Date: 2013-08-20

INA bearing after installation check

Strong metal noise description sounds, abnormal noise, does not rule exceptions. Due to poor lubrication, shaft or housing poor accuracy, bearing damage, such as foreign bodies penetrated. INA bearing rotation sound stethoscopes and other checks.
Many users there INA bearing unit couldn't be examined after this has caused problems with INA bearings in operation in the process. INA bearing operation to check what does it matter?
To check for proper installation, INA after the end of the bearing unit. To run checks. Small mechanical hand rotation, to confirm whether it rotates smoothly. Check project are caused by foreign bodies, scar, indentation to seize up, due to poor installation, device processing negative torque resulting from instability, error, as the clearance is too small, seal friction torque arising is too large, and so on. If there was no exception to start the power running.
No-load starting immediately after cutting off power, large machinery cannot be rotated manually. Machinery idle, check for vibrations, noise, contact rotating parts, and so on, after confirmed without exception, into the power running.
Starting from no-load speed, power running. Slowly to raise the rating of the condition function. Things to check for in the commissioning, any abnormal changes in sound, INA bearing temperatures, lubricant leakage or discoloration, and so on. If exceptions are found, should immediately suspend the operation, check the mechanical and, if necessary, to remove the bearings check.
General according to the external temperature housings to speculate. Use holes directly measure temperature of bearing outer ring is more accurate. Bearing temperature, INA bearing temperature. Running start rising, typically temperature-stable after 1-2 hours. If poor bearing units, temperature rises dramatically, unusual high temperatures. The reason such as excessive lubricant, INA bearing clearance is too small, poor installation, sealing device too much friction. Places of high speed rotation, bearing structure, lubrication of choice is also the cause of the error.

 

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