Speedie
Stainless
- Joined
- Feb 24, 2009
- Location
- Midwestern MN/Wi USA
ER40, bearing nut, small drills that are running out .002 on the tip. Spindle .0002 run out, collet taper .0002 like the spindle. Using a nut with a bearing and a precision collet...or so I think. When I tighten the nut the collet runs out .006 inside when tested. The nut bearing has some slop in it. I am thinking this is where the runout is coming from. I tried multiple tools, spinning the collet reduces the runout which brings me back to the nut bearing. Anyone seeing the same issue?