damage

 

Sliding bearing on the job as a result of the journal and bearing contact will produce friction, surface cause fever, even "killed", so in the design of the bearing, should choose sliding bearing materials with good sex of anti-friction bearings, suitable lubricant and appropriate supply method is adopted to improve the bearing structure for thick film lubrication, etc.

 

1. Tile surface corrosion: spectral analysis found abnormal concentration of non-ferrous metal elements; Many sub-micron wear particles of non-ferrous metals appeared in the spectrum. Lubricating oil moisture exceeds the standard, acid value exceeds the standard.

 

2, journal surface corrosion: spectral analysis found that the iron concentration is abnormal, there are many sub-micron particles of iron composition in the iron spectrum, the lubricating oil moisture exceeds the standard or the acid value exceeds the standard.

 

3, journal surface strain: iron spectrum in the iron cutting abrasive or black oxide particles, metal surface there is a tempering color.

 

4, tile back fretting wear: spectral analysis found that the iron concentration is abnormal, there are many iron components in the iron spectrum submicron wear particles, lubricating oil moisture and acid value is abnormal.

 

5. Bearing surface strain: cutting abrasive particles are found in the iron spectrum, and the abrasive particles are non-ferrous metals.

 

6, tile surface peeling: many large size fatigue peeling alloy wear particles and layered abrasive particles were found in the iron spectrum.

 

7, bearing burning tile: there are more large size alloy abrasive particles 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, easy to cause adhesion wear, abrasive wear, fatigue wear, fretting wear and other conditions