Lubrication has an important effect on the life of FAG bearings, so we need to apply the correct lubrication and maintenance methods.
1, oil bath lubrication
Oil bath lubrication The common lubrication method in FAG bearings is suitable for lubrication of low and medium speed FAG bearings. Part of the