1) metal materials, such as bearing alloy, bronze, aluminum base alloy, zinc based alloy, etc.
Bearing alloy bearing alloy and alloy alloy is mainly white, tin, lead, antimony or other metal, because of its good wear resistant, high plasticity, good running performance, good thermal conductivity and anti adhesive and good adsorption and oil well, it is suitable for heavy load and high speed condition the bearing strength of gold is relatively small, the price is more expensive, the use must be cast in bronze, steel or cast iron bearing on the formation of thin coating.
2) porous metal material (powder metallurgy material)
Porous metal material: porous metal is a powder material, which has porous structure. If it is immersed in lubricating oil, it will make the microporous filled with lubricating oil and become an oil bearing. It has self lubrication property. The toughness of the porous metal material is small, which is only suitable for the steady no impact load and the medium and small speed conditions.
3) nonmetallic materials
Bearing Plastics: commonly used bearing plastics are phenolic plastics, nylon, polytetrafluoroethylene and so on. Plastic bearings have greater compressive strength and wear resistance, which can be lubricated with oil and water, and also self lubricating, but with poor thermal conductivity.
Spherical roller bearing at work due to shaft and bearing contact friction, causing the surface heat, wear even "killed", so in the design of bearings, should choose antifriction good spherical roller made of bearing material bearing, suitable lubricant and the supply of proper methods, in order to obtain thick film lubrication and improve bearing the structure.
1, Watt surface corrosion: spectral analysis shows that the concentration of non-ferrous metals is abnormal. Many sub micron wear particles of non-ferrous metals appear in the spectrum, and the moisture content of the lubricating oil exceeds the standard and the acid value exceeds the standard.
2, shaft neck surface corrosion: spectral analysis shows that iron concentration is abnormal, iron spectrum has many iron sub micron particles, and the moisture content of lubricating oil is over standard or acid value is over standard.
3. The fracture of the surface of the neck of the shaft: there are iron cutting abrasive particles or black oxide particles in the iron spectrum, and there is a tempering color on the surface of the metal.
4, the fretting wear of the tile back: the spectral analysis showed that the iron concentration was abnormal, and there were many iron submicron wear particles in the iron spectrum, and the water and acid value of the lubricating oil were abnormal.
5, bearing surface strain: it is found in the iron spectrum that there is a cutting abrasive, and the abrasive composition is nonferrous metal.
6, tile surface exfoliation: there are many large size fatigue exfoliation alloy wear particles and layered abrasive particles in the iron spectrum.
7, bearing burning bearing: there are many large size alloy abrasive particles and black metal oxide in the iron spectrum.
8, bearing wear: due to the metal characteristics of shaft (high hardness, low yield) and other reasons, it is easy to make adhesive wear, abrasive wear, fatigue wear, fretting wear and so on.
Paint rust prevention: paint rust is characterized by a sealed motor. At the beginning, the motor sounds good, but in a period of storage, the motor becomes very abnormal, and the bearing is seriously rusted. Many manufacturers will be regarded as the bearing problem, the main problem is that the insulating paint volatile acid in a certain temperature and humidity, corrosion and protection of metals, the formation of corrosive substances, spherical roller channel bearing caused corrosion damage.
Bearing alloy bearing alloy and alloy alloy is mainly white, tin, lead, antimony or other metal, because of its good wear resistant, high plasticity, good running performance, good thermal conductivity and anti adhesive and good adsorption and oil well, it is suitable for heavy load and high speed condition the bearing strength of gold is relatively small, the price is more expensive, the use must be cast in bronze, steel or cast iron bearing on the formation of thin coating.
2) porous metal material (powder metallurgy material)
Porous metal material: porous metal is a powder material, which has porous structure. If it is immersed in lubricating oil, it will make the microporous filled with lubricating oil and become an oil bearing. It has self lubrication property. The toughness of the porous metal material is small, which is only suitable for the steady no impact load and the medium and small speed conditions.
3) nonmetallic materials
Bearing Plastics: commonly used bearing plastics are phenolic plastics, nylon, polytetrafluoroethylene and so on. Plastic bearings have greater compressive strength and wear resistance, which can be lubricated with oil and water, and also self lubricating, but with poor thermal conductivity.
Spherical roller bearing at work due to shaft and bearing contact friction, causing the surface heat, wear even "killed", so in the design of bearings, should choose antifriction good spherical roller made of bearing material bearing, suitable lubricant and the supply of proper methods, in order to obtain thick film lubrication and improve bearing the structure.
1, Watt surface corrosion: spectral analysis shows that the concentration of non-ferrous metals is abnormal. Many sub micron wear particles of non-ferrous metals appear in the spectrum, and the moisture content of the lubricating oil exceeds the standard and the acid value exceeds the standard.
2, shaft neck surface corrosion: spectral analysis shows that iron concentration is abnormal, iron spectrum has many iron sub micron particles, and the moisture content of lubricating oil is over standard or acid value is over standard.
3. The fracture of the surface of the neck of the shaft: there are iron cutting abrasive particles or black oxide particles in the iron spectrum, and there is a tempering color on the surface of the metal.
4, the fretting wear of the tile back: the spectral analysis showed that the iron concentration was abnormal, and there were many iron submicron wear particles in the iron spectrum, and the water and acid value of the lubricating oil were abnormal.
5, bearing surface strain: it is found in the iron spectrum that there is a cutting abrasive, and the abrasive composition is nonferrous metal.
6, tile surface exfoliation: there are many large size fatigue exfoliation alloy wear particles and layered abrasive particles in the iron spectrum.
7, bearing burning bearing: there are many large size alloy abrasive particles and black metal oxide in the iron spectrum.
8, bearing wear: due to the metal characteristics of shaft (high hardness, low yield) and other reasons, it is easy to make adhesive wear, abrasive wear, fatigue wear, fretting wear and so on.
Paint rust prevention: paint rust is characterized by a sealed motor. At the beginning, the motor sounds good, but in a period of storage, the motor becomes very abnormal, and the bearing is seriously rusted. Many manufacturers will be regarded as the bearing problem, the main problem is that the insulating paint volatile acid in a certain temperature and humidity, corrosion and protection of metals, the formation of corrosive substances, spherical roller channel bearing caused corrosion damage.
