开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. SouthBendLathe
  2. Topics

Birmingham self-centering 4-jaw chuck

Dave Rygmyr
 

Hello everyone, and thanks for letting me join. I wish I had a SB but I don't, I was gifted a Birmingham YCL-1126BD lathe and I have to make do. I was hoping to get a self-centering 4-jaw chuck for it. Birmingham is no help. I've found a number of them, even on Amazon, but none of the photos or descriptions show the back of the chuck or indicate the connection type and frankly I'm lost. The 3-jaw on there now uses little L-shaped hooks or whatever you want to call them to hold it in place. I would sincerely appreciate any assistance you guys might be able to give me.
?
Dave
 

开云体育

how does the chuck mount ? maybe a pic of the spindle mount ?


animal

On 1/13/25 5:32 PM, Dave Rygmyr wrote:

Hello everyone, and thanks for letting me join. I wish I had a SB but I don't, I was gifted a Birmingham YCL-1126BD lathe and I have to make do. I was hoping to get a self-centering 4-jaw chuck for it. Birmingham is no help. I've found a number of them, even on Amazon, but none of the photos or descriptions show the back of the chuck or indicate the connection type and frankly I'm lost. The 3-jaw on there now uses little L-shaped hooks or whatever you want to call them to hold it in place. I would sincerely appreciate any assistance you guys might be able to give me.
?
Dave
 

开云体育

Most small Chinese lathes in the range of 11-12 inches use a D1-4 spindle



On Jan 13, 2025, at 17:39, Dave Rygmyr via groups.io <davidry@...> wrote:

?
Hello everyone, and thanks for letting me join. I wish I had a SB but I don't, I was gifted a Birmingham YCL-1126BD lathe and I have to make do. I was hoping to get a self-centering 4-jaw chuck for it. Birmingham is no help. I've found a number of them, even on Amazon, but none of the photos or descriptions show the back of the chuck or indicate the connection type and frankly I'm lost. The 3-jaw on there now uses little L-shaped hooks or whatever you want to call them to hold it in place. I would sincerely appreciate any assistance you guys might be able to give me.
?
Dave
 

It sounds like a camlock attachment.?? You will need to count the number of the camlocks you have and the diameter of the camlocks and the diameter of the outside of the spindle that the chuck gets centered on.? These will help you find out which standard camlock you have on your lathe.
?
After You need to buy a backing plate for your lathe then machine it to fit your chuck and your lathe.?? Backing plate diameter needs to match (roughly) the diameter of the chuck you want.
?
Here is a good video on how to make the backplate ?
?
If you buy a premade backing plate you can start from 23.35 minutes into the video.
?
 

开云体育

the specs are probably online


On 1/14/25 7:02 AM, sapark123321 via groups.io wrote:

It sounds like a camlock attachment.?? You will need to count the number of the camlocks you have and the diameter of the camlocks and the diameter of the outside of the spindle that the chuck gets centered on.? These will help you find out which standard camlock you have on your lathe.
?
After You need to buy a backing plate for your lathe then machine it to fit your chuck and your lathe.?? Backing plate diameter needs to match (roughly) the diameter of the chuck you want.
?
Here is a good video on how to make the backplate ?
?
If you buy a premade backing plate you can start from 23.35 minutes into the video.
?
Dave Rygmyr
 

开云体育

I've not been able?to find the specs online. Here's a photo showing the connection:

From: [email protected] <[email protected]> on behalf of mike allen via groups.io <animal@...>
Sent: Tuesday, January 14, 2025 1:16 PM
To: [email protected] <[email protected]>
Subject: Re: [SouthBendLathe] Birmingham self-centering 4-jaw chuck
?

the specs are probably online


On 1/14/25 7:02 AM, sapark123321 via groups.io wrote:
It sounds like a camlock attachment.?? You will need to count the number of the camlocks you have and the diameter of the camlocks and the diameter of the outside of the spindle that the chuck gets centered on.? These will help you find out which standard camlock you have on your lathe.
?
After You need to buy a backing plate for your lathe then machine it to fit your chuck and your lathe.?? Backing plate diameter needs to match (roughly) the diameter of the chuck you want.
?
Here is a good video on how to make the backplate ?
?
If you buy a premade backing plate you can start from 23.35 minutes into the video.
?
 

开云体育

Can you take the chuck off and take a picture of the spindle nose?

On Jan 14, 2025, at 16:35, Dave Rygmyr via groups.io <davidry@...> wrote:

?
I've not been able?to find the specs online. Here's a photo showing the connection:

<image.png>
From: [email protected] <[email protected]> on behalf of mike allen via groups.io <animal@...>
Sent: Tuesday, January 14, 2025 1:16 PM
To: [email protected] <[email protected]>
Subject: Re: [SouthBendLathe] Birmingham self-centering 4-jaw chuck
?

the specs are probably online


On 1/14/25 7:02 AM, sapark123321 via groups.io wrote:
It sounds like a camlock attachment.?? You will need to count the number of the camlocks you have and the diameter of the camlocks and the diameter of the outside of the spindle that the chuck gets centered on.? These will help you find out which standard camlock you have on your lathe.
?
After You need to buy a backing plate for your lathe then machine it to fit your chuck and your lathe.?? Backing plate diameter needs to match (roughly) the diameter of the chuck you want.
?
Here is a good video on how to make the backplate ?
?
If you buy a premade backing plate you can start from 23.35 minutes into the video.
?
 

https://www.tools-n-gizmos.com/specs/Lathe_Spindle_Mount.html

HTH!

