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Inspection of vibration and temperature of IKO bearing in operation

IKO bearing vibration of bearing damage is very sensitive, such as peeling, indentation, rust, crack, wear will be reflected in the measurement of bearing vibration, so through the use of special IKO bearing vibration measuring device (frequency analyzer, etc) can measure the vibration of the size, the frequency cannot be inferred from the specific situations of exception. The measured values are different due to the use of the bearing or sensor installation location, and therefore need to determine the criteria for the analysis and comparison of the measured values of each machine in advance.

IKO bearing temperature, generally outside the bearing room temperature can be speculated, if the use of oil holes to directly measure the temperature of the outer ring of the imported bearings, is more appropriate.

Normally, the temperature of IKO bearing with the bearing operation began to rise slowly, 1-2 hours after reaching a stable state. The normal temperature of IKO bearing is different from the heat capacity, heat dissipation, speed and load of the machine. If the lubrication, install suitable, IKO bearing temperature will rapid rise, there will be abnormal high temperature, then we must stop running, take the necessary preventive measures.

The use of thermal sensor can always monitor the IKO bearing temperature, and the temperature exceeds the specified value, automatic alarm or stop to prevent burning shaft accident.

High temperature often indicates that IKO bearings are in abnormal condition. High temperature is also harmful to the bearing lubricant. Sometimes IKO bearing overheating can be attributed to the lubrication of the bearing. If the bearing in more than 125 degrees Celsius temperature, long linked to reduce the IKO bearing life. Causes of high temperature bearings include: inadequate or excessive lubrication, lubricant. Containing impurities, the load is too large, bearing ring, the gap between the gap, and the oil seal produced high friction and so on.

Therefore the continuity of the IKO bearing temperature monitoring is necessary, whether the measurement of IKO bearing itself or other important parts. If the operating conditions are unchanged, any change in the temperature can be said to have occurred.

IKO bearing end of the installation, in order to check whether the installation is correct, the operation should be carried out. Small machinery can be rotated by hand to confirm whether the rotation is smooth. Check the project due to a foreign body, scars, indentation caused by poor functioning, due to poor installation, mounting process arising from poor torque instability, caused due to the clearance is too small, installation error, seal friction torque and so on. If there is no exception, you can start the power operation.

Large machinery can not be manually rotated, so the no-load start immediately cut off the power, the machine idle, check whether the vibration, noise, rotating parts are in contact and so on, after confirming there is no unusual into power operation.

Dynamic operation, starting from the low speed, slowly increased to the rated condition of the rated operation. Test operation in the matter for, whether there is abnormal sound, IKO bearing temperature changes, the leakage or discoloration of the lubricant, etc.. If abnormal, should immediately suspend operation, check the machine, if necessary, to remove the bearing inspection.

IKO bearing temperature, generally can be based on the bearing seat of the external temperature. But it is more accurate to directly measure the temperature of the bearing outer ring by using the oil hole. IKO bearing temperature, from the start of the operation gradually increased, usually 1~2 hours after the temperature is stable. If the bearing is poor, the temperature will rise sharply, and there will be abnormal high temperature. The reason such as excessive lubricant, bearing clearance is too small, poor installation, high friction and sealing device. High speed rotating occasion, IKO bearing structure, the choice of lubrication mode is also the reason.

Turn tone with a stethoscope to check the IKO bearing, metal noise, strong noise and irregular sound that abnormal. The reasons are bad lubrication, shaft or IKO bearing seat is poor, bearing damage, foreign matter intrusion and so on.

In the regular maintenance, replacement need to remove the bearing. After removal, if necessary to continue to use or to check for investigation, the demolition should be as cautious as the installation. Attention not to damage the bearings and spare parts, especially the removal of interference fit bearing, the operation is very difficult, so in the design stage should be considered prior to the demolition. It is also very important to design and manufacture the disassembly tool according to the need. When removing, according to the drawing research and disassembly method, the order, the investigation IKO bearing the matching condition, in order to remove the work smoothly.