Date
1 - 4 of 4
SB Special #3mt
|
Richard
Dose any one have the Dim's. for SB's #3MT special taper that you could and
would share?
I have a 11" SB with a #3MT taper head and would like to make a new dead
center for it.
The morse taper sleeve that came with the lathe has a 0.051 Per Inch taper
and that is the same for the standard #3MT.
The only difference that I can see is the large end of the sleeve is 1.015"
in diameter and the standard #3MT dead center that I have is 0.948" in
diameter.
Do I have the Dim's right or am I missing something here?
Richard T. Northern New York USA
|
|
|
|
Jim B <btdtrf@...>
SB used a propritary taper which has the same RATE of TAPER as a MT3
but, except for the 9" Workshop, is not a a MT3. There were two major diameters depending on the collet/spindle bore size. See: http://www.wswells.com/data/spec_sheet/5224.pdf Although this data is too late for the 11" lathe I believe the 11" followed the same logic. Thus your large end would have been either 1.629 (5C) or 1.325" Note that there was also a spindle which was MT-4 (13" small bore) Jeff Beck at tools4cheap.com has just started to carry spindle adapters from the 1.629 to MT3 or MT2. Jim B. --- In southbendlathe@..., "Richard" <rftuper48@...> wrote: could and would share? I have a 11" SB with a #3MT taper head and would like to make a newdead center for it. The morse taper sleeve that came with the lathe has a 0.051 PerInch taper and that is the same for the standard #3MT. The only difference that I can see is the large end of the sleeveis 1.015" in diameter and the standard #3MT dead center that I have is 0.948" in diameter. Do I have the Dim's right or am I missing something here?
|
|
|
|
Jim B <btdtrf@...>
Doing some more searching on Steves site, I find that the last year
11" was mentioned 1941, and the bore was 7/8. So, more than likely the spindle data on the later lathes will not work. Now the 7/8 bore is very close to the 10K bore. Waht happens If you use a standard MT3 center. Usually these protude a bit to far out of the 9/10K Jim B. --- In southbendlathe@..., "Jim B" <btdtrf@...> wrote: MT3 but, except for the 9" Workshop, is not a a MT3.new dead center for it.The morse taper sleeve that came with the lathe has a 0.051 PerInch taper and that is the same for the standard #3MT.The only difference that I can see is the large end of the sleeveis 1.015" in diameter and the standard #3MT dead center that I have
|
|
|
|
Richard
Jim;
toggle quoted messageShow quoted text
When I use the standard MT3 center it goes in to far to be of any use. I was thinking that if I make one with the large end 1.015 to 1.020" it may be what I am looking for. Richard T. Northern New York USA
----- Original Message -----
From: "Jim B" <btdtrf@...> To: <southbendlathe@...> Sent: Thursday, October 23, 2008 4:10 PM Subject: [southbendlathe] Re: SB Special #3MT
-------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.175 / Virus Database: 270.8.2/1741 - Release Date: 10/23/2008 7:54 AM
|
|
|