chuck jaws

All discussion about lathes including but not limited to: South Bend, Hardinge, Logan, Monarch, Clausing and other HSM lathes, including imports

Moderators: Harold_V, GlennW

Lewayne
Posts: 40
Joined: Sun Feb 03, 2019 4:02 pm

chuck jaws

Post by Lewayne » Sun Feb 03, 2019 4:22 pm

I have a old South Bend 9" lathe. it came with a Skinner 6" chuck and the jaws to hold work from the outside.
I don't have the other inside jaws. Can those be obtained somewhere?

Russ Hanscom
Posts: 1556
Joined: Wed Mar 15, 2006 11:10 pm
Location: Farmington, NM

Re: chuck jaws

Post by Russ Hanscom » Sun Feb 03, 2019 5:15 pm

Probably not. Almost certainly not new. Try ebay and related. You may well need to buy a whole new chuck - which may not be much more expensive than just jaws.

User avatar
tornitore45
Posts: 1701
Joined: Tue Apr 18, 2006 12:24 am
Location: USA Texas, Austin

Re: chuck jaws

Post by tornitore45 » Sun Feb 03, 2019 6:26 pm

Depending on what you do with your lathe you may consider
If you only have one chuck is should be a 4 jaws independent
If you rather have only one scroll chuck is better to swing for a two pieces jaws rather then reversible. It gives you the option of using soft jaws.
On the other hand a plain scroll with 2 sets of jaws may suite fine.
Mauro Gaetano
in Austin TX

LIALLEGHENY
Posts: 138
Joined: Sat Jan 11, 2014 12:36 am
Location: Bohemia, NY

Re: chuck jaws

Post by LIALLEGHENY » Sun Feb 03, 2019 7:19 pm

Lewayne, Take your outside jaws and get a good set of measurements off of them....then look on Ebay. Wait long enough and eventually a set of jaws will show up. I was able to do this and find a set of jaws for a 12" chuck I had. On the other hand you may want to just purchase a good chuck with 2 piece jaws. That would allow you to not only reverse the jaws, but also use machinable jaws, which would be much more versatile.

Nyle

User avatar
SteveM
Posts: 6851
Joined: Mon Jun 27, 2005 6:18 pm
Location: Connecticut

Re: chuck jaws

Post by SteveM » Sun Feb 03, 2019 9:32 pm

Make some measurements and put up some pictures, preferably with the measurements on the picture.

I MIGHT have a set. There were some outside jaws in my dad's toolbox, and he sold off the South Bend 15 years ago,

Steve

earlgo
Posts: 1422
Joined: Sat Jan 29, 2011 11:38 am
Location: NE Ohio

Re: chuck jaws

Post by earlgo » Mon Feb 04, 2019 10:04 am

Finding a small enough chuck with 2 piece jaws may be a real challenge. The 6" 4 jaw chuck that came with my 12" Atlas weighs 8# and the 6" SHAR chuck with 2 pc jaws weighs 26#. Way too heavy for the Atlas.
You might try Small Tools in Euclid Oh. Last summer they had a skid load of Chinese 5" chucks with 2 pc jaws. I didn't get the price.
Small Tools Inc
26470 Lakeland Blvd
Euclid, OH 44132
1-800-821-2674
www.smalltools.com

You might also ask them if they have the missing SB jaws you are looking for. Good Luck
--earlgo
Before you do anything, you must do something else first. - Washington's principle.

User avatar
tornitore45
Posts: 1701
Joined: Tue Apr 18, 2006 12:24 am
Location: USA Texas, Austin

Re: chuck jaws

Post by tornitore45 » Mon Feb 04, 2019 10:50 am

You might try Small Tools in Euclid Oh. Last summer they had a skid load of Chinese 5" chucks with 2 pc jaws. I didn't get the price.
$185
Mauro Gaetano
in Austin TX

Lewayne
Posts: 40
Joined: Sun Feb 03, 2019 4:02 pm

Re: chuck jaws

Post by Lewayne » Mon Feb 04, 2019 11:45 am

SteveM check if you have a chance. I have a 7" chuck, set up for that operation, which I found on e bay cheap once. Its a bit big on my 9" lathe though.
I've been cleaning the rust off that one this weekend. It came that way and I never got around to cleaning it up. That one could use a new base plate as well.

User avatar
SteveM
Posts: 6851
Joined: Mon Jun 27, 2005 6:18 pm
Location: Connecticut

Re: chuck jaws

Post by SteveM » Mon Feb 04, 2019 12:48 pm

I have a 6" chuck with 2-piece jaws, and I don't think it's anywhere near 26 lbs. It works fine on my Atlas (as long as I don't hit reverse, then it can unscrew).

An option if you can't find the outside jaws is to find a chuck that is missing the INSIDE jaws.

As the outside jaws are generally used less, you will probably be able to get it cheap ("hey, I'll give you $50 for that chuck - it's missing the inside jaws!").

The nice thing is that you no longer will have to unscroll your chuck to swap jaws - you just need to swap chucks.

I have a chuck with only outside jaws just for that.

I have THREE four-jaw chucks, one with the jaws inside, one outside, and one with two of each. I haven't unscrolled a set of jaws in years.

Steve

User avatar
tornitore45
Posts: 1701
Joined: Tue Apr 18, 2006 12:24 am
Location: USA Texas, Austin

Re: chuck jaws

Post by tornitore45 » Mon Feb 04, 2019 2:23 pm

I haven't unscrolled a set of jaws in years.
I do not mind swapping jaws, but I do not relish swapping chucks.
I made chuck socket drivers to fit all my chucks. The drivers fit the 1/4" hex of my power screw driver.
Swapping or reversing jaws is a snap.
Mauro Gaetano
in Austin TX

User avatar
SteveM
Posts: 6851
Joined: Mon Jun 27, 2005 6:18 pm
Location: Connecticut

Re: chuck jaws

Post by SteveM » Mon Feb 04, 2019 5:02 pm

tornitore45 wrote:
Mon Feb 04, 2019 2:23 pm
I haven't unscrolled a set of jaws in years.
I do not mind swapping jaws, but I do not relish swapping chucks.
I made chuck socket drivers to fit all my chucks. The drivers fit the 1/4" hex of my power screw driver.
Swapping or reversing jaws is a snap.
I'm going to make one out of one of those power screwdrivers one of these days. Just need to find a working one at a garage sale because I'm too cheap to buy a new one.

Steve

Lewayne
Posts: 40
Joined: Sun Feb 03, 2019 4:02 pm

Re: chuck jaws

Post by Lewayne » Mon Feb 04, 2019 11:42 pm

So I cleaned up the chuck I have with the inside jaws. It actually is a Japanese chuck and is 6 1/2". I thought it was 7" IT cleaned up really nice so I guess I have a separate chuck for each application. maybe a pain to use sometimes but I only paid about 50 bucks for the larger one. I have a little 4" 4 jaw that I found cheap one time.
So the 6 1/2" has a 6" backer plate and I guess the bolts need to go into the outer ring of the chuck. not anywhere inside the back? am I right?
Someone has placed the bolt holes right on the edge of the backer plate and done a very poor job of it. There's not much metal under the bolts. Only a thin shoulder. Not a full round hole either. My feeling is it could come off the backer plate and become a loose cannon, so to speak.
Can I easily find a raw blank with the hole already threaded for my south Bend? I think the end is 1 3/8' with 8 threads per inch. (thats from memory though). I saw some in a catalog on line, but it was too late to call and clarify what all their numbers meant. If the threads were right it looked like I could turn a larger one down to 6 1/2 and place new holes in the right place.

Post Reply