After installing the bearing, in order to check that the installation is correct, to run checks. Small machine can rotate to confirm whether it rotates smoothly. Check the project due to foreign bodies, scar, indentation cause to seize up, poor installation, mounting bad moment of instability arising from processing, as the clearance is too small, installation error, caused by seal friction torque is too large, and so on. If there was no exception to start the power running.
Large machinery cannot be rotated manually, so no load starting immediately after cutting off power, machinery idle, check for vibrations, noise, contact rotating parts, and so on, after confirming that without exception, into the power running.
Power operation, starting from no-load speed, slowly raised to conditions imposed by the rated operation. Things to check for in the commissioning, whether abnormal changes in sound, bearing temperatures, lubricant leakage or discoloration, and so on. If you find an exception, should immediately suspend operation, check the mechanical and, if necessary, to remove the bearings check.
Bearing temperature, generally according to the external temperature of the bearing seat speculated. Use holes directly to more accurately measure the temperature of the bearing outer ring. Bearing temperature, from a running start rising, typically temperature-stable after 1-2 hours. If adverse bearing installation, temperature rises dramatically, unusual high temperatures. The problems such as excessive lubricant and bearing clearance is too small, poor installation, such as excessive seal friction. High speed rotation, bearing, lubrication of choice is also the cause of the error.
Rotation using stethoscope to check of the bearings, has a strong metal noise and different sound irregular sound note exceptions, such as. Due to poor lubrication, shaft or housing bore poor accuracy, bearing damage, foreign body invasion.
Commonly used lubricant lubricants and greases for rolling bearings in two ways. When the circumference of the shaft speed is less than 4-5m/s, or car parts are lubricated by lubricating oil cannot be used on are using grease lubrication. Grease-lubricated seals are the advantages of simple structure, loss of grease is not easy, is not affected by the temperature, add lubricating grease once you can use a long period of time.



Other News:
Bearing operation effect check lubrication method
Transmission maintenance of deep groove ball bearing life extension
Reducing bearing noise maintenance lubrication method
Precision bearing load capacity
Heating in the bearings fault
Effects of environmental conditions on bearing failure
Check the INA bearing several points to be noted
Housing key to the quality of the production process