Problem & answerG-10
Bearing Failure
Likely causes
- Lack of lubrication
- Powder ingress through worn shaft seals
- Excessive load
- Misalignment
- Water contamination
- Normal wear
How to fix it
- 1Stop the machine immediately.
- 2Identify and remove the failed bearing.
- 3Inspect the shaft.
- 4Fit a new bearing and lubricate correctly.
- 5Inspect and replace worn shaft seals.
- 6Test the machine.
Technical note
Machines with dual-layer shaft seals use an inner seal to retain lubricant and an outer seal to keep powder out. Worn seals are a leading cause of bearing damage and shaft seizure.It is fixed when
Bearing temperature within operating limits.
Stop it coming back
- Inspect bearings and seals monthly.
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