Excello 550 Spindle Repair

Possible cause of failure:

  • #4 bearing failure from contamination
  • Rear journal sleeve is cracked
  • Front and rear housings are oversized
  • Pulley journals are undersized

Repair action:

  • Clean, inspect overall dimensions
  • Replace bearings
  • Replace rear journal sleeve
  • Grind plate grind front bearing housing
  • Grind plate grind pulley journals
  • Adjust preload, balance, assemble and break in
  • Final quality control inspection


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