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morse taper collet chucks

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  • morse taper collet chucks

    Does anyone have an opinion as to the MT2 ER32 and ER40 collet chucks that are sold on ebay? I am also considering a Beall collet chuck. The main differences between the 2 styles that I see is that the Beall will allow through the spindle stock mounting and the taper mounted chucks are cheaper. Is the spindle mounting of the Beall chuck inherently more accurate than a morse taper mounted chuck? I recently purchased a South Bend 9" Junior lathe that I have cleaned and repainted and am now purchasing tooling for it. The lathe will be used for hobby work.

    Kurt




  • #2
    You can also roll your own. It's not too hard to make an ER adapter for threaded spindles. ER-32 is probably closer to your through-hole capacity, but it can be done for ER-40 as well. In all liklihood the additional capacity of the ER-40 will hardly come into play since you can turn larger stock in a regular 3 or 4 jaw. The ER-32 is lower cost unless you happen to have the larger collets already or need them for another application.

    .
    "People will occasionally stumble over the truth, but most of the time they will pick themselves up and carry on" : Winston Churchill

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    • #3
      Is this http://www.bealltool.com/products/tu...olletchuck.php what you mean when you say "Beall chuck"?

      If so, it looks like it accepts ER-32 or ER-40 collets. I'm not sure what other ER-style collet chucks you may be referring to, but having the ability to pass long work through the spindle is extremely handy on occasion.

      As far as inherent accuracy: the less overhang, the better. A collet that fits into the spindle taper itself is likely going to be the most accurate. But, that will somewhat limit capacity.

      Another thing to consider is the range-of-diameter capability of ER collets, a highly desirable feature not available in, say, Morse taper collets that are single-size.
      ----------
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      • #4
        Thanks for the information guys. Yes, that's the Beall collet chuck I was referring to. Here is the MT2 taper collet chuck on ebay http://cgi.ebay.com/ws/eBayISAPI.dll...MEWA:IT&ih=022

        Kurt

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        • #5
          In part it depends on what you are holding. I use collets to hold milling cutters in my 9x20 lathe. Since the shanks of the cutters are ground to precise size I don't need to cover much range. So to get minimum runout and maximum holding power I use morse taper collets like Little Machine Shop #1609.

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          • #6
            Man that chuck's a good buy at that price I have one of those exactly and I paid £45 sterling for it.you can't go wrong with that even at double the price Alistair
            Please excuse my typing as I have a form of parkinsons disease

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            • #7
              Originally posted by Alistair Hosie
              Man that chuck's a good buy at that price I have one of those exactly and I paid £45 sterling for it.you can't go wrong with that even at double the price Alistair

              I decided to go with this http://cgi.ebay.com/ws/eBayISAPI.dll...MEWN:IT&ih=022 With the morse taper, I can also use the chuck on my wood lathe. Once I get some experience using my lathe, I'll try making a threaded chuck like TGTool. Where did you get the outer ring? I suppose I will be able to use the ring off of the morse taper chuck I purchased.

              Kurt

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              • #8
                Search for er32 nut and you'll find them for typically $12-$20.

                E.g.: eBay 110226820637 or 290151070878
                John
                Location: Newtown, CT USA

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