During the operation of the motor, vibration is a common phenomenon, which may be caused by a variety of factors, including mechanical imbalance, electromagnetic force, bearing failure, etc. The magnitude of the vibration depends not only on the design and manufacturing quality of the motor, but also on the load conditions. People are often curious about whether the vibration level of the motor is different when it is unloaded and when it is loaded.
No-load vibration: When the motor is running without load, the mass load on the motor rotor is small due to the lack of load, so theoretically, higher vibration may be generated. In addition, the motor is also prone to increased vibration when starting or changing speed.
Load vibration: When the load is running, the motor needs to provide sufficient torque to drive the load, which may cause the motor system to generate greater dynamic force. However, due to the presence of the load, there will be a certain amount of friction and resistance between the motor rotor and the load, which helps to stabilize the motor rotor and may reduce vibration.
In summary, the motor may have higher vibration when it is unloaded, but this is not absolute. In fact, the magnitude of the vibration depends on a variety of factors, including the design, manufacturing quality, installation accuracy, operating conditions, etc. of the motor. Therefore, for a specific motor, to accurately determine which of the no-load and load vibrations is higher, actual testing and evaluation are required.
In order to ensure stable operation and extend the service life of the motor, vibration should be minimized both under no-load and load conditions. This can be achieved by selecting high-quality motors, performing proper installation and speed regulation, and performing regular maintenance and inspections.
