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Haas, VF-4B, s/n 31560, 10000rpm

VF-4B, s/n 31560, 10000rpm

DR7000951 Lower bearing
DR7000426 Upper bearing
DR7000039 Bearing Cartridge Repair
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 upper bearing housing inner diameter is larger than design specifications and shows some wear. We recommend plating and grinding the upper housing.
•The lower bearing housing inner diameter meets design specifications and shows no appreciable wear. No modification is required.
•The taper runout is acceptable. Our proposal provides no repair to the spindle taper.
•The upper and lower bearings show some wear on the inner and outer diameters.

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