There are several lubrication methods for INA angular contact ball bearings, and various types of INA angular contact ball bearings and various types of INA angular contact ball bearings are different when using lubrication, which is more conducive to INA angular contact ball bearings. The service life of the machine is maximized, and the performance of the mechanical equipment is in the highest efficiency state.
1. Oil lubrication:
Viscosity is an important characteristic of lubricating oil. The viscosity directly affects the fluidity of lubricating oil and the thickness of the oil film formed between the friction surfaces. The viscosity of lubricating oil at the working temperature of INA angular contact ball bearings is generally 12-15cst. The higher the speed, the lower the viscosity, the heavier the load, the higher the viscosity. Commonly used lubricants include mechanical oil, high-speed mechanical oil, turbine oil, compressor oil, transformer oil, and cylinder oil.
Oil lubrication methods include:
A. Oil bath lubrication
Oil bath lubrication is the most common lubrication method. It is suitable for the lubrication of low and medium speed INA angular contact ball bearings. Part of the INA angular contact ball bearing is immersed in the groove, and the lubricating oil is taken up by the rotating INA angular contact ball bearing parts. Then the oil level should be slightly lower than the center of the lowest rolling element.
B. Dripping oil lubrication
Drip oil lubrication is suitable for INA angular contact ball bearing parts that require a quantitative supply of lubricating oil. The amount of dripping oil is generally one drop every 3-8 seconds. Excessive oil volume will cause the temperature of INA angular contact ball bearings to increase.
C. Circulating oil lubrication
Using an oil pump to transport the filtered oil to the INA angular contact ball bearing components, the lubricating oil after passing through the INA angular contact ball bearing is filtered and cooled before use. Since the circulating oil can take away a certain amount of heat and cool the INA angular contact ball bearing, this method is suitable for INA angular contact ball bearing components with higher speeds.
D. Spray lubrication
Use dry compressed air through a sprayer to mix with lubricating oil to form an oil mist. Inject into the INA angular contact ball bearing, the airflow can effectively cool the INA angular contact ball bearing and prevent the intrusion of impurities. This method is suitable for the lubrication of high-speed, high-temperature INA angular contact ball bearing components.
E. Jet lubrication
Use an oil pump to inject high-pressure oil into the INA angular contact ball bearing through a nozzle, and the oil injected into the INA angular contact ball bearing flows into the oil groove through the other end of the INA angular contact ball bearing. When the INA angular contact ball bearing rotates at high speed, the rolling elements and the cage also make the surrounding air form an airflow at a relatively high rotation speed. It is difficult to send the lubricating oil to the INA angular contact ball bearing by general lubrication methods. At this time, it must be used The method of high-pressure injection sprays the lubricating oil into the INA angular contact ball bearing, and the position of the nozzle should be placed between the inner ring and the center of the cage.
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2. Solid lubrication:
Under some special conditions of use, add a small amount of solid lubricant to the grease. For example, adding 3 to 5% of No. 1 molybdenum disulfide can reduce wear and improve compression and heat resistance. For high temperature, elegance, high vacuum, and corrosion resistance , Anti-radiation, and extremely low temperature and other special conditions, adding solid lubricants to engineering plastics or powder metallurgy materials can be made into INA angular contact ball bearing parts with self-lubricating properties, such as bonding the solid lubricant with a binder A lubricating film is formed on the raceway, cage and rolling elements, which has a certain effect on reducing friction and wear.