DR7000003 Lower bearing
DR7000067 Upper bearing
DR7000009M Dust Grind Taper – Manual spindle motor or live tool
DR7001854M Plate & Grind Journal – Manual spindle motor or live too
DR7000087 Dynamic Balance Rotating Part
DR7000041 Spindle Repair Labor And Assy

Inspection Results:

• The spindle journal diameters show no appreciable wear and are acceptable for proper bearing fits. The lower shaft has runout that is larger than design specifications. We recommend plating and grinding the lower shaft.
• The upper bearing housing inner diameter meets design specifications and shows no appreciable wear. No modification is required.
• The lower bearing housing inner diameter meets design specifications and shows no appreciable wear. No modification is required.
• The taper runout is larger than design specifications. We recommend dust grinding the taper.
• The upper and lower bearings show some wear on the inner and outer diameters.
• The stator passed the phase and insulation tests.
• The collet nut threads are a little rough, but seem to work fine. We will file the threads.
• The unit will be assembled and tested.