vertical mill spindle square | NAWCC Message Board
Dec 18, 2012· Having measured the play in spindle (not the runout) has shown it to be 4/100 mm, 100 mm away from the bearing itself. So it is not much of a concern anyway as the flexing of the mill column is more than that when milling. Even if the slop and column flexing add up there still is not much to be concerned with, providing one takes light cuts.