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Other commonly used bearing series

What are the types of imported bearing lubrication


There are several ways to lubricate imported bearings, and each type of bearing and each type of bearing are different when using lubrication. This is more conducive to maximizing the service life of imported bearings and is the highest performance of mechanical equipment. State of effectiveness.
1. Oil lubrication:
Viscosity is an important characteristic of lubricating oil. The magnitude of viscosity directly affects the fluidity of the lubricating oil and the thickness of the oil film formed between the friction surfaces. The viscosity of the lubricating oil at the bearing operating temperature is generally 12-15 cst. The higher the speed, the lower the viscosity should be, and the heavier the load, the higher the viscosity should be. Commonly used lubricants are mechanical oil, high-speed mechanical oil, turbine oil, compressor oil, transformer oil, cylinder oil, etc.
Oil lubrication methods include:
a. Oil bath Lubricating bath lubrication is the most common method of lubrication. It is suitable for the lubrication of low and medium speed bearings. A part of the bearing is immersed in the groove. The lubricating oil is carried by the rotating bearing parts and then flows back to the oil surface of the oil tank. Should be slightly below the center of the lowest rolling body.
b. Drip oil lubrication Drip oil lubrication is suitable for bearing parts that require quantitative supply of lubricating oil. The amount of drip oil is generally one drop every 3-8 seconds. Excessive oil volume will cause the bearing temperature to increase.
c. The circulating oil lubricating oil pump sends the filtered oil to the bearing parts, and the lubricating oil after passing through the bearing is filtered and cooled before being used. Since the circulating oil can take away a certain amount of heat and cool the bearing, this method is suitable for bearing components with high speed.
d. Dry compressed air for spray lubrication is mixed with lubricating oil to form an oil mist. Spraying the bearings, the airflow can effectively cool the bearings and prevent the intrusion of impurities. This method is suitable for the lubrication of high-speed and high-temperature bearing components.
e. The oil pump for jet lubrication shoots high-pressure oil into the bearing through the nozzle, and the oil injected into the bearing flows into the oil groove through the other end of the bearing. When the bearing rotates at a high speed, the rolling elements and the cage also cause the surrounding air to form an airflow at a relatively high rotation speed. It is difficult to send the lubricant to the bearing by general lubrication methods. At this time, the lubricant must be sprayed by a high-pressure spray method. Into the bearing, the nozzle position should be placed between the inner ring and the center of the cage.
2. Solid Lubrication Under some special use conditions, 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 pressure and heat resistance. For high temperature, elegant, high Vacuum, corrosion resistance, radiation resistance, and extremely low temperature and other special conditions, adding solid lubricants to engineering plastics or powder metallurgy materials can be made into bearing parts with self-lubricating properties, such as solid lubricants bonded with an adhesive The lubricating film is formed on the raceway, the cage and the rolling body, which has a certain effect on reducing friction and wear.
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