Miyano BNC-34C Spindle Repair

We have modified these Miyano spindles to incorporate an air purge to reduce the amount of contamination that is allowed into the spindle. This will increase the life of the spindle considerably. We try to keep our customers informed of why their spindle failed and suggest corrective actions to improve their spindle life. Sometimes that is as easy as installing an air purge. In some cases we need to review the customers process with them and visit the facility to decide on the best repair options for their particular situation.

Possible cause of failure:

Liquid contamination throughout. Front bearings got hot.
Cogged pulley very worn, aluminum pulley is damaged.

Recommended action:
Clean, inspect overall dimensions.
Replace bearings and orings.
Replace timing pulley.
Replace belt pulley
Adjust preload, balance, assemble and break in. Final quality control inspection.



DETAILED CAUSE OF FAILURE

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Repair History - Here are examples of similar spindle repairs that may contain additional information that will help you. If you have additional questions, please contact us.