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Rolling bearing vibration and temperature determine damage

Source: Time:2016-08-19 17:33:56 frequency:

A vibration of rolling bearings
Rolling vibration of the bearing damage is very sensitive, such as peeling, indentation, corrosion, cracks, wear, etc. will be reflected in the rolling bearing vibration measurement, so, through the use of special bearing vibration measuring device (frequency analyzer, etc.) to measure the vibration the size, frequency can not be inferred by the abnormal situation. The measured values due to the conditions of use or sensor installation location of rolling bearings, etc., and thus requires prior measurement value each machine is determined after analysis and comparison criteria.
Second, the rolling bearing temperature
Rolling bearing temperature, generally bearing chamber outside temperature can be inferred, if the use of the hole can directly measure the rolling bearing outer ring temperature, position is more appropriate.
Generally, the temperature of rolling bearings as bearing running slowly began to rise 1-2 hours to reach steady state. Rolling normal temperature due to heat capacity, heat capacity, speed and load of the machine is different. If lubrication, install the appropriate department, the bearing temperature will be rapid rise, there will be abnormal high temperature, then must stop running, take the necessary precautions.
We can always use heat sensors to monitor the operating temperature of the rolling bearing, and automatic alarm or stop to prevent burning shaft accident occurred when the temperature exceeds a predetermined value.
High temperature frequently expressed in unusual circumstances. High temperature is also harmful to the rolling bearing lubricant. Sometimes Rolling overheating can be attributed to the bearing lubricant. If the long-term even move Rolling Rolling reduce life at a temperature of over 125 ℃. High temperature bearings causes include: lack of lubrication or excessive lubrication, lubricant. Contains impurities, the load is too large, the bearing ring damage, lack of space, and high-friction seals and so on.
Therefore, continuous monitoring of temperature is necessary rolling bearing, the rolling bearing itself is either measured or other important parts. If you are under the same operating conditions, any temperature change may represent a failure has occurred.
Periodic amount rolling bearing temperature can be measured by means of a thermometer, such as digital thermometers, can accurately measure the temperature of the rolling bearing and fixed by ℃ or Fahrenheit units.
Rolling importance, which means that when it is damaged, can cause equipment downtime, so the best kind of rolling bearing temperature detectors should be installed. Under normal circumstances, in the rolling bearing lubrication or just after the re-lubrication will naturally rise in temperature and lasts one to two days.
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Add:Dalian Economic Zone, Liaoning Province      Tel:86-0411-85760320
Copyright:Dalian Runfu Bearing Co., Ltd.       Technical support by:Ji'en ChuangXiang
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