taper)
    er collet.jpg
     
  2. Karl_T

    Karl_T United States Active User Active Member

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    Look up TG type collets, TG100 most common, also TG75 and TG150
     
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  3. knutselaar0

    knutselaar0 Belgium Iron Registered Member

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    Taper angle of TG collets is 4.175° , i a need 10° angle
     
  4. kd4gij

    kd4gij United States Active User Active Member

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    What is the diameter od and id.
     
  5. knutselaar0

    knutselaar0 Belgium Iron Registered Member

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    I just want to know if these collets exist
    Because i have a spindle with a 20° taper and i need collets for the spindle
     
  6. 4gsr

    4gsr Global Moderator Staff Member H-M Supporter-Premium

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    Sounds like your spindle is set up for using a Warner Swasey turret lathe style collet. See the next thread for a a couple of examples. I think you need to look at your spindle bore a little closer behind the angle. We NEED some dimensions of your spindle so a collet can be found. Again, the samples in the other thread is the configuration you need to look for in your spindle. The thru bore of your spindle will probably be the same size as the tail end of the collet you are looking for.

    Ken
     
  7. knutselaar0

    knutselaar0 Belgium Iron Registered Member

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    I think the spindle is from a internal grinder, no spindle bore
    The collets are not for myself, but for a friend
    The taper is 20° (10° angle), biggest diameter is about 24 mm

    spindle.jpg
     
  8. 4gsr

    4gsr Global Moderator Staff Member H-M Supporter-Premium

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    Now we are getting more information. That helps. Thank you kindly.
     
  9. kd4gij

    kd4gij United States Active User Active Member

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    look at 4c and 5c collets. They have 10 deg taper
     
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  10. knutselaar0

    knutselaar0 Belgium Iron Registered Member

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    It's an old round belt driven internal grinding spindle
    Made by GMN R50680
    I've modified the inner taper to a taper for ER25 collets

    IMG_2057.JPG
     
    Last edited: Aug 8, 2017
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