On 2009-01-15, Ignoramus18994 wrote:
I tried to find an inexpensive three jaw chuck for L-0 mount to
replace my bad three jaw chuck. Finally found these two ebay items:

300285582565 - Bison 3 jaw L0 mount 8 inch -- $50
300285584382 - Bison 3 jaw L0 mount 10 inch -- $127

I may end up keeping just one of them.

The general rule for a 3-jaw chuck is to go about half the
maximum swing. Thus for my 12" Clausing, a 6" (or 6-1/4" as the nearest
Bison size) is about right.

Was yours a 14" lathe? If so, then the 8" would probably be the
better choice. Check to see whether the jaws at maximum extension hit
the ways.

4-jaw chucks can come closer. I have a 10" on my 12" Clausing.

Enjoy,
DoN.

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