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Thanks for the feedback, and I really enjoy learning more history
of the N series and the comparisons you pointed out. Mine is a
1931 which was delivered to a utility company machine shop where
it seems to have seen limited use as well. Someone at the shop let
me know that it was going to be surplussed and that it had not
been run for at least 30 years. So, it is in great condition as
well. I recently modified it to upgrade from 3/4hp to 1.5hp, 3
Phase. The old motor needed re-winding and the cost was too much.
It's nice that the new motor has lifetime lubrication, which I'm
sure will outlive me as well.
It wish I had a larger spindle bore sometimes like your Heavy 10.
But, I can dog drive larger work pieces between centers if needed.
I will take a look at the Series S.
On 7/25/2020 2:07 PM, Louis via
Everything in your write-up looks fine to me.
I too have a model 'N' but a smaller 9x34 dating to roughly 1933.
I've owned mine now for 4 years and it's my go-to lathe for
My 9" has a heavier built headstock compared to other 9" South
Bends of the same era. The bed is also wider and has the same
cross section as my ~1944 Heavy 10. It also has the similar heavy
double walled apron and the cross feed and compound both have
adjustable tapered gibs. My research indicates that Model 'N's
were the more expensive commercial line lathes. During the Great
Depression South Bend cut out some of those more expensive
features to reduce the cost in some of their other lines.
My 9" sat unused for many decades and shows little wear. Although
the controls are slightly different, in practice they work similar
to the Heavy 10. Given how overbuilt it is, I expect it will
outlive me by many years.
Just for interest's sake, my Heavy 10 is also an unusual model, a
Series 'S' benchtop model. It's labelled as a 10L 487Z and has the
large bore spindle. However, it has the typical SB rear
countershaft not an undermount drive. The lathe is illustrated in
the 1941 South Bend catalog on page 41 along with the 487Z catalog