The size and sound quality of the measured sound operation of the bearing rolling sound check, bearing slight peeling damage, and will send out abnormal tone and irregular sound, able to distinguish between measured sound device. Hearing to identify irregular operation is a very common method. For example: With the electronic stethoscope to check the feel of certain parts is not normal noise is often the method used by the experienced operator.
1, bearing in good status will be issued even turn down low whining sound. If issued a sharp hissing sound, squeaky sound, and other irregular sounds, often said that bearing in bad situation even turn. Sharp squeaking noise may be caused due to improper lubrication. Improper bearing clearance can also cause a metallic sound.
2, the concave track dent on the bearing outer track will cause vibration, resulting in a smooth and crisp sound.
3, if the percussion scars caused due to the installation will produce noise, this noise will vary with the level of bearing speed.
4, if there is intermittent noise, said rolling elements may be damaged. This sound occurs when damage to the surface is rolling out of date, and bearing if pollutants are often caused by a hissing sound. Serious with the Order of damage to the irregular and huge noise.
5, bearing damage of course by listening to perceptible, but generally to the bearings must be replaced immediately to non-Therefore, better methods, such as such as the skf electronic condition monitoring equipment (Electronic Condition Monitoring). Than the old method of using a stick or screw than the child arrived on the bearing housing, the other end of the stick to the ear, the new invention can ensure a safer, more accurate estimates of bearing condition.
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