Bearings temperature, generally the bearing chamber outside temperature can be inferred, if the use of the hole can be measured directly in the double row angular contact ball bearing outer ring temperature, is more appropriate.
 Typically, the temperature of the double row angular contact ball bearings with bearings running slowly began to rise, 1-2 hours after the steady state is reached. The bearing normal temperature varies due to the heat capacity of the machine, the amount of heat, the rotational speed and load. If appropriate lubrication, installation, bearing temperature will rise abrupt, abnormal high temperature must stop running, take the necessary precautions.
Thermal sensors can monitor the bearing temperature, and automatic alarm or stop to prevent burning shaft accident occurred when the temperature exceeds the specified value.
High temperatures often said that bearing in an abnormal situation. The high temperature is also harmful to the bearing lubricant. Sometimes bearing overheating can be attributed to the bearing lubricant. If the bearing in the long term even transfer over 125 ℃ temperature reduce bearing life. High-temperature bearings caused by reasons including: lack of lubrication or over lubrication, lubricant. Contains impurities, the load is too large, bearing loss of the ring, the lack of space, and oil seals produce high friction, and so on.
Continuous monitoring double row angular contact ball bearings temperature is necessary, bearing both measuring bearing itself or other important parts. If it is in the case of operation conditions unchanged, any change in temperature can be expressed has malfunctioned.
Regular bearing temperature measurement by means of a thermometer, digital thermometer can accurately measure the bearing temperature according ℃ or Fahrenheit temperature fixed units. The importance of the bearing, which means when it is damaged, can cause equipment downtime, so this type of bearing temperature probe should preferably be retrofitted. Under normal circumstances, the bearing just lubrication or re-lubrication after there will be a natural temperature rise and lasted one to two days.
Typically, the working temperature above 150 ° double row angular contact ball bearings called high-temperature bearings, chromium bearing steel its hardness to a sharp decline in the temperature exceeds 150 °, dimensional instability, so that the bearing is not working properly. Bearing working temperature of 150 ° to 350 °, if the rings and rolling elements still use ordinary carbon chromium bearing steel manufacturing, must be tempered special bearing parts, should generally be higher than the operating temperature 50 ° tempering. After processing by the above requirements tempering of bearing steel, at the operating temperature under normal use. But tempered hardness decreased, reduced bearing life.


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