oilless bearings with voice detection whether there are abnormal

Use hearing to identify irregular operation is a very common method. For example: With the electronic stethoscope to check not feel a part of the normal noise often experienced operator method is used. Oil-bearing if in whining sound good even turn the state will issue a muffled. If issued sharp hissing sound, squeaking sound and other irregular sounds, often expressed in non-oil bearing bad situation even turn. Sharp squeak noise may be due to inadequate lubrication caused. Inappropriate entrance FAG bearing clearance will cause metal sound. Concave dent oil-bearing outer track on the track will cause vibration, resulting in a smooth and crisp sound. If your reason for knocking the scars caused by the installation will produce noise, this noise will follow the non-oil lubricated bearings of low speed varies.
If there are intermittent noise, then move parts may be damaged. This sound occurs when the damaged surface is rolling expired, within non-oil lubricated bearings if contamination often causes a hissing sound. With serious bearing damage will have irregular and loud noise.
Although non-oil lubricated bearing damage can be perceptible by hearing, but usually at this time has come to non-oil lubricated bearings required can not be replaced immediately. Therefore, it is preferable to use methods such as electronic condition monitoring instruments. Compared to the old method of using a stick more accurate estimate non-oil lubricated bearing condition.