A Rotary Table/4 Jaw Chuck Question

Morgan RedHawk

Active User
H-M Platinum Supporter
I was just wondering, when mounting a plain back 4 jaw chuck with through-the-front mounting bolts to a 4 slot rotary table, is the adapting plate necessary, or can you just mount the chuck directly to the table?

Thanks!
 
As long as the mounting holes in the chuck line up with the table's T slots,you can mount directly. If you make a test bar that accurately fits into the hole in the table,put it into the table's center hole. IF this is a 4 jaw UNIVERSAL chuck,Place the chuck on the table and tighten the jaws onto the test bar. Then,tighten the T nuts.

The chuck should be close to perfectly centered. Universal chucks are only so accurate anyway. Open the jaws some,and remove the test bar,of course.

If an independent 4 jaw,you'll of course,have to indicate all parts you clamp in the chuck till they are perfectly centered.
 
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