What are the methods of bearing fault identification

The fault identification method of the bearing is as follows:

　　 It is very important to improve productivity and economy to identify or predict whether the bearing is malfunctioning without passing the disassembly inspection. 　　

The main identification methods are as follows:

Recognition by voice

　　 Recognition by voice requires extensive experience. It must be fully trained to be able to distinguish between bearing sounds and non-bearing sounds. For this reason, a dedicated person should do the work as far as possible. You can clearly hear the sound of the bearing with a listening device or listening stick attached to the shell.

Identification by operating temperature

　　 This method is a comparative identification method and is limited to occasions where the operating state is not very changed. For this reason, the temperature must be continuously recorded. When a fault occurs, not only the temperature rises, but also irregular changes.

Identification by the state of the lubricant

　　 The lubricant is sampled and analyzed, and the degree of contamination is judged by whether foreign matter or metal powder is mixed in. This method is particularly effective for bearings that cannot be observed close or large bearings.