10EE Spindle taper

For those of you who may care, the spindle taper of the Clausing 10EE is a
number 12 Jarno taper. I discovered this trying to help resolve Iggy's lathe
issues. So perhaps some of you may know of a source for 12 Jarno to MT, 5C
collet adapters and a test bar in anticipation of Iggy's request. Jarno
tapers are identified by a taper of .6" per foot and numbered in 1/8" at the
major diameter like 12 x .125 = 1.500" major diameter.
Steve
Reply to
Steve Lusardi
Loading thread data ...
Steve, I will call Clausing today to find out for sure.
Thanks a lot for your help.
i
Reply to
Ignoramus25423
Well, Steve, as the saying goes.. it couldn't have happened to a nicer guy.
Options will likely be expensive as far as having the convenience of being able to use 5C collets.. replace the spindle, have the spindle recut and reground, or fabricate an accurate adapter for 5C collets.
If one had the capabilities to fabricate adapters, they might bring a handsome price.
Ig's intentions may have been to see how accurately the machine is set up, and quantify any wear, but much of that is unimportant if the lathe is capable of making quality parts, which it very likely is, if there are no signs of major wear or damage.
Reply to
Wild_Bill
Steve, whyn't you ping Ned Simmons? He supplied some filament transformers when I helped a friend overhaul a 10EE several years ago. Ned is a major source of 10EE smarts and parts.
Bob Swinney
For those of you who may care, the spindle taper of the Clausing 10EE is a number 12 Jarno taper. I discovered this trying to help resolve Iggy's lathe issues. So perhaps some of you may know of a source for 12 Jarno to MT, 5C collet adapters and a test bar in anticipation of Iggy's request. Jarno tapers are identified by a taper of .6" per foot and numbered in 1/8" at the major diameter like 12 x .125 = 1.500" major diameter. Steve
Reply to
Robert Swinney
Do you mean Iggy's Clausing uses the same Jarno taper as a Monarch 10EE? Someone was selling new 5C adapters for 10EEs on ebay. They're also available from Royal, but not cheap.
Reply to
Ned Simmons
I'm a little confused here. Just did a search for "Clausing 10EE" lathe and came up with nothing. Wasn't Monarch the maker of the 10EE?
Garrett Fulton
Reply to
Garrett Fulton
I got off the phone talking to Clausing. The findings are as follows:
1) Outside spindle taper is LO (which I knew) 2) Inside spindle taper is "MT3 with bushing", the OD of bushing is of unknown taper and Clausing does not know anything about the OD of bushing.
So, I think that I will return the MT5 test bar that Steve L so generously lent me, and will try to find some other way of testing this lathe.
i
Reply to
Ignoramus25423
Yup. Clausing made a 100 and 200 iirc.
Wes
Reply to
Wes
Garrett, I believe Monarch bought Clausing, as well as Lodge & Shipley and recently South Bend. The 10EE is Clausing and Monarch both. I believe it is the same machine. The SB 10 lathes use MT3 spindles. The 10EE is a heavier machine and therefore seriously doubt the MT3 spindle taper. Iggy, I also have an MT3 test bar and could send you that. Please accurately measure the major diameter of the taper and I will bet you $ to doughnuts it is 1.500". The number 12 Jarno taper is very close to an MT 4.5, but not MT3. Steve
Reply to
Steve Lusardi
I believe that Clausing has been owned by 600 group for some time and I'm just about certain that Clausing never made a 10EE model let alone the Monarch 10EE. For reference:
formatting link
Monarch does appear to own Lodge & Shipley:
formatting link
South Bend now appears to be owned by LeBlond:
formatting link
I also suspect that Clausing meant that Iggy's Clausing lathe used a MT3 dead center in an adapter that was mounted inside the spindle nose. If it has an L0 spindle it must be a 14" lathe (6900, 1500, or?) or maybe one of the Colchester series.
Mike
Reply to
Mike Henry
L0 taper, 13" swing, according to Clausing, my lathe uses a reducting bushing of unknown OD to reduce spindle to MT3.
i
Reply to
Ignoramus25423
What is the ID of spindle tube?
Wes -- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller
Reply to
Wes
Is this useful?
formatting link
Wes
Reply to
Wes
Wes, Yes, it is useful, but Iggy must accurately measure the spindle. I believe his 10EE has a L00 spindle, not an L0, which is why my MT5 test bar does not fit. Measuring the nose diameter will resolve this. Jarno and MT tapers are close but not the same. If he has a 1.5" nose, he has a 12 Jarno. Ultimately, he needs the MT3 adapter, but if he wants 5C collets, he will need a 12 Jarno to 5C as well.
Iggy, Do you have a mating MT 3 adapter? Steve
formatting link
Reply to
Steve Lusardi
Steve, I have a Clausing Colchester. I will double check for the adapter, but I believe that I do not have it.
i
formatting link
Reply to
Ignoramus25423
Iggy, What is and model and size of the lathe again? Also please measure the Nose OD and ID at the end. Steve
formatting link
Reply to
Steve Lusardi
Ig, you could also call Royal and ask them. You may not want to buy the taper adapter from them (especially after you hear the price), but they have lots of accurate info on spindle tapers for lathes still in production and those long out.
Pete Keillor
Reply to
Pete Keillor
Clausing Colchester Master, 1967 model. Four year older than myself. 13 inch swing. I will measure this stuff tonight.
i
formatting link
Reply to
Ignoramus25423
Four inches longer than yourself?
Reply to
Jim Stewart
Yes. The old trick used to be that smart manufacturers provided purchasing agents with "specs." I think I still have a lot of them from companies that sold to schools and colleges back in the 60's and 70's. Using the supplied specification, one could spec out a government buy with a minimum of effort.... and that is why a gazillion Monarch 10EE machines were sold to the government.
Several other manufacturers (like Hendey and Sidney) got wise to the idea and met the government spec provided by Monarch (that cut the 10EE out from the rest of the herd). Now, if we could only find that old spec for a "10 Inch Tool Room Lathe".......
Reply to
Gene

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.