Bearing vibration is very sensitive to bearing damage.
For example, peeling, indentation, rust, crack, wear, etc. are reflected in the bearing vibration measurement.
Therefore, vibration can be measured by using a special bearing vibration measuring device (frequency analyzer, etc.).
The size, the frequency can not be inferred from the specific circumstances of the anomaly.
The measured value differs depending on the conditions of use of the bearing or the position at which the sensor is mounted.
Therefore, it is necessary to analyze and compare the measured values of each machine in advance to determine the judgment standard.