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Analysis of the difference between imported bearing rolling track and grease

Source: Bearing network time: 2013-04-03

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First, the imported bearing rolling track bearing a transition, the inner ring and the outer ring of the raceway surface; the reason is actually very simple; because the rolling body is tumbling contact; so the running track is a dark surface; the running track is attached to the raceway surface It is abnormal; therefore, the load conditions can be known; then we are in the state of removing the imported bearings; please pay close attention to and investigate the running track of the raceway surface. If you carefully investigate the running track, you will know that you only bear the negative path. Load; accept large axial loads; accept moment loads; or have extreme rigidity inequalities on the bearing housing.
If the above key can't be done; we don't do it according to the demand; then it is before the nsk bearing life; but it takes a long time; in this case; the damage condition is stripping. On the other hand; Damage; early damage that cannot be used; as the cause of the early damage; there is no use and lubrication; and there is also foreign matter intrusion; the error of the imported bearing assembly and the deflection of the shaft, the shaft and the bearing housing Research can't wait.
There are other conditions; we can add accidental load and device errors to the imported bearings, and whether it can be used by the National University; and it is a clue to trace the bearing damage.
After all of the above; the common sense of our analysis is still very necessary to do so; because we attach great importance to this. Therefore; we must be fully aware of the machine used by nsk bearings; the conditions of use; the layout of the bearing periphery; Can clarify the situation before and after the attack; together with such work; we do not want to have frequent attacks; but try to avoid the attack.
Second, the method of distinguishing grease
1. The hand rubbing method rubs the lubricating oil between the thumb and the index finger repeatedly; the better lubricating hand feels lubricity, less wear debris, no conflict; if you feel a large conflict between the sand between the fingers; Indicates that there are many impurities in the lubricating oil; it can not be reused; it should replace the new lubricating oil.
2. Illumination method on a clear day; use a screwdriver to pick up the lubricant; at a 45-degree angle to the horizontal plane. Check the sunlight; investigate the oil droplets; under the light; clearly see that there is no wear debris in the lubricating oil is outstanding; Continuous effect; if there is too much wear debris; should replace the lubricant.
3. Take a clean white filter paper by oil droplets; a few drops of oil on the filter paper; after the oil leaks; if there is a black powder on the outside; if there is a feeling of resistance by hand contact, it means that the impurities inside the lubricant have been Many; good lubricants are powder-free; they are dry and lubricated by hand; they are yellow.
4. The oil flow survey method takes two measuring cups; one is filled with lubricating oil; the other is empty on the table; the measuring cup filled with lubricating oil is lifted off the tabletop 30-40 cm and tilted; let the lubricating oil flow gradually In the empty cup; investigate the activity status; the quality of the lubricating oil should be slender, uniform, and continuous; if the oil flow suddenly and slowly; sometimes there is a large flow; then the lubricant has been transformed.
Stationmaster supplies imported bearings nsk bearings

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