Increased vibration of an electric motor is not just discomfort. It destroys bearings, weakens fastenings and ultimately leads to serious damage. Let's look at the main causes of vibration and how to eliminate them.
Main causes of vibration
- Rotor imbalance.Balancing imbalance after repair, dirt adhesion or damage to the impeller.
- Bearing wear.Backlash in the bearing causes runout and vibration.
- Misalignmentof the driven motor mechanism.
- Loose fasteningto the foundation or frame.
- Electromagnetic reasons - broken rotor rods, uneven gap.
How to determine the cause
Professional vibration diagnostics allows for a spectrum vibrations to pinpoint the source. But there are also simple guidelines:
| Vibration nature | Probable cause |
|---|---|
| Disappears when the power is turned off | Electromagnetic (winding, rotor) |
| Remains when coasting | Mechanical (imbalance, bearings) |
| Increases with speed | Rotor imbalance |
| Changes when tightening bolts | Looseness of fastening |
Elimination
- Check and tighten fastenings.
- Check alignment with mechanism.
- Assess the condition of the bearings - if there is play, you need replacement.
- If there is imbalance - balancing the rotor on the machine.
Vibration cannot be ignored: it accelerates the wear of all components. The sooner the cause is eliminated, the cheaper the repair will cost. In Tashkent, balancing and alignment are performed using special equipment with precise control.
Does the engine vibrate strongly? Elektromotors engineers in Tashkent will conduct vibration diagnostics and eliminate the cause - balancing, replacing bearings or alignment - contact us.