External jaws on a 3 jaw chuck

[BigDan83]

Could anyone help me please.

I’ve bought a 15”Pratt Burnerd 3 jaw chuck and need to source some external jaws for it.

Does anyone know a web site where I could possibly find the correct jaws for it?

See the attached photo for the catalogue No:

Thanks Dan.

 

[Seadog]

Pratt Burnerd Products - R.D. Barrett

 

[Agroshield]

Rotagrip in Birmingham. Somewhere on their website is a catalogue for nearly every PB chuck made. Sit down when you ask the price. Consider buying soft jaws and making your own external jaws. A lot cheaper.

 

[Turbo]

When you find out the price of them you'll likely find that it will be cheaper to buy a new bison chuck with both sets of jaws!

 

[Martin-Sy]

If it helps here's the part numbers you're looking for.
(Copy I have is a scan so it's a large file)

 

[Agroshield]

Another possibility is Nobilla Machine Tools:

Pratt Burnerd, Rohm, Toolmex, Bison, Taylor ................Chuck Jaws. - Nobilla Machine Tools LTD

Chuck jaws: Pratt Burnerd, Rohm, Toolmex, Bison, Taylor & others of various size1s inside, outside & soft jaws of all size1s. Give slot & jaw thickness as well as scroll pitch. This is best measured over as many teeth as possible then divided by the number of teeth. Give diameter of chuck & make...

nobilla.co.uk

 

[hotponyshoes]

I'm pretty sure pratt will still supply any jaws for any chuck they ever made.
As mentioned above, the prices might not be that tempting though.
Might be just as cheap to buy another used chuck with the jaws you require.
You might find it's quicker to change the whole chuck as required than just change the jaws as a added bonus

 

[BigDan83]

Cheers Lads. Much appreciated for your replies. Looks like a new set will set me back more than what I paid for the chuck.

 

[Seadog]

Have you any dimensions? I've a random set that may fit.

 

[Screwdriver]

Have you any dimensions? I've a random set that may fit.

Yep. Same here.

If you were able to supply a comprehensive description for the jaws, it would be a lot easier to help. A link to Google is not going to cut it.

 

[Seadog]

I found a drawing that I did for them.

 

[fizzy]

I found a drawing that I did for them.

View attachment 361737View attachment 361740View attachment 361739View attachment 361738

People harp on about CNC and yet they used to turn out lovely precision parts in vast quantities long before CNC came along!

 

[Screwdriver]

I found a drawing that I did for them.

View attachment 361737View attachment 361740View attachment 361739View attachment 361738

Just to be clear: those are the jaws you have? Not necessarily the jaws the OP wants?

 

[Seadog]

They are.

 

[BigDan83]

Have you any dimensions? I've a random set that may fit.

I’ll get the dimensions tomorrow of the internal jaws I have with the chuck. Thanks once again, it’s much appreciated.

 

[BigDan83]

Yep. Same here.

If you were able to supply a comprehensive description for the jaws, it would be a lot easier to help. A link to Google is not going to cut it.

I’ll get some photos and dimensions of the internal jaws tomorrow. Hopefully you guys will be able to help.

 

[Screwdriver]

I’ll get some photos and dimensions of the internal jaws tomorrow. Hopefully you guys will be able to help.

I recently picked up a bucket full of odd sets of jaws. Dunno what they fit yet....