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Design requirements for plain bearings
Author:admin Date:2022-09-29
When the sliding bearing is in operation, friction will occur due to the contact between the journal and the bearing bush, which will cause the surface to heat up, wear and even "seize". Therefore, when designing the bearing, the sliding bearing material with good friction reduction should be used to make the bearing bush, and suitable lubricants And adopt the appropriate supply method, improve the structure of the bearing to obtain thick film lubrication and so on.
1. Corrosion of tile surface: Spectral analysis found that the concentration of non-ferrous metal elements was abnormal; there were many sub-micron wear particles of non-ferrous metal components in the spectrum; the moisture content of lubricating oil exceeded the standard and the acid value exceeded the standard.
2. Surface corrosion of the journal: Spectral analysis found that the concentration of iron was abnormal, there were many sub-micron particles of iron in the ferrography, and the moisture content of the lubricating oil exceeded the standard or the acid value exceeded the standard.
3. Strain on the journal surface: There are iron-based cutting abrasive particles or black oxide particles in the ferrography, and there is a tempered color on the metal surface.
4. Fretting wear of tile back: Spectral analysis found that the iron concentration was abnormal, there were many sub-micron wear particles of iron composition in the ferrography, and the moisture and acid value of the lubricating oil were abnormal.
5. Bearing surface strain: There are cutting abrasive particles found in ferrography, and the abrasive particles are composed of non-ferrous metals.
6. Tile surface spalling: There are many large-sized fatigue spalling alloy wear particles and layered abrasive particles found in ferrography.
7. Bearing burning tile: There are many large-sized alloy abrasive grains and ferrous metal oxides in the iron spectrum.
8. Bearing wear: due to the metal characteristics of the shaft (high hardness, poor concession) and other reasons, it is easy to cause adhesive wear, abrasive wear, fatigue wear, fretting wear and other conditions.
1. Corrosion of tile surface: Spectral analysis found that the concentration of non-ferrous metal elements was abnormal; there were many sub-micron wear particles of non-ferrous metal components in the spectrum; the moisture content of lubricating oil exceeded the standard and the acid value exceeded the standard.
2. Surface corrosion of the journal: Spectral analysis found that the concentration of iron was abnormal, there were many sub-micron particles of iron in the ferrography, and the moisture content of the lubricating oil exceeded the standard or the acid value exceeded the standard.
3. Strain on the journal surface: There are iron-based cutting abrasive particles or black oxide particles in the ferrography, and there is a tempered color on the metal surface.
4. Fretting wear of tile back: Spectral analysis found that the iron concentration was abnormal, there were many sub-micron wear particles of iron composition in the ferrography, and the moisture and acid value of the lubricating oil were abnormal.
5. Bearing surface strain: There are cutting abrasive particles found in ferrography, and the abrasive particles are composed of non-ferrous metals.
6. Tile surface spalling: There are many large-sized fatigue spalling alloy wear particles and layered abrasive particles found in ferrography.
7. Bearing burning tile: There are many large-sized alloy abrasive grains and ferrous metal oxides in the iron spectrum.
8. Bearing wear: due to the metal characteristics of the shaft (high hardness, poor concession) and other reasons, it is easy to cause adhesive wear, abrasive wear, fatigue wear, fretting wear and other conditions.
