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How does the bearing in operation judge the fault through the sound?

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Today, there are many mechanical equipments; technology is booming; machinery and equipment products are getting more and more advanced; bearings of one of the mechanical parts are very simple and difficult parts; it is difficult for general skilled personnel to identify the difficult location of the bearing; Skills compared to fierce bearing skill personnel is very good X; than Fang Jun Sang Ling bearing skills personnel is very fierce; regardless of the mechanical device is SKF bearings are still domestic bearings; as long as the sound can identify the location of the problem; See how the SKF bearing at work can discern the problem by listening to the sound.
Bearing damage can of course be detected by hearing; however, it is now common for the bearing to be replaced immediately. Therefore, better methods such as the use of electronic condition monitoring instruments; The old method (use a wooden stick or screwdriver to the bearing housing; the other end is attached to the ear); using the leading instrument can more accurately predict the bearing situation.
Sharp 吱吱 noise may be caused by improper smoothness. Inappropriate SKF bearing gaps also form metal sounds. The dents on the outer ring of the bearing cause oscillations; and a smooth and loud sound is formed; Noise can also occur when knocking scars are formed; this noise will vary with the bump of the bearing speed.
It is a very general method to use auditory to identify irregular work; for example, if an electronic stethoscope is used to detect abnormal noise of a part, it is experienced by the operator. If the bearing is in outstanding work, it will be declared low. The humming sound; if a sharp voice, voice, and other irregular sounds are announced, it generally indicates that the imported bearings are in poor working condition.

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