Okuma HK307 Spindle With Endplay


Spindle shaft had endplay incoming Front & rear bearings feel rough. Front shaft nut spanner holes are damaged. Shaft tooling pilot worn & tapered +5/+22µ and has 8µ runout.


Clean, inspect overall dimensions. Repair front shaft nut spanner holes. Grind, chrome plate & finish grind shaft tooling pilot. Replace bearings, o-rings, air fittings & screws. Adjust preload, balance, assemble and break in. Final quality control inspection.

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