Listening:
The use of hearing to identify irregular movements is a very common method, such as the use of an electronic stethoscope to detect abnormal noise of a part is used by experienced operators. If the FAG bearing is in good operating condition, it will emit a low humming sound. If it is a sharp hum, arpeggio and other irregular sounds, it usually indicates that the FAG bearing is in poor operating condition.
Sharp squeaking noise can be caused by improper lubrication. Improper FAG bearing clearance can also cause metallic sound. The dents on the outer ring of the FAG bearing can cause vibration and cause a smooth and crisp sound. If the knocking damage caused by the installation is also caused by noise, the noise will vary with the speed of the FAG bearing. If there is intermittent noise, it means that the rolling parts may be damaged. This sound occurs when the damaged surface is crushed. If there are pollutants in the FAG bearing, it will often cause noise. Serious FAG bearing damage will not occur. Regular and huge noise.
FAG bearing damage can be detected by hearing, but usually FAG bearings must be replaced immediately. Therefore, a better method, for example, using an electronic condition monitoring instrument, pre-ruptures the operation of the FAG bearing.
Compared to the old method (using a wooden stick or screwdriver to the FAG bearing housing and the other end to the ear), the FAG bearing condition can be more accurately estimated using advanced instruments.
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