Fault Identification Method Of Bearing

Without disassembly inspection, it is very important to identify or predict the failure of bearings in operation, which is very important to improve productivity and economy.
The main identification methods are as follows:
(1) Recognition by sound
Sound recognition requires a lot of experience. Adequate training is required to be able to recognize bearing and non-bearing sounds.
For this reason, the task should be carried out by special personnel as far as possible. The sound of the bearing can be clearly heard with a listening device or a listening stick attached to the housing.

(2) Identification by working temperature
This method is a comparative identification method, which is limited to the occasions where the operating state does not change much. For this reason, continuous temperature recording is necessary.
When a fault occurs, the temperature not only increases, but also changes irregularly.
This method is suitable to be combined with sound recognition method.

(3) Identification by the state of the lubricant
The sample analysis of the lubricant is judged by its degree of dirt, whether it is mixed with foreign matter or metal powder.
This method is especially effective for bearings or large bearings that cannot be observed closely.