About temperature regulation and vibration technology of bearings

Update:2019-10-12

During the operation of the bearing, it is inevitable to generate a certain vibration. As the use time prolongs, bearing vibrations are sensitive to bearing damage, such as spalling, indentation, rust, cracks, wear, etc., which are reflected in bearing vibration measurements. Generally we can measure the vibration size with a special bearing vibration measuring device.
We mainly use the measured frequency to estimate the specific conditions of the bearing. The measured value will vary depending on the conditions of use of the bearing or the mounting position of the sensor. Therefore, it is necessary to analyze and compare the measured values of each machine in advance to determine the judgment standard. At the same time, during the operation of the bearing, its temperature is also a more important parameter.

The temperature of the bearing usually rises slowly as it runs, and it will reach a steady state after 1~2 hours. The normal temperature of the bearing will vary with the heat capacity, heat dissipation, speed and load of the machine. If the lubrication and installation parts are suitable, the bearing temperature will rise sharply and abnormal temperature will occur. At this time, it is necessary to stop the operation and take necessary precautions.
That is to say, in the process of bearing work, we need to pay close attention to the changes in its working temperature. The thermal sensor can be used to monitor the temperature of the bearing at any time, and automatically alarm or stop the occurrence of a burning shaft accident when the temperature exceeds the specified value. Generally, the use of high temperature often indicates that the bearing is in an abnormal condition.

In fact, in order to ensure the efficient operation of the bearing, it is necessary to continuously measure the operating temperature. Whether measuring the bearing itself or other important parts. If the operating conditions are the same, any temperature change can indicate that a fault has occurred.

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