Rolling sound viewing and disposal of SKF bearings

Source: China Bearing Network Time: 2013-09-30

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SKF bearing noise is one of the SKF bearing's own attack; that is, the inherent noise of the SKF bearing; the other is the noise that occurs after the SKF bearing is installed; it has nothing to do with the noise of the SKF bearing itself. Let's analyze how to view and dispose of the bearing based on the bearing tumbling sound.
a) Inherent noise: the sound of the raceway and various SKF bearings and tumbling conflicts (cylindrical roller SKF bearings) is the inherent sound of the rolling SKF bearing; the rolling sound is caused by the elastic characteristics of the rolling body and the rolling track; When the SKF bearing rotates; the rolling body rolls over the raceway and announces a continuous and slippery sound; abnormal tumbling conflicts can announce an uncomfortable metal conflict abnormal sound such as "cracking, squeaking"; Will announce such a sound. Therefore, it is not a problem under normal circumstances; as long as the noise increases, it is necessary to pay attention.
b) Noise associated with SKF bearing fabrication: including cage noise and vibrato; cage noise is primarily present in ball bearings and tapered roller SKF bearings; when SKF bearings rotate due to cage oscillations and cages and rollovers The attack will announce the sound. This sound has a periodicity. Vibrato (various SKF bearings) is an acoustic sound with a certain frequency; it is caused by oscillations caused by large waviness on the raceway surface. This phenomenon is the most common problem; we need to pay more attention to it in the future. In particular, we are learning some students who have common sense of bearing; we should carefully look at the above key points; maybe you will have some assistance. .
c) Noise caused by improper use: There are various SKF bearings. When the bearing raceway or the tumbling outer surface is bumped, crushed, or rusted, there will be a certain period of noise and oscillation. When the SKF bearing invades dust during work, it will cause dirt noise. This kind of noise is counter-cyclical, the same is accompanied by oscillation, and its sound is not fixed; sometimes it is not.

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