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Mori Seiki manual lathe MH & MR differences? I thought only the MH had 3” spindle bores?

TheOldCar

Stainless
Joined
Jul 31, 2011
Location
Utah, USA
I finally got a “big” lathe :D:o.
Big to me, anyway.

Ad pics showed “MR-1500” on the bed casting, so I found brochures showing the spec differences between MS, MR and MH models.

All MR models show 2-3/64” spindle bore & 20.5” swing.
All MH models show 3” bore and 24” swing.

When I went to see the lathe in person, I was pleasantly surprised when I looked at the spindle bore. “That looks big!” :fight: Again, big to me anyway.

Tape measure showed 3”. I was very happy.
Heck, I can barely fit a jumbo pencil through the Monarch bores!!

I emailed Greer Machinery & they told me both have the same bore size. Was there updates? Everywhere I’ve looked online, including the original dealer brochure this lathe came with, says the MR-1500 comes with the 2-3/64 bore, not 3”.

Maybe the bed castings are the same and the early MH still said MR on the beds?
 
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