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

Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
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.
Expect in one hand, expectorate in the other. See which one gets full first.



On Tuesday, January 14, 2025 at 06:35:04 PM CST, Dave Rygmyr <davidry@...> wrote:


I've not been able?to find the specs online. Here's a photo showing the connection:

From: [email protected] <[email protected]> on behalf of mike allen via groups.io <animal@...>
Sent: Tuesday, January 14, 2025 1:16 PM
To: [email protected] <[email protected]>
Subject: Re: [SouthBendLathe] Birmingham self-centering 4-jaw chuck
?

the specs are probably online


On 1/14/25 7:02 AM, sapark123321 via groups.io wrote:
It sounds like a camlock attachment.?? You will need to count the number of the camlocks you have and the diameter of the camlocks and the diameter of the outside of the spindle that the chuck gets centered on.? These will help you find out which standard camlock you have on your lathe.
?
After You need to buy a backing plate for your lathe then machine it to fit your chuck and your lathe.?? Backing plate diameter needs to match (roughly) the diameter of the chuck you want.
?
Here is a good video on how to make the backplate ?
?
If you buy a premade backing plate you can start from 23.35 minutes into the video.
?
 

?
This one does not have the fingers like yours.??
?
Could the chuck be threaded on the spindle and the fingers are there should you reverse the lathe too fast to keep the chuck from spinning off?
 

Looks like a threaded chuck with a set screw against the threads to prevent unscrewing when the lathe is reversed. The chuck may be stuck. Do not use the back gears to lock the spindle. You may break teeth.?
If it is a threaded chuck, place the spindle in "neutral" so that the chuck and spindle turn free. Chuck up a large diameter bolt like 1/2-3/4" (12mm +) and use an impact wrench in reverse to break the chuck free.??

Dennis

--
Dennis
western NY, USA
 

Instead of the impact wrench, try hanging a weight off the end of a big wrench clamped on that bolt, and give it a shot of your favorite penetrating oil. I've successfully used both WD-40 and PBBlaster for that. I wasn't? in a hurry. Took a couple of days. I'd spray it every time I walked past it.?

Bill in OKC?

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

Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
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.
Expect in one hand, expectorate in the other. See which one gets full first.



On Thursday, January 16, 2025 at 09:16:05 AM CST, Dennis LaMonica via groups.io <dennislamonica@...> wrote:


Looks like a threaded chuck with a set screw against the threads to prevent unscrewing when the lathe is reversed. The chuck may be stuck. Do not use the back gears to lock the spindle. You may break teeth.?
If it is a threaded chuck, place the spindle in "neutral" so that the chuck and spindle turn free. Chuck up a large diameter bolt like 1/2-3/4" (12mm +) and use an impact wrench in reverse to break the chuck free.??

Dennis

--
Dennis
western NY, USA

 

开云体育

Don't know whether your lathe has plain or rolling element bearings.? On a couple of ocasions, I've had to do the following to our 1943 14.5" SB:

Lift both main bearing caps and remove about .003" of shims.? Set aside carefully so they ultimately go back where they originated.? Replace the bearing caps and tighten down hard.? Do NOT remove too much shim, or the caps may distort.? Do not engage back gear.? You can now apply all the torque you can find a method to apply.? I had a 3' Stilson with another 3' scaffold pole extension and that didn't shift it without no.2 body applying lateral shocks over the female threaded extension of the backplate via a drift & 4 lb hand hammer.? On another occasion I applied a burning torch to the outside of the threaded part to shock expand it.

No harm has resulted from the above.? I only use the back gears for locking if my first jerk with the chuck key works.

Reassembly is a good opportunity to check the felts & bearing lift.

Ed





-------- Original message --------
From: "Bill in OKC too via groups.io" <wmrmeyers@...>
Date: 16/01/2025 17:38 (GMT+00:00)
Subject: Re: [SouthBendLathe] Birmingham self-centering 4-jaw chuck

Instead of the impact wrench, try hanging a weight off the end of a big wrench clamped on that bolt, and give it a shot of your favorite penetrating oil. I've successfully used both WD-40 and PBBlaster for that. I wasn't? in a hurry. Took a couple of days. I'd spray it every time I walked past it.?

Bill in OKC?

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

Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
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.
Expect in one hand, expectorate in the other. See which one gets full first.



On Thursday, January 16, 2025 at 09:16:05 AM CST, Dennis LaMonica via groups.io <dennislamonica@...> wrote:


Looks like a threaded chuck with a set screw against the threads to prevent unscrewing when the lathe is reversed. The chuck may be stuck. Do not use the back gears to lock the spindle. You may break teeth.?
If it is a threaded chuck, place the spindle in "neutral" so that the chuck and spindle turn free. Chuck up a large diameter bolt like 1/2-3/4" (12mm +) and use an impact wrench in reverse to break the chuck free.??

Dennis

--
Dennis
western NY, USA

1 - 12 of 12