The deep groove ball bearing at work because the shaft and bearing contact will conflict, resulting in the appearance of fever, wear even "killed", so deep groove ball bearing in planning, should choose the antifriction good deep groove ball bearing production bearing, choose suitable lubricant and adopt appropriate supply method deep groove ball bearing, with improved structure for thick film lubrication.
1, Watt surface corrosion: spectral analysis shows that the concentration of non-ferrous metals is abnormal. Ferrography shows many sub micron wear particles of non-ferrous metals, and the excessive moisture and excessive acid value of lubricating oil.
2, shaft neck surface corrosion: spectrum analysis shows that iron concentration is abnormal, iron spectrum has many iron sub micron particles, water oil overruns or acid value overruns.
3, the surface of the axle neck is pulled. There are iron cutting grits or black oxide particles in the iron spectrum, and there is a tempering color in the appearance of the metal.
4, the fretting wear of the tile back: the spectral analysis shows that the iron concentration is abnormal, and there are many ferromagnetic submicron wear particles in the iron spectrum, and the moisture and acid value of the lubricating oil are abnormal.
5, deep groove ball bearing exterior injury: the iron spectrum is found to have cutting abrasive particles, and the abrasive composition is nonferrous metal.
6, shedding of tile surface: there are many large scale wearable and exfoliated alloy wear particles and layered abrasive particles in the ferrography.
7, deep groove ball bearing burning tile: there are many large scale alloy abrasive particles and black metal oxide in the iron spectrum.
Maintenance and judgment of deep groove ball bearing
Remove deep groove ball judge bearing can use, to check in the deep groove ball bearing after cleaning, carefully check the raceway surface, rolling surface, surface state, cage wear, deep groove ball bearing clearance is increased and had no effect on the size accuracy decline, abnormal damage. The non - separate small ball deep groove ball bearing and so on, the single hand flat end of the inner ring, rotating the outer ring to confirm whether smooth.
The tapered roller deep groove ball bearing equal separation deep groove ball bearing, which can be checked separately for the roller and the raceway surface of the outer ring.
Large deep groove ball bearing cannot be rotated by hand. It should pay attention to checking the appearance of rolling body, raceway surface, cage and sidewall. The more important the deep groove ball bearing is, the more careful it is to check.
According to the damage degree of deep groove ball bearing, mechanical properties, importance, operating conditions, inspection cycle and other related factors, it is determined. However, if the following defects are found in the inspection, deep groove ball bearing cannot be used, and a new deep groove ball bearing is needed.
(a) any one of the inner ring, outer ring, rolling body, and cage has a crack or notch.
(b) any one of the rings and rolling bodies is fractured.
(c) there are obvious bruises on the rolling surface, the edge and the rolling body.
(d) the wear of the cage is obvious, or the rivet is obviously loosened.
(E) there are rust or scars on the raceway and rolling bodies.
(f) a serious indentation or bruise on the raceway and rolling bodies.
(g) there is obvious creep on the inner diameter or outer diameter surface of the inner ring.
(H) obviously discoloration due to overheating.
(I) deep groove ball bearing oil free lubricating grease into the seals or shields seriously damaged.
1, Watt surface corrosion: spectral analysis shows that the concentration of non-ferrous metals is abnormal. Ferrography shows many sub micron wear particles of non-ferrous metals, and the excessive moisture and excessive acid value of lubricating oil.
2, shaft neck surface corrosion: spectrum analysis shows that iron concentration is abnormal, iron spectrum has many iron sub micron particles, water oil overruns or acid value overruns.
3, the surface of the axle neck is pulled. There are iron cutting grits or black oxide particles in the iron spectrum, and there is a tempering color in the appearance of the metal.
4, the fretting wear of the tile back: the spectral analysis shows that the iron concentration is abnormal, and there are many ferromagnetic submicron wear particles in the iron spectrum, and the moisture and acid value of the lubricating oil are abnormal.
5, deep groove ball bearing exterior injury: the iron spectrum is found to have cutting abrasive particles, and the abrasive composition is nonferrous metal.
6, shedding of tile surface: there are many large scale wearable and exfoliated alloy wear particles and layered abrasive particles in the ferrography.
7, deep groove ball bearing burning tile: there are many large scale alloy abrasive particles and black metal oxide in the iron spectrum.
Maintenance and judgment of deep groove ball bearing
Remove deep groove ball judge bearing can use, to check in the deep groove ball bearing after cleaning, carefully check the raceway surface, rolling surface, surface state, cage wear, deep groove ball bearing clearance is increased and had no effect on the size accuracy decline, abnormal damage. The non - separate small ball deep groove ball bearing and so on, the single hand flat end of the inner ring, rotating the outer ring to confirm whether smooth.
The tapered roller deep groove ball bearing equal separation deep groove ball bearing, which can be checked separately for the roller and the raceway surface of the outer ring.
Large deep groove ball bearing cannot be rotated by hand. It should pay attention to checking the appearance of rolling body, raceway surface, cage and sidewall. The more important the deep groove ball bearing is, the more careful it is to check.
According to the damage degree of deep groove ball bearing, mechanical properties, importance, operating conditions, inspection cycle and other related factors, it is determined. However, if the following defects are found in the inspection, deep groove ball bearing cannot be used, and a new deep groove ball bearing is needed.
(a) any one of the inner ring, outer ring, rolling body, and cage has a crack or notch.
(b) any one of the rings and rolling bodies is fractured.
(c) there are obvious bruises on the rolling surface, the edge and the rolling body.
(d) the wear of the cage is obvious, or the rivet is obviously loosened.
(E) there are rust or scars on the raceway and rolling bodies.
(f) a serious indentation or bruise on the raceway and rolling bodies.
(g) there is obvious creep on the inner diameter or outer diameter surface of the inner ring.
(H) obviously discoloration due to overheating.
(I) deep groove ball bearing oil free lubricating grease into the seals or shields seriously damaged.
