Heald Red Head 411 Spindle Repair and Modification

 Heald Red Head 411 Spindle Repair and Modification Heald Red Head 411 Spindle Rebuild

Possible cause of failure:
Drive pulley ears, pulley nut & housing pin are damaged.
Customer requested an increase in speed and a new style shaft with specified wrench flats.

Recommended action:
Clean, inspect overall dimensions.
Upgrade to ceramic bearings for maximum speed of 22,000 RPM
Manufacture new shaft assembly, front shaft nut, rear shaft nut & housing pin.
Replace drive pulley & pulley nut.
Adjust preload, balance, assemble and break in. Final quality control inspection.



DETAILED CAUSE OF FAILURE

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