Date   

Re: 14-1/2 spindle nose and taper

rlm_mcv
 

The new so called MT4.5 also is listed as a taper per foot of .6240, where South Bend lists most of their propitiatory tapers at .602 as per the factory South Bend literature I posted earlier.

It is a simple task to create this part with the lathe it will be used on.  It is a short engagement and the offset compound will produce it.  There is no need to wonder where to purchase this part.


On Saturday, May 28, 2022, 08:44:38 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:


I agree Paul the so called MT4.5 is a more recent made up designation created to explain what for years what was known as a proprietary taper.

On Saturday, May 28, 2022, 08:33:52 PM CDT, Guenther Paul <paulguenter@...> wrote:


In 50 years of machining i never heard or saw a 4 1/2 morse taper  1,2,3,4,5 yes

GP


On Saturday, May 28, 2022, 08:45:15 PM EDT, ken campbell <deltainc@...> wrote:


just for reference, i have a friend that has a heavy 10 ... but it has a d3 chuck, and we think it takes MT4.5 spindle centers.  it also has about a 1.25 inch spindle hole..  kind of a rare beast, apparently.  it is a qc with starwheel clutch engagement and has a taper attachment ! ...  and underdrive.  hmmm .

oh, we can't find a MT4.5 adapter anywhere, but at least he has the taper attachment to make some.

ken


Re: 14-1/2 spindle nose and taper

rlm_mcv
 

I agree Paul the so called MT4.5 is a more recent made up designation created to explain what for years what was known as a proprietary taper.

On Saturday, May 28, 2022, 08:33:52 PM CDT, Guenther Paul <paulguenter@...> wrote:


In 50 years of machining i never heard or saw a 4 1/2 morse taper  1,2,3,4,5 yes

GP


On Saturday, May 28, 2022, 08:45:15 PM EDT, ken campbell <deltainc@...> wrote:


just for reference, i have a friend that has a heavy 10 ... but it has a d3 chuck, and we think it takes MT4.5 spindle centers.  it also has about a 1.25 inch spindle hole..  kind of a rare beast, apparently.  it is a qc with starwheel clutch engagement and has a taper attachment ! ...  and underdrive.  hmmm .

oh, we can't find a MT4.5 adapter anywhere, but at least he has the taper attachment to make some.

ken


Re: 14-1/2 spindle nose and taper

Guenther Paul
 

In 50 years of machining i never heard or saw a 4 1/2 morse taper  1,2,3,4,5 yes

GP


On Saturday, May 28, 2022, 08:45:15 PM EDT, ken campbell <deltainc@...> wrote:


just for reference, i have a friend that has a heavy 10 ... but it has a d3 chuck, and we think it takes MT4.5 spindle centers.  it also has about a 1.25 inch spindle hole..  kind of a rare beast, apparently.  it is a qc with starwheel clutch engagement and has a taper attachment ! ...  and underdrive.  hmmm .

oh, we can't find a MT4.5 adapter anywhere, but at least he has the taper attachment to make some.

ken


Re: 14-1/2 spindle nose and taper

ken campbell
 

just for reference, i have a friend that has a heavy 10 ... but it has a d3 chuck, and we think it takes MT4.5 spindle centers.  it also has about a 1.25 inch spindle hole..  kind of a rare beast, apparently.  it is a qc with starwheel clutch engagement and has a taper attachment ! ...  and underdrive.  hmmm .

oh, we can't find a MT4.5 adapter anywhere, but at least he has the taper attachment to make some.

ken


Re: 14-1/2 spindle nose and taper

Bill in OKC too
 

That would probably be it. Centers are a lot cheaper than the sleeve would be, and they tended to regrind them to true the center back in the days before CNC machines when they needed the extra accuracy. Small centers are obviously cheaper, and easier to regrind. That's my story...

