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1, bearing vibration

Bearing vibration damage to the bearings are very sensitive, such as spalling, indentation, rust, cracks, wear and tear and will be reflected in the bearing vibration measurement, so through the use of special bearing vibration measurement (frequency analyzer) to measure the vibration the size, the frequency can not infer the exception of the specific situation. The measured values ??due to different conditions of use of the bearing or sensor installation location, determine the criteria for judging prior to the measured value of each machine.

2, the bearing temperature

Bearing temperature, generally have bearings outside the room temperature can be inferred, if the use of the hole can directly measure the temperature of the bearing outer ring more appropriate bit.

Typically, the temperature of the bearing with the bearing running slowly began to rise after 1-2 hours to reach steady state. The normal temperature of the bearing due to the heat capacity of the machine, heat dissipation, speed and load. Lubrication, suitable mounting part, abrupt bearing temperature will rise, there will be unusually high temperatures, then have to stop running, take the necessary precautions.

Using the thermal sensor can always monitor the bearing operating temperature, and alarm or stop automatically when the temperature exceeds the specified value to prevent the burning shaft accident occurred.

High temperature is often said that the bearing is in an abnormal situation. The high temperature is also harmful to the bearing lubricant. Sometimes bearing overheating can be attributed to the lubricant in the bearing. Bearing more than 125 ℃ temperature long-term even transfer to reduce bearing life. Caused by high temperature bearing the reasons include: lack of lubrication or excessive lubrication, lubricants. Containing impurities, the load is too large, bearing loss of the ring, lack of space, and oil seals produce high friction.

Therefore, continuous monitoring of bearing temperature is necessary, whether it is measuring bearings or other important parts. If you are under the same operating conditions, any temperature change has failed.

Regular bearing temperature measurement by means of a thermometer, such as skf digital thermometer can accurately measure bearing temperature according to the given unit of ℃ or Fahrenheit.

The importance of bearing, which means that when it is damaged, can cause equipment downtime, so these bearings should preferably be the installation of temperature probes.

Under normal circumstances, the bearings will be just lubrication or lubrication after natural temperature rise and continue for one or two days.