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Avoid using fault TIMKEN bearing failure to the attention of the method

by:Waxing     2020-10-15
Rolling bearing in use process because of itself quality and external conditions, the bearing capacity, rotational accuracy and wear-resisting performance will change. When the TIMKEN bearing performance index is lower than the use requirement and when not working, bearing fault even failure occurs, bearing in the event of failure after accidents, machinery, equipment will halt, appear to wait for all sorts of anomalies, loss of function causes were therefore need to find out in the short term, and take corresponding measures. Must be carried out on the bearing inspection and maintenance, inspection and maintenance to prevent failure is very important, in the work to review the rolling noise, vibration, temperature of bearing and lubricant. The rolling bearing noise is a kind of TIMKEN bearing itself, namely bearing the inherent noise; The other is a bearing installed before the noise, has nothing to do with the noise of the bearing itself. By listening to sounds can be analyzed out some problems. 一) Inherent noise: race 'all kinds of bearings and rolling friction ( Cylindrical roller bearing) The voice of the rolling bearing is inherent. 'Race is made up of elastic properties of the rolling element and raceway contact, when bearing rotating roller rolling on the rolling and send out the voice of a continuous and smooth; B) Tremolo ( All kinds of bearing) C) When the rolling bearing raceway surface or body surface is damaged, pit corrosion, so can produce a certain cycle of noise and vibration. When bearing in operation will produce contamination noise have dust intrusion. This noise is periodically also accompanied by the sound vibration is not fixed, sometimes no. The vibration of the bearing of TIMKEN bearing failure effect is obvious. Such as peeling, indentation, rust, crack and wear will be reflected in the bearing vibration test so through the use of special bearing vibration measurement device ( Frequency analyzer and vibration meter, etc. ) Can measure the size of the vibrations through the frequency distribution can deduce the specific situation of the abnormal vibration measured values due to the use of the bearing condition or sensor installation position and therefore need different measurements of each machine in advance decision criteria determined after analysis and comparison. Usually TIMKEN bearing temperature as operation began to slowly rise to reach steady state after 1 to 2 hours. The normal temperature of bearing for machine and different heat capacity, heat dissipating capacity, rotational speed and load. If the lubrication, installation is not appropriate to the bearing temperature will rise sharply the abnormal high temperature will then have to stop and take the necessary precautions. Although the bearing quality and so on various aspects are good, but the rolling bearing is precision components, its use should be measured accordingly. No matter how high performance bearing use, if use undeserved, will not get the desired performance. Attention about the use of the bearing has the following several: ( 1) And keep the bearing and the surrounding clean. Even the eyes can't see the little dust, will also bring bad influence to the bearing. So, keep the surrounding clean, dust from invading bearing. ( 2) , carefully use. In use for TIMKEN bearing strong impact, will produce scar and creasing, become the cause of the accident. Severe cases, can crack, fracture, so must pay attention to. ( 3) And use the appropriate operating tools. Avoid to existing tools to replace, must use the appropriate tools. ( 4) And to pay attention to the corrosion of the bearing. Operating TIMKEN bearings, hand sweat will become the cause of rust. Pay attention to the operation with clean hands, it is better to try to bring gloves.
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