US6390907B1 - Machine tool and machine tool spindle and ...
A motorized spindle assembly for a grinding wheel is fabricated with an opening extending through the spindle casing, and stator and so as to extend in the direction of the spindle axis of rotation at least the length of the stator. The opening is of a size, depth, configuration and disposition so that when the spindle assembly is utilized to grind a workpiece and to do so is …