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)


Aphorisms to live by:
SEMPER GUMBY!
Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better



On Saturday, May 28, 2022, 02:13:16 PM CDT, eddie.draper@... via groups.io <eddie.draper@...> wrote:


There are a lot of lathe types that use a sleeve for the headstock centre, and in my experience, they are all shorter than the corresponding MT or close size of MT. Can anybody think of a reason why the lathe builders supplied a special sleeve instead of just making a special one piece centre that fits the lathe? Is it just so that you can replace the centre easily off the shelf after it has had a bash?


Eddie


Re: 14-1/2 spindle nose and taper

eddie.draper@btinternet.com
 

There are a lot of lathe types that use a sleeve for the headstock centre, and in my experience, they are all shorter than the corresponding MT or close size of MT. Can anybody think of a reason why the lathe builders supplied a special sleeve instead of just making a special one piece centre that fits the lathe? Is it just so that you can replace the centre easily off the shelf after it has had a bash?


Eddie


Re: 14-1/2 spindle nose and taper

rlm_mcv
 



A 14.5" uses a Morse 3 taper with a sleeve that on the outside is a special South Bend taper.  It is fairly easy to turn your compound and hand cut the special taper.  The angle is achieved when you have dial indicator reads zero when advancing the compound within the spindle.

I normally cut 2 when I have the compound set so I have a blank for future needs.

This is a subject that has been asked about many times in the past so more detailed thoughts are in the archives of this site.

On Saturday, May 28, 2022, 11:24:05 AM CDT, Rangelov <rangelov@...> wrote:


As said previously, I have looked at SouthBend documenation.  I have not found dimensions for my spindle, nor a spindle adapter listed.

My spindle gage line is about 1.313 inches, Morse Taper #4 has gage line of 1.231. Which means a paper thin center adapter or the center goes in too deep.  It has been a few years since I tried to fit a center.

I know there are other SouthBend 14-1/2 lathe owners here.  Anyone with the small spindle (2-1/4x6) nose?  How is your spindle configured?
  What center fits your spindle?  Does it have a sleeve?

Thanks for any real assitance, Dimitar


Re: 14-1/2 spindle nose and taper

mike allen
 

        Have you checked in over here ? There's alot of knowledge there along with a couple of folks that worked for South Bend  ( the real one , not the one that Grizzly sells )

        https://www.practicalmachinist.com/forum/categories/south-bend-lathes.25/

        animal

On 5/28/2022 7:55 AM, Rangelov wrote:
As said previously, I have looked at SouthBend documenation.  I have not found dimensions for my spindle, nor a spindle adapter listed.

My spindle gage line is about 1.313 inches, Morse Taper #4 has gage line of 1.231. Which means a paper thin center adapter or the center goes in too deep.  It has been a few years since I tried to fit a center.

I know there are other SouthBend 14-1/2 lathe owners here.  Anyone with the small spindle (2-1/4x6) nose?  How is your spindle configured?
  What center fits your spindle?  Does it have a sleeve?

Thanks for any real assitance, Dimitar


Re: 14-1/2 spindle nose and taper

rlm_mcv
 

A 14.5" uses a Morse 3 taper with a sleeve that on the outside is a special South Bend taper.  It is fairly easy to turn your compound and hand cut the special taper.  The angle is achieved when you have dial indicator reads zero when advancing the compound within the spindle.

I normally cut 2 when I have the compound set so I have a blank for future needs.

This is a subject that has been asked about many times in the past so more detailed thoughts are in the archives of this site.

On Saturday, May 28, 2022, 11:24:05 AM CDT, Rangelov <rangelov@...> wrote:


As said previously, I have looked at SouthBend documenation.  I have not found dimensions for my spindle, nor a spindle adapter listed.

My spindle gage line is about 1.313 inches, Morse Taper #4 has gage line of 1.231. Which means a paper thin center adapter or the center goes in too deep.  It has been a few years since I tried to fit a center.

I know there are other SouthBend 14-1/2 lathe owners here.  Anyone with the small spindle (2-1/4x6) nose?  How is your spindle configured?
  What center fits your spindle?  Does it have a sleeve?

Thanks for any real assitance, Dimitar


Re: 5 HP

DODGEM37@...
 

