Replacing a fan impeller seems like a simple operation, but without further balancing it leads to vibration and damage. Let's look at why this is important.
Why balancing is needed
Even a new impeller has a slight imbalance due to uneven material and manufacturing. At operating speeds, this imbalance creates significant vibration, which:
- Destroys bearings.
- Looses fastenings.
- Creates noise.
- Accelerates fatigue wear of the shaft.
When needed
| Situation | Balancing |
|---|---|
| Replacement of the impeller | Required |
| Repair/cleaning of the impeller | Desirable |
| Appearance vibration | Checking the balance |
How it’s done
The rotor with impeller is installed on a balancing machine, the location and magnitude of the imbalance is determined, then it is eliminated by removing material or adding balancing weights. After balancing, the vibration returns to normal.
Balancing after replacing the impeller is not a luxury, but a necessity for quiet and long-term operation of the fan. This is especially important for smoke exhausters and fans with large impellers.
Replaced the impeller and vibration appeared in Tashkent? Elektromotors engineers will perform the balancing - contact us.