Clinker Cooler Fan Rotational Looseness
High vibration issue on clinker cooler fan was addressed, reducing vibration levels significantly. The cause and solution will be shared in a future post.
High Vibration Issue on Clinker Cooler Fan – Solved (Almost too easily!) 🚨
We recently faced a high vib problem on overhung clinker cooler fan – Fan NDE side. Vibration levels were around 18.45 mm/sec RMS in Hor direction 11.7 in Axial direction and the spectrum showed clear 1X to 8X harmonics – classic signs of rotational looseness.
We did a small correction, and surprisingly the vibration dropped to 4.5 mm/sec in Hor direction and 2.3 mm/sec in axial direction(Yes still issue not resolved fully, but it will attend this on next PM)
📊 I’ve attached the before and after spectrum for reference.
Now I’m curious to hear from you all:
👉 What do you think could have caused such high vibration?
👉 What do you think we did to bring it down?
Will share the answer soon on next post. Your suggestions and thoughts are most welcome! 👇
Fan NDE bearing Number : SKF 22228 CC/W3
Fan DE bearing Number : SKF 22228 CC/W3
RPM : VFD(max 1487 RPM)
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