Patent ID: 6390907
Filing Date: 2002-05-21
Classification: B24B

Abstract:
A spindle for a machine tool or the like, comprising:(a) a spindle shaft having a predetermined length and an outer periphery; (b) spindle shaft support means mounting said spindle shaft for rotation about a spindle shaft axis of rotation; (c) tool mounting means disposed proximate an end of said spindle shaft for receiving a machining tool; (d) a motor stator of predetermined length, surrounding said outer periphery of said spindle shaft and surrounding a predetermined portion of said predetermined length of said spindle shaft; (e) an opening through said motor stator, said opening extending said predetermined length of said motor stator and extending into said motor stator from an outer surface of said motor stator a predetermined extent towards said outer periphery of said spindle shaft; (f) said motor stator being energizable and when energized coacting with said spindle shaft to rotate said spindle shaft, and any machining tool carried thereby, about said spindle shaft axis of rotation.