Identify The Noise Of FAG Bearings

SKF W 638/3-2Z bearing

　　The sound meter is used to check the size and sound quality of the rolling sound of the FAG bearing in operation. Even if the FAG bearing is slightly damaged such as peeling, it will emit abnormal and irregular sounds, which can be distinguished by the sound meter. It is a very common method to use hearing to recognize irregular movements. For example, using an electronic stethoscope to detect abnormal noise of a certain part is often a method used by experienced operators.

　　If the FAG bearing is in a good continuous rotation state, it will emit a low whining sound. If there is a sharp hiss, squeak and other irregular sounds, it often indicates that the FAG bearing is in a bad continuous rotation condition.

　　The sharp squeaking noise may be caused by improper lubrication. Inappropriate FAG imported bearing clearance can also cause metallic noise. The dents of the concave track on the FAG bearing outer ring track will cause vibration and cause a smooth and crisp sound. If it is caused by knocking scars during installation, noise will also be generated. This 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 rolled over. Contaminants in the FAG bearing often cause a hissing sound. Severe joint load damage will produce irregular and loud noises.

　　FAG bearing damage can be detected by hearing, but the FAG bearing must be replaced immediately when it has arrived. Therefore, a better method uses, for example, electronic condition monitoring equipment. Compared with the old method, the condition of FAG bearings can be estimated more accurately using a wooden stick.