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Sheldon 11" lathe question
On 22 May 2004 01:37:42 -0400, (DoN. Nichols)
wrote:
In article ,
Orrin Iseminger wrote:
[ ... ]
I'm sure Sheldon made several models of 11" inch lathe. That said, I
have an 11" and 13" and they both have a modified #5 Morse taper.
That is, if you put a regular #5 MT tool in the spindle, it would fit,
but stick out quite a long way.
Hmm ... is there a chance that this is actually a MT 4-1/2
taper? You can find it with the ASA tapers in _Mahinery's Handbook_ in
the table listing the "American National Standard self-holding tapers".
(Page 910 of 25th edition.)
They are pretty close to the same taper per foot, but the size differs
significantly.
MT taper/foot gauge diameter
4-1/2 0.62400 1.50000
5 0.63151 1.74800
The #5 MT Sheldon's will accomodate a 5C collet with the appropriate
adapter. I machined my own.
My 12x24" Clausing (Model 5418) currently has an L-00 spindle
with the MT 4-1/2 taper -- and it does hold 5C collets.
Enjoy,
DoN.
All the literature I've seen on the Sheldon says it is a modified #5
Morse taper. It has the #5 taper, but there is no reason for it to be
so long in a lathe, so it is a section of the small end of the #5 MT.
That's plenty big enough to accomodate a 5C collet adapter.
Orrin
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