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Slab milling cutter adapters.

Discussion in 'A BEGINNER'S FORUM (Learn How To Machine Here!)' started by Marcduper, Jul 18, 2017.

  1. Marcduper

    Marcduper United States Iron Registered Member

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    Good afternoon,

    I have a sweet Sheldon/Vernon Model Zero Horizontal mill. The main arbor is 1 inch. I recently came across a bunch of new and near new slab cutters with a 1-1/8" bore. Has anyone made adapters to fit a smaller arbor? If soon, what is the prefered material and any advice. Thanks.

    Marc
     
  2. kd4gij

    kd4gij United States Active User Active Member

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    It would be better to make or buy a 1 1/8" arbor.
     
    Charles Spencer and Bob Korves like this.
  3. Marcduper

    Marcduper United States Iron Registered Member

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    Sure, they are pretty hard to find. You have one?
    Marc
     
  4. Marcduper

    Marcduper United States Iron Registered Member

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    I do have a good length of 1-1/8 hydraulinc cylinder shaft to make one. Just asking.
     
  5. kd4gij

    kd4gij United States Active User Active Member

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    I don't have one. What is the taper of your arbor? And how long is it?
     
  6. Marcduper

    Marcduper United States Iron Registered Member

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    Good afternoon, The taper is a Brown and Sharp number nine. The arbor is a total of 14 inches.

    Thank you for your response. Marc
     
  7. benmychree

    benmychree United States John York H-M Supporter-Premium

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    For this sort of thing, I sometimes make a shouldered bushing with a key slot, then make a key oversized in height. For this application, I'd make two shouldered bushings for each end of the cutter.
    One wonders why this cutter would have a non standard arbor hole.
     
  8. Marcduper

    Marcduper United States Iron Registered Member

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    No sir, the hole is standard size 1-1/4. I made a mistake in my earlier posts. My arbor shaft is only 1 inch. Your thoughts on the shouldered bushings was my plan.

    I recap: I have slab milling cutters with a 1-1/4 hole size. Problem is that I only have a 1 inch arbor. Very sorry for the wrong information.

    Thanks
     
  9. benmychree

    benmychree United States John York H-M Supporter-Premium

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    No damage done! I have seen cutters with non standard holes, but very rare; metric sizes are another exception. I have not used a slab cutter in many years, did so more often when all I had was a #2 Brown & Sharpe universal of about 1906 vintage, have now upgraded to a later (about 1943) version with the all angle universal milling head, used mostly as a vertical attachment.
     
  10. Marcduper

    Marcduper United States Iron Registered Member

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    You should check out this little Sheldon /Vernon 0. It has nice gear box, variable speed, very tight and accurate. I do like squaring up parts with this machine. That is why I picked up the helical cutters.
     
  11. Marcduper

    Marcduper United States Iron Registered Member

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    WIN_20170719_16_08_14_Pro.jpg I try to get you a better pic.
     
  12. benmychree

    benmychree United States John York H-M Supporter-Premium

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    Looks pretty beefy! Proportioned for production work.
     
  13. Marcduper

    Marcduper United States Iron Registered Member

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    From what I understand, it came from Ohio. The place made car parts for Dodge. Notice the green color like the hot cars of the time. I ran an indicator tested this thing all over and nothing out of spec. Love it.
     
  14. benmychree

    benmychree United States John York H-M Supporter-Premium

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    The shop where I apprenticed had no vertical mill for several years until they bought a used #3 Cincinnati vertical, so most of my early experience was on their #4 Cincinnati universal horizontal, which was thoroughly used and abused, all attachments included --- So I learned the older ways, including slab milling.
     
  15. Silverbullet

    Silverbullet Active Member Active Member

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    I'm in the same boat, I own an atlas mill and have one arbor also . I bought a piece of 4140 16" x 2" . Ill be doing some turning on my logan , taper to morse number2 , then about 10" of arbor turned to 1 1/4" . The second will be 7/8" plus about ten spacers to fit , ill buy some thin ones to do gang mill . The one reason I bought it is to cut gears for my big drill press . The table and head lifts both need gears , ill make up a half dozen and sell a few to pay for the rest. Original gear from Rockwell is over $400.00 one gear . I'll eBay them for $100 free ship . Seems I remember seeing a #9 on eBay arbors for sale .
     

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