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IndustryArena Forum > MetalWorking Machines > EMCO CNC Machines > EMCO Lathe > Emco PC Turn 55 backlash Z axis
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  1. #1

    Join Date
    Aug 2019
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    Emco PC Turn 55 backlash Z axis

    Hello everyone !
    I am doing a retrofit of an Emco PC Turn 55 and I see that in the Z axis it has a backlash of 0.02mm (In the X axis there is no backlash)
    Attached photo of the Z axis ball nut support.
    Does anyone know how to adjust the preload on this ball nut? There are three screws, two hex head and one slot.

    Hugo Gonzalez

  2. #2

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    Aug 2019
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    Re: Emco PC Turn 55 backlash Z axis

    Some photographs

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  3. #3

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    Re: Emco PC Turn 55 backlash Z axis

    Hello !

    Could someone send me a photo of the Z axis ballnut because I have doubts that the one I have is the original?
    That photo may be of the "PC Turn 50 or 55" or "Concept Turn 55"

    Thank you
    Hugo Gonzalez

  4. #4
    Community Moderator Jim Dawson's Avatar
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    Re: Emco PC Turn 55 backlash Z axis

    If it is not a double nut, then the only way to preload it is to install larger balls. Not an easy task. I can't see enough of the nut in the picture to say what it is.
    Jim Dawson
    Sandy, Oregon, USA

  5. #5

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    Re: Emco PC Turn 55 backlash Z axis

    The ballnut that I have installed on the PC Turn 55
    Is it the original or has it been changed?

  6. #6
    Community Moderator Jim Dawson's Avatar
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    Re: Emco PC Turn 55 backlash Z axis

    Sorry, I don't know
    Jim Dawson
    Sandy, Oregon, USA

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