Cincinnati Maxim 500 Spindle Rebuild

Jesse Riccardi General Manager

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Possible cause of failure:
Bearings noisy from use and contamination.
50 taper worn with low spots.
Drawbar force is low.
Drive dogs have wear marks.
Grippers worn from use.
Spanner holes in drawbar nut are galled.
Spacers are not square.

Recommended action:
Clean, inspect overall dimensions.
Grind, chrome plate and finish grind the 50 taper.
Rework the spanner holes on the drawbar nut.
Replace quad set and a pair of bearings, grippers bellevilles, and orings.
Grind spacers.
Rework the drive dogs.
Adjust preload, balance, assemble and break in. Final quality control inspection.

Jesse Riccardi General Manager

With over 15 years of spindle rebuilding experience, training, and shop management, Jesse specializes in partnering with industry leaders to advance and improve the precision machine service market.