Sliding bearing in the work due to the contact between the shaft and the bearing will produce friction, resulting in surface heating, wear and even "bite", so in the design of bearings, should choose a good antifriction bearing material to make the bearing, the right lubricant and the appropriate supply method, improve the structure of the bearing to obtain thick film Lubrication.
1, the axial neck surface strain: iron spectrum in the iron-cutting abrasive or black oxide particles, metal surface has a tempering color.
2, bearing wear: Due to the metal characteristics of the bearing shaft (high hardness, poor yield) and other reasons, easy to cause adhesion wear, abrasive wear, fatigue wear, fretting wear and other conditions.
3, Tile Surface corrosion: The spectral analysis of non-ferrous metal elements concentration anomaly, a lot of non-ferrous metal components in the Sub-micron wear particles, oil excess water, acid value Exceeded.
4, Tile back fretting wear: spectral analysis found iron concentration anomaly, iron spectrum has many iron components Submicron wear particles, lubricating oil moisture and acid value abnormalities.
5. Bearing Burning tile: There are more large size alloy abrasive grains and ferrous metal oxides in the iron spectrum of sliding bearing.
6, Tile Surface peeling: The iron spectrum found that there are many large-scale fatigue peeling alloy wear particles, layered grains.
7, the bearing surface strain: the iron spectrum found that there are cutting abrasive grains, plain bearings abrasive components for non-ferrous metals.
8, the journal Surface corrosion: spectral analysis found iron concentration anomaly, iron spectrum has a lot of iron components of sub-micron particles, plain bearings lubricants exceeding the water or acid value.