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Dean Head
01-14-2003, 05:46 PM
Another newbie question...
When I machine a back plate for a chuck typically how much oversize do you make the shoulder on the back plate? Back plate is CI.
Thanks
Dean

brunneng
01-14-2003, 06:17 PM
If I follow you right, you are talking about the OD of the disk? Usually it's the same OD as the chuck back.

If your spindle has a registration shoulder as in the 7x12 lathes and then bolts on with 3 or 4 studs. The shoulder should be a snug slipfit.

Kevin