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View Full Version : Tailstock Chuck with Revolving Jaws?



miker
11-02-2007, 07:32 PM
This was featured in the Letter section of a recent issue of "Model Engineers Workshop 127 " .
It was described as an accessory for the "EMCO Compact 8". With a # 3 MT it would fit in my Tailstock. The Ball Races allowing you to grip a shaft with a damaged or no center hole. The jaws on the chuck pictured seem to be simple flat section with holes to mount the Ball Races in different positions.
In someways the concept is similar to the "Revoling Drill Chuck" recently purchased by oldtiffe from "The Little Machine Shop".
Anyone know where I could get this or a similar chuck?
I'm guessing it would be about 3-4 inch.

http://img.photobucket.com/albums/v448/mikerr/Scan10582.jpg

Rgds

John Stevenson
11-02-2007, 07:58 PM
Micheal,
You would do better looking for a 4 jaw revolving to go on yje tailstock.

Many times the shafts needed to be gripped are damaged or bent and need to be held offset to get the right part, usually a bearing diameter, to run tru.

.

BadDog
11-02-2007, 08:38 PM
Now that would be nice. Maybe a 4" (or even 6"?) 4 jaw mounted on a modified bull nose center?

japcas
11-02-2007, 08:49 PM
http://www.use-enco.com/CGI/INSRIT?PMAKA=NY271-5304

I have this one. I agree with John that a 4 jaw is handier but they seem to be harder to find. A little creative shimming on the jaws can produce the same results as a 4 jaw with a little patience. These are fairly affordable also.