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IndustryArena Forum > CNC Electronics > Spindles / VFD > ISO30 ER32 chuck question
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  1. #1
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    81

    ISO30 ER32 chuck question

    I am looking to get a spare ISO30 chuck. My existing ones have smooth tapers with a groove. Some of the ones I'm looking at have a notch in the taper, pic attached. The spindle is an HSD 951. Could someone shed some light on the smooth taper vs notched alternatives.
    Attached Thumbnails Attached Thumbnails 51OU6nbrjkL._SL1000_.jpg  
    cuttingedgecnc.co.uk
    info@cuttingedgecnc.co.uk

  2. #2
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    Re: ISO30 ER32 chuck question

    hy, notch type is there to assure that the contact is done in both areas : upper and lower; this is a trick to avoid uneven contact, at least theoretical

    downside is that using a notch type for too long will generate a specific wear inside the spindle, and may lead to fly-out issues if a non-notch/classical toolholder is used

    i would gently advise you to stick with the cone types that you allready use; also, you may inspect your toolholders, especially the ones that you use most, so to have a clue about your current contact area; if it is not the same among different toolholders, then ... take a guess kindly

    ps1 : if you wish 4 something extra, then use nikken's 3point contact, with elastic taper, but this would be too much for a mere er32
    ps2 : bearing nuts ...
    Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg

  3. #3
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    81

    Re: ISO30 ER32 chuck question

    Sound advice, I have ordered more of the chucks I have. Thanks for the info.
    cuttingedgecnc.co.uk
    info@cuttingedgecnc.co.uk

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