By measuring the sound on the operation of the bearing rolling sound and sound check, bearing even with minor injuries such as split, abnormal sound and irregular sound issued, by measuring the sound to distinguish. It is a common method to use hearing to identify irregular operation. For example: by means of electronic stethoscope to certain parts of the abnormal noise is often a method used by the operator. SKF bearings FAG bearings INA bearings TIMKEN bearings NSK bearings NTN bearings Koyo bearings NACHI bearings. www.skfbearing-china.com
1, Zhou Chengruo is in good running state will make a low hum sound. If issued a sharp hissing sound, voice squeaking sound and other irregular, often said bad bearings in the running condition. A sharp creak noise may be due to improper lubrication caused by. Improper bearing clearance can also cause metal sound.
A concave track 2, bearing outer ring orbit will cause vibration, resulting in smooth crisp sound.
3, if the result of the installation of the percussion scars will produce noise, the noise will be different with the speed of the bearing.
4, if there is intermittent noise, it means that the rolling element may be damaged. This sound is when the damage occurred in the surface is rolled out, bearing if hissing sound pollution often caused. Severe damage to the same can produce irregular and massive noise.
5, bearing damage can be borrowed from the hearing to check, but usually this time has arrived at the bearing must be replaced immediately. Therefore, the better method for example, such as SKF Monitoring Electronic (Condition). Compared with the old method using a stick or bolt than opener against the bearing box, at the other end of the stick ear and new invention can ensure even more safety, more accurate prediction of bearing condition.