Cleaning up my garage and have a 5 HP motor to sell; 75. 230/460, 3 phase, 1800 RPM, 184T frame. Has 2 belt pulley. Pickup only in zip 21034 Darlington MD. If you can come by soon will throw in plenty of mixed fasteners, steel scrap, and electrical leftovers. Call 410-905-0432 if interested.




Re: 14-1/2 spindle nose and taper

George Meinschein
 

Dimitar,
Mine came with a tapered spindle sleeve that has a Morse #2 center in it. I just measured the sleeve OD at each end and the taper matches the 0.602" per foot spec for the inside of the 14.5" 2-1/4"x6 spindle. The South Bend literature indicates that the headstock spindle center should be a Morse #3. I held a Morse #3 up against my sleeve and by eyeball, it looks like that would work fine IF my sleeve was bored accordingly. So, my original adapter sleeve was probably lost and someone likely made my adapter sleeve in the past 80 years or so. Hope that helps.


Thanks, George Meinschein 150 Brittany Drive Freehold, NJ 07728 gmeinschein@... Cell#: 732-580-1736

Sent from ProtonMail mobile



-------- Original Message --------
On May 28, 2022, 10:55 AM, Rangelov < rangelov@...> wrote:

As said previously, I have looked at SouthBend documenation.  I have not found dimensions for my spindle, nor a spindle adapter listed.

My spindle gage line is about 1.313 inches, Morse Taper #4 has gage line of 1.231. Which means a paper thin center adapter or the center goes in too deep.  It has been a few years since I tried to fit a center.

I know there are other SouthBend 14-1/2 lathe owners here.  Anyone with the small spindle (2-1/4x6) nose?  How is your spindle configured?
  What center fits your spindle?  Does it have a sleeve?

Thanks for any real assitance, Dimitar
--
-George M.


Re: 14-1/2 spindle nose and taper

wmrmeyers@gmail.com
 

My Heavy 10L has a 2-1/4-8tpi spindle nose, and uses an adapter to take an MT3 taper. It may not be the same as yours, if yours is a 2-1/4-6 nose, but it should be close. If I can find the adapter, I could measure it for you. I picked sets of MT2 & MT3 taper reamers from Amazon a couple of years ago. The MT3 set I got is still for sale, $32, approximately, from Amazon. I've not had much luck cutting tapers myself yet, but these could help if you can get the correct OD and taper for a custom adapter. https://www.amazon.com/gp/product/B07KJB8NGG

I was told that the adapter is approximately an MT4-1/2, but couldn't swear to that. 

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.) 

A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)




On Saturday, May 28, 2022, 09:59:11 AM CDT, Andrei <calciu1@...> wrote:


Can't you make one, based on your measurements?


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of Rangelov <rangelov@...>
Sent: Saturday, May 28, 2022 10:55:39 AM
To: SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] 14-1/2 spindle nose and taper
 
As said previously, I have looked at SouthBend documenation.  I have not found dimensions for my spindle, nor a spindle adapter listed.

My spindle gage line is about 1.313 inches, Morse Taper #4 has gage line of 1.231. Which means a paper thin center adapter or the center goes in too deep.  It has been a few years since I tried to fit a center.

I know there are other SouthBend 14-1/2 lathe owners here.  Anyone with the small spindle (2-1/4x6) nose?  How is your spindle configured?
  What center fits your spindle?  Does it have a sleeve?

Thanks for any real assitance, Dimitar


Re: 14-1/2 spindle nose and taper

Andrei
 

Can't you make one, based on your measurements?


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of Rangelov <rangelov@...>
Sent: Saturday, May 28, 2022 10:55:39 AM
To: SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] 14-1/2 spindle nose and taper
 
As said previously, I have looked at SouthBend documenation.  I have not found dimensions for my spindle, nor a spindle adapter listed.

My spindle gage line is about 1.313 inches, Morse Taper #4 has gage line of 1.231. Which means a paper thin center adapter or the center goes in too deep.  It has been a few years since I tried to fit a center.

