Date: 2013-08-20

Spherical roller bearings run check points

　　Spherical roller bearings after installation, to check for proper installation, operation check to. Small mechanical hand rotation, to confirm whether it rotates smoothly. Check the project due to foreign bodies, scar, indentation cause to seize up, due to poor installation, install a bad moment of instability arising from processing, as the clearance is too small, the installation error, caused by seal friction torque is too great, and so on. Without exception can start power operation.
　　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 confirmation was no exception, enter the power running.
　　Dynamic operation, starting from no-load speed, slowly increase to the rated operating conditions. Things to check for in the test run, is there abnormal sound, changes in temperature, spherical roller bearings lubricant leakage or discoloration, and so on. If you find an exception, should immediately suspend the operation, check the machine, if necessary, to remove the bearings check.
　　Spherical roller bearing temperature, generally according to the external temperature of the housings to speculate. Oil temperature more accurate direct measurements of the holes in the bearing outer ring. Bearing temperature, from a running start rising, typically temperature-stable after 1-2 hours. Bad if the bearings are mounted, the temperature will rise sharply, unusual high temperatures. Its causes, such as excessive grease, the bearing clearance is too small, poor installation, seal friction is too large. Occasions of high speed rotating, spherical roller bearings, lubrication of choice is also the cause of the error.
　　Turn the tone of spherical roller bearings with a stethoscope to check, have strong metal noises, and irregular sound note exceptions, such as abnormal noise. Its due to poor lubrication, poor precision shaft or bearings, bearing damage, intrusion of foreign bodies, etc.
　　Spherical roller bearing temperature, generally according to the external temperature of the housings to speculate. Oil temperature more accurate direct measurements of the holes in the bearing outer ring. Bearing temperature, from a running start rising, typically temperature-stable after 1-2 hours. Bad if the bearings are mounted, the temperature will rise sharply, unusual high temperatures. Its causes, such as excessive grease, the bearing clearance is too small, poor installation, seal friction is too large. Occasions of high speed rotating, spherical roller bearings, lubrication of choice is also the cause of the error.
　　Turn the tone of spherical roller bearings with a stethoscope to check, have strong metal noises, and irregular sound note exceptions, such as abnormal noise. Due to poor lubrication, shaft or housing poor accuracy, bearing damage, foreign body penetrated.

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