Large radial vibration at the non-driven end of the exhaust fan
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The dynamic balance is fine, the bearings are fine, the shaft is fine, and alignment is also fine; it’s just that there is significant radial vibration at one end. What could be causing this?
Fastening of anchor bolts to the equipment, fixing supports for fans, issues with bolts coming loose or welds failing, etc.
Check the heat sinks on the non-drive side
The fan does not vibrate when there is no load
Oh, I need to check the operational aspects to see if there are any issues such as excessive outlet pressure or too low suction volume.
Has it been confirmed in terms of the process? No problem
Is the preload on the outer ring of the bearing at the non-motor end appropriate? Is that end a free end?
Is there a problem with the fan impeller?