the factors affecting the service life of deep groove ball bearings -币游国际app

peel, indentation, rust, crack and wear will be reflected in the deep groove ball bearing vibration measuring, because the vibration damage of bearing is very sensitive, so, through the use of special bearing vibration tester (frequency analyzer, etc.) can measure the size of the bearing vibration, through frequency points cannot deduce the abnormal situation. measured values of bearing or sensor installation position and different using conditions, thus requiring prior to each machine is analyzed by the measured value of the determined after judgment standard.
 

bearing temperature, generally have a bearing on the surface of the outdoor temperature can be predicted, if using the oil hole can directly measure temperature of bearing outer ring, is more appropriate.
 

in general, the temperature of the bearings with bearing operation began to slowly rise, 1 to 2 hours to reach a steady state. the normal temperature of deep groove ball bearings for machine heat capacity, heat dissipating capacity, rotational speed and load. if the appropriate lubrication, installation department, the bearing temperature will rise sharply, appear unusually high temperature, must stop at this moment, take the necessary precautions.
 

using thermal device can monitor the bearing temperature at any time, and realize e. automatic alarm when the temperature exceeds or stop to prevent the shaft accidents.
 

in high temperature often is in abnormal situation. high temperature is also harmful to skf bearing lubricant. sometimes overheated bearings can be classified to the bearing lubricant. if the bearing temperature for a long time even the transfer of more than 125 ℃ lower bearing life. the causes of high temperature bearing include: lubrication inadequate or excessive lubrication, the lubricant. contains impurities, heavy load, bearing damage, clearance, high friction and oil seal and so on.
 

so the continuity of skf bearing temperature monitoring is necessary, whether measured bearing itself or other important parts. if it is on the basis of the operating conditions, the temperature change of any fault has occurred.
 

in actual production, machinery and equipment used by the length of the fixed deep groove ball bearing life is directly related to the normal use of mechanical equipment and its normal production. although choose bearing according to the use of different environment and conditions, but there are a lot of bearing in the far reaches design life failure due to damage. failure of bearing used in the production of can produce severe vibration and noise, at the same time also can make the relevant parts were damaged, finally caused a series of adverse effects.
 

the cause of deep groove ball bearing premature failure are various, but the main is improper operation and maintenance and improper lubrication, poor lubrication, pollution overload, assembling, transportation, remove the collision and impact in the process. pollution is caused by human, it is because there is no pure clean factors such as disassembly tool.
 

the influence of fit clearance, clearance between shaft and the shaft is too big, relative movement between the two, one is with the axis of the period of excessive wear gap is more and more big, finally lead to bearing damaged: second, bearing a rift, affecting the precision of the movement. these reasons cause premature bearing failure, it is adverse to our actual work, therefore, to study how to avoid premature bearing failure, prolong the service life is of great practical value.
 

prevent deep groove ball bearing is the most effective way to avoid premature failure of the above analysis of various factors and the factors that can contribute to these conditions: should first before use when choosing bearing, considering the size of the noise, the size of the rigidity, bearing radial crack size, the size of the rotational torque, etc. the choice of lubricating oil, according to the bearing work environment, different lubricating medium of different noise in use.