When we use the bearing, the bearing temperature is often very high, General outdoor temperature of bearing can often be inferred. If it's with oil hole test, be more appropriate. Typically, temperature of the bearings with bearing the operation slowly increased, to 1-2 hours later in a stable state. Bearing operating temperature and heat capacity, heat of the machine, directly related to the operating speed and load.
The importance of bearing, meaning when it is damaged, will cause the device to shut down, so these bearings should preferably be retrofitted with a temperature probe. Under normal circumstances, just after lubrication and relubrication of the bearing will have natural temperatures to rise and lasts 1-2 days.
Typically, the bearing temperature above 150 ° is called high temperature bearings, due to chromium bearing steel in use when temperature exceeds 150 °, sharp decline in its hardness, dimensional instability, the bearing is not working properly. So for the working temperature at 150 ° to 350 ° conditions of bearings, rings and rolling elements still use ordinary high-carbon chromium bearing steel, bearing parts must be special tempering process shall normally be carried out under the above operating temperature 50 ° tempering. After tempered bearing steel according to the above requirements, can work in temperatures under normal use. But because of the decrease in hardness after tempering, decreased bearing life. When the bearing operating temperature higher than 350 °,, you must use high temperature bearing steel.



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