Bearing high temperature causes are: quality does not meet the requirements or deterioration of lubricant, lubricant viscosity is too high; body fitted too tight (insufficient gap), TIMKEN bearing Assembly too tight; bearing washer on the shaft or in the shell rotation; load too large; bearing cage effects of fragmentation, such as or.
Minor operation is allowed in the work of rolling bearing noise, if the sound is too loud or abnormal noise or impact sound, then bearing is faulty.
1, check the actual load and speed of the TIMKEN bearing differed from the original not gauge whether, bearing selection is correct;
2, to understand the damage and proximity to damage of abnormal phenomena, in particular the State and evolution of the emergence of situations such as noise and heat; attention to check the power supply and the adjacent machine components of TIMKEN bearings during this time there is no anomaly. Analysis of noise type, high and low tone, rhythm of frequency interference: notice when the temperature suddenly increases, and so on, note the power supplies and the situation in other parts;
3, identify the host configuration and combined with characteristics of the TIMKEN bearing, whether or not configured properly, note the rings relative to the shell and position relative to the direction of load;
4, damage to the shaft with her hands together with a TIMKEN bearing test go few laps to experience running heavy levels, promoting several times back and forth along an axis to an axis to experience axis along the axial tension and, if necessary, measure the deflection of the shaft;
5, and check bearing is located parts, identified lubrication; situation and pollution situation, audit lubricant grades and sealed way whether wrong, attention in has temperature rose situation Shi, TIMKEN bearing temperature whether over by with lubricant of temperature limited, focus check oil bit high and low, sealed gap whether leak oil leak fat, and water, and dust grain or other foreign body whether has intrusion bearing, for oil system has whether fault
6, to see whether the presence has an impact on bearing vibration sources. Fragment or particle source, water pollution, or fluid flows through the TIMKEN bearing current source;
7, depending on circumstances, could serve as a basis to determine the bearing damage due to fretting corrosion, wear and tear, rust or corrosion is.
TIMKEN bearings when removing checks, according to the bearing damage to determine causes of bearing failure and damage.



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