The common malfunction parsing original NSK bearings

1, NSK bearing surface strain: iron spectrum found cutting abrasive, abrasive ingredients for non-ferrous metal. 2, NSK bearing journal surface corrosion: spectrum analysis found that iron concentration is unusual, there are a lot of iron in iron spectrum of submicron particles, water or high acid value oil paint. 3, NSK bearings tile surface corrosion: spectrum analysis found that abnormal non-ferrous metal element concentration; Iron spectrum appeared a lot of non-ferrous metal components in sub-micron wear particles; Lubricating oil excess moisture, acid value exceeds bid. 4, NSK bearing bush back micro wear: spectrum analysis found that iron concentration is unusual, there are a lot of iron in iron spectrum wear submicron particles, lubricating oil moisture and acid value anomalies. In liquid lubrication condition, the sliding surface is lubricating oil without direct contact, also can greatly reduce the friction loss and wear of surface oil film also has a certain vibration absorbing ability, NSK bearing journal surface strain: iron spectrum contains iron series cutting grinding grain or black oxide particles, metal surface heat tint. 6, superfinishing NSK bearings do not produce peak of the metamorphic layer, and is easy to wear, but also left by grinding metamorphic layers can be removed. To improve the service life of the workpiece by about 5 times. Smooth operation. 8, super finishing allowance of NSK bearings, an order of magnitude than grinding allowance is actually only a few microns. For low pressure feed processing. So the superfinishing size dispersity is small, high pass rate. 9, superfinishing NSK bearings for overlapping curve surface, easy to save oil, there will not be easy to wear and is used when grinding heat and burn research phenomenon. 10, superfinishing NSK bearings has more complex trajectory, but also by cutting role transition to grinding, can quickly reduce the surface roughness. But because of its vibration have repeatedly change direction, affect their further improve the quality of processing surface.