Identify INA non-standard bearings can continue using the method of diagnosis technology

INA bearing vibration diagnosis technology including signal acquisition, signal processing and fault recognition three aspects of content. Signal collection of rolling bearing vibration, including 1 KHZ under low frequency vibration and several thousand Hertz and even tens of thousands of Hertz high frequency vibration. Therefore, vibration signal collection of commonly used acceleration sensor and speed sensor, the weight of the selection principle is as follows to ensure that the sensor itself at least less than 1/10 of the weight measuring system effectively. The test frequency range should be located in the selected sensor linear frequency range. Testing of the most famous level shall not exceed 1/3 of the allowable impact velocity sensor. Generally low sensitivity of sensors used in the large magnitude, high sensitivity sensor for small vibration level. Should choose to adapt to the environment of corresponding sensor signal processing of sensor output signal contains abundant INA bearing condition of vibration waveform, also with all kinds of noise. The role of signal processing is isolated from the sensor output signal characteristic parameters and the curve as needed. Vibration signal analysis of the main points and two kinds of time domain analysis and frequency domain analysis. With amplitude domain and time domain analysis of time two forms, transformation between time domain and frequency domain by the technical implementation. But if there are any INA bearings. The following of defects, it can no longer continue to use, should be replaced immediately new non-standard bearings. Specific as follows: ( a) Bearing inner ring and outer ring, rolling element and cage have crack or gap on any one; ( b) Bearing ring, rolling body on any fracture; ( c) Bearing raceway surface, guard, with significant roller card injury; ( d) Bearing cage wear significantly, or rivet significant relaxation; ( e) On the raceway surface, rolling element bearing with rust and injury; ( f) On the raceway surface, rolling element bearing has serious indentation and mark; ( g) Bearing inner ring diameter or outer diameter surface has obvious creep; ( h) Due to the hot color is obvious. So, when INA bearings in the above situation, please do not continue to use new non-standard bearings should be replaced immediately. To avoid unnecessary accidents.