best I can say is check an Enco cataloge . they have plan back chucks for
cheap at times . I spent a great deal of time trying to get the 6" one I got
with my lathe to clamp on center the jaws where realy messed up , I gave up
and bought a new one and sold the old chuck with my other lathe . I spent
$250.00 on the new one it was worth it . mounted it took a piece of clean
stock chucked it up but the dial indicator on it and it was right on . then I
found out the bed was worn made a long cut and it has an awful taper to it up
by the head stock . oh is the chuck you have a single pinion 3 pinion? I can
always keep an eye out for parts . do you think it can be welded and
remachined . since its not real critical you might be able to weld it and
grind the teeth into shape with a dremel tool . the abraisive cut wheels they
have for them removes metal real well and you should be able to reach
inbetween the teeth . shape them by eye just a thought
Bob
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