I know there are other SouthBend 14-1/2 lathe owners here.  Anyone with the small spindle (2-1/4x6) nose?  How is your spindle configured?
  What center fits your spindle?  Does it have a sleeve?

Thanks for any real assitance, Dimitar


Re: 14-1/2 spindle nose and taper

Rangelov
 

As said previously, I have looked at SouthBend documenation.  I have not found dimensions for my spindle, nor a spindle adapter listed.

My spindle gage line is about 1.313 inches, Morse Taper #4 has gage line of 1.231. Which means a paper thin center adapter or the center goes in too deep.  It has been a few years since I tried to fit a center.

I know there are other SouthBend 14-1/2 lathe owners here.  Anyone with the small spindle (2-1/4x6) nose?  How is your spindle configured?
  What center fits your spindle?  Does it have a sleeve?

Thanks for any real assitance, Dimitar


SouthBend 9C Lathe For Sale

Mark Davis <marksdavis@...>
 

For Sale:  SouthBend 9C Lathe, S/N 7166NCR8 See photos for details and accessories.  Little used for simple projects after inherited from family estate 20 + years ago. Needs cleanup but believed to be in generally good condition. Gear set and collet set believed complete. Located in El Cajon (San Diego) CA.  Purchaser responsible for moving/shipping.  Asking 700/00 Contact Mark Davis:  Phone/Text 619-871-3055 or E-mail: marksdavis@....


13” taper attachment for sale

Steven H
 

I have the components for a 13” South Bend lathe telescoping taper attachment for sale. There is some visible wear in the middle of the Acme screw, but I don’t have a mating nut so unsure how much wear. I am asking $995 which includes shipping in the Continental U.S. I am located in SE Michigan in case anyone would be interested in picking it up. See attached photos. 


OT - Harig / AB Spin-Indexer

Payson
 

Does anyone have use for motorized spin-indexer? It's like new as it was recently rebuilt by Harig. Older single speed motor.

Best to everyone,

Payson.


Re: 10k cross slide nut question

Stuart Wilby
 

nice spare part, shouldn’t be there but it could have prevented the range of the set screw by fouling on it before the side pressure on the slug becomes effective. Probably been there from the start.


Re: 10k cross slide nut question

jordie Field
 

A mistake by a rookie at the factory when it was manufactured and fixed with a spacer?????


On May 9, 2022, at 6:57 PM, George Meinschein via groups.io <gmeinschein@...> wrote:

Group,
I'm finally getting around to refurbing my 10k. Pulled the cross slide apart yesterday and found an extra part I think. After taking the set screw and side wedge pin out of the brass cross slide nut, I noticed something non-brass in the bottom of the threaded hole where the set screw goes. A few taps and a second wedge pin fell out of the threaded hole. It had been at the bottom of threaded hole with the pointed end facing towards the bottom of the hole. Doesn't seem to appear on the parts diagrams that I checked. What do you all think? Attached photo shows the parts oriented as they were when installed.


Thanks, George Meinschein 150 Brittany Drive Freehold, NJ 07728 gmeinschein@... Cell#: 732-580-1736

Sent from ProtonMail mobile



--
-George M. IMG_20220509_193754715.jpg


10k cross slide nut question

George Meinschein
 

Group,
I'm finally getting around to refurbing my 10k. Pulled the cross slide apart yesterday and found an extra part I think. After taking the set screw and side wedge pin out of the brass cross slide nut, I noticed something non-brass in the bottom of the threaded hole where the set screw goes. A few taps and a second wedge pin fell out of the threaded hole. It had been at the bottom of threaded hole with the pointed end facing towards the bottom of the hole. Doesn't seem to appear on the parts diagrams that I checked. What do you all think? Attached photo shows the parts oriented as they were when installed.


Thanks, George Meinschein 150 Brittany Drive Freehold, NJ 07728 gmeinschein@... Cell#: 732-580-1736

Sent from ProtonMail mobile



--
-George M.

501 - 520 of 106871