Fan Shaft Wear and Bearing Internal Clearance
Elevated vibration levels in an axial fan were attributed to fan shaft wear and excessive bearing clearance, highlighting the importance of proactive vibration analysis.
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Axial Fan – High Vibration
During routine condition monitoring, we recorded elevated vibration levels of 16.5 mm/s RMS (horizontal) on an axial fan driven by an induction motor via belt. The FFT spectrum showed dominant 1X fan harmonics, consistent with mechanical looseness.
🛠️ Inspection Findings:
- Fan shaft wear
- Excessive bearing internal clearance
These mechanical defects contributed to instability and increased dynamic forces.
✅ This case reinforces the importance of proactive vibration analysis in detecting early-stage faults before functional failure occurs.
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Post Information
Category:
Vibration Case Study
Language:
English
Reading Time:
1 min
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Original Authors
ALI Ismael
Source:
https://www.lin...