Schaublin 102N - Why the extended spindle ? (photos)
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    Default Schaublin 102N - Why the extended spindle ? (photos)

    Bought the below recently. Any idea what the extended spindle tube is all about ? Maybe it had a pneumatic closer at one time ?

    img_1817.jpg img_1818.jpg

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    Its voor placing the lever operated draw bar

    Peter

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    Quote Originally Posted by Milacron View Post
    Bought the below recently. Any idea what the extended spindle tube is all about ? Maybe it had a pneumatic closer at one time ?

    img_1817.jpg img_1818.jpg
    What Peter said.

    Plus - as with the French HBX-360-BC you sold me - any lathe that uses separate extensions can readily support swapping for other extension options without disturbing the spindle, proper.

    I'd rate that approach as "a feature, not a bug", and one that adds value.


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    Nice looking lathe!!

    My rusty Graziano Sag 12S project has a similar tube at the end and I’m thinking it’s probably for a collet closer.


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    Quote Originally Posted by rpseguin View Post
    ..similar tube at the end and I’m thinking it’s probably for a collet closer.
    Well "not only". All of my collet systems are nose-actuated in one way or another. I don't think I've even seen a manual rear-closer fitted to a Cazeneuve. Powered is another story.

    But many of the "modern" squared-off lathes - the HBX-360 among them as well as the Graziano and this particular family of Schaublin - need an extension tube simply so one can find the spindle bore to feed a rod or bar of stock into without having to take the end cover(s) off. The extension also limits whip, protecting other goodies in the area, though a supplementary support may still be needed when stock is long.

    The "working" spindle itself otherwise ends somewhere deep inside.

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