Millwright how-to

How to Replace a Conveyor Pillow Block Bearing

Bearing replacement is a routine but precise repair.

Updated By the Career Education Institute Curriculum Team
Quick answer

Bearing replacement is a routine but precise repair. In short: lock; mark; loosen, then complete the remaining steps below.

Step by step

  1. Lock out the equipment.

  2. Mark the bearing position and remove the drive belt or coupling.

  3. Loosen set screws or locking collars and remove the bearing.

  4. Inspect the shaft for wear and clean it.

  5. Install the new bearing without hammering on the outer race.

  6. Align, tighten, lubricate as directed and test run.

Safety reminders for millwrights

  • Follow lockout/tagout and verify zero energy
  • Plan every lift and inspect rigging
  • Stay clear of suspended loads
  • Use machine guards and keep hands away from pinch points

Alignment · Soft foot · Dial indicator · Shim · Coupling · Runout: see the full millwright glossary.

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