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View Full Version : 4 jaw chuck for 10K southbend



jlh28
11-10-2004, 03:56 PM
Does anyone have a recommendation for a good 4 jaw independent chuck to use on my lathe? I am trying to do some research to maximize the quality without blowing the entire years worth of shop cash.

Thanks

ACF
11-10-2004, 04:25 PM
I have a Bison made in Poland, not to bad. You can buy a Chinese one for less than the Bison, but I have no idea how the quality of these are.

Chris

jlh28
11-10-2004, 04:40 PM
I am seriously considering the Bison. What size did you buy?

SGW
11-10-2004, 05:55 PM
I think Bison may be the most reliable quality for the money. They're good.

A 6" chuck would probably be about right for a 10K.

Al Messer
11-10-2004, 07:06 PM
Does Bison make one that will fit a 1-1/2" x 8 tpi lathe spindle? I have a Bison 3 jaw that I really like and my old 4 jaw that came with the lathe in 1943 is getting old and worn out, just like me.

ACF
11-10-2004, 08:20 PM
jlh28,

I have an 8" bison on a 13" sheldon, so as SGW said, maybe a 6" would be the correct size for your 10" lathe.

Chris

SGW
11-10-2004, 08:24 PM
You ought to be able to get a Bison 4-jaw with a backpalte to fit 1 1/2-8. Based on my experience with a Bison 3-jaw with 1 1/2-8 backplate though, you may do better to get a blank backplate and machine your own to fit your lathe spindle. The 1 1/2-8 backplate I got with my 3-jaw was apparently made to fit every lathe that ever came with a 1 1/2-8 spindle. As a result, the tolerance was "loose." I bored it out, Loctited in a cast iron plug, and re-cut the thread to fit my particular lathe spindle. It would have been easier to start with a blank backplate!

BillH
11-10-2004, 08:38 PM
My bison backplate, the threads were fine, just the darn shoulder was too deep for the spindle on my lathe.
I think the 4 jaw Bison chucks have thrust washers on each screw for each jaw. I went cheap and bought Enco's semi steel 6" 4 jaw chuck for my 9" SB. IT works great, although perhaps a tad heavy? The Bison 4 jaw is much lighter if I recall enco's specs correctly.