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The primary rule of sliding bearings
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2) Shaft surface corrosion: Spectral analysis found that the concentration of iron is abnormal; there are many submicron particles of iron in the iron spectrum; the moisture overrun or the acid value overrun of the lubricating oil.
3) Spine external strain: iron-based cutting abrasive black oxide particles in the iron spectrum; tempering color on the metal surface.
4) Fretting wear on the back of the tile: Spectral analysis found that the iron concentration was abnormal; there were many iron-submicron wear particles in the iron spectrum; the moisture and acid value of the lubricating oil were abnormal.
5) Bearing external strain: cutting abrasive grains are found in the iron spectrum; the abrasive grain composition is non-ferrous metal.
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