7x10 Mini Lathe Chuck Runout Question

Joe Pitz

Registered
Registered
Joined
May 7, 2015
Messages
269
Hello,

Just stuck a dial indicator on my chuck and got .002" runout. Is this acceptable or should I replace the head bearing with the tapered bearings from LMS?

Thanks

Joe
 
Remove the chuck and put your indicator point in the inside taper. That will tell you if the spindle is running out. If that checks ok then put the chuck back on and a dowel pin in the chuck. Indicate the dowel pin. If that checks ok then don't worry about the outside of the chuck.
 
2 thou run out on a chuck is nothing to wory about.. Most places advertise .003
 
And while you have the Chuck off be sure to clean the mounting surfaces on the Chuck & spindle real good. A tiny chip between the spindle & Chuck will cause a lot of runout on work being held in the Chuck.


Sent from my iPad using Tapatalk
 
Back
Top