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INA bearing after the installation is complete, in order to check for proper installation, run checks to. Small mechanical hand rotation, to confirm that the rotate smoothly. Check the project due to foreign body, caused by scars, indentation to seize up, because of the bad installation, mounting process arising out of the bad moments are not stable, owing to the clearance is too small, caused by installation errors, seal friction torque is too large, and so on. Without exception you can start power function.
Large machinery cannot be rotated manually, so no load starting immediately after cutting off power, mechanical idle, check for vibrations, noise, contact rotating parts, and so on, after you confirm without exception, into the dynamic operation.
Dynamic operation, starting from no-load speed, slowly raised to the conditions set forth in the rated operation. Things to check for in the commissioning, whether any unusual changes in sound, INA bearing temperature, lubricant leakage or discoloration, and so on. If you find an exception, should immediately suspend the operation, inspection machinery and, if necessary, to remove the bearings checked.
INA bearing temperature, generally according to the external temperature of the bearing seat to speculate. Uses of oil hole direct measurement of the temperature of the bearing outer ring is more accurate. Bearing temperature, from a running start rising, usually temperature-stable after 1-2 hours. Bad if the bearings are mounted, the temperature rises dramatically, exception occurred at high temperature. The reason such as excessive lubricant, bearing clearance is too small, poor installation, sealing device too much friction. High speed rotation occasions, INA bearing structures, lubrication of choice is also the cause of the error.
INA bearing turn tone with a stethoscope to check, there is a strong metal noises, different sound irregular sound of note exceptions, such as. Due to poor lubrication, shaft or housing poor accuracy, bearing damage, intrusion of foreign bodies, and so on.
Steel surfaces under transient high temperature and oxygen in the air, rising into very thin (20~30nm) thin-layer iron oxides. Worthy of note is the thickness of the oxide layer and surface grinding of degenerating layer corresponds to the total thickness of test results is related. This shows its directly related to the thickness of the oxide layer and grinding are important signs of grinding quality.
1, first of all, be sure to buy really INA bearings, bearings if you bought a fake can't longevity in what to do.
2, before installing the bearings, bearing to check first whether the lack of oil, is clean, and then examine the parts of the machine you want to install, after you determine the good grease and clean, properly installed bearings.
3, INA bearing trials, were installed later, bearing a trial run, run for a while check found nothing abnormal, the bearing can enter using normal status.
4, to check on a regular basis, each INA bearing lubrication is essential, the bearing is no exception, when in the maintenance of bearings, first check the bearing surface is clean, if not clean enough, then first rinse it with gasoline or alcohol again, and then was part of a vital, is the grease on. To grease in the bearings of the time not too much extra grease, as long as the soiled little grease on friction between the two, if the presence of pollutants, can feel out. INA bearing when lubricating greases, you should avoid contact with cotton fabric to any part of the bearing, which causes the scroll on the residue of some fibers may stick and cause damage. Had better make sure that each time you check the time, and then follow the normal checks whether a shortage of oil is clean, the INA bearing several point longevity.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| MR137ZZ NSK | 7 | 13 | 3 |
| HR32203J NSK | 17 | 40 | 17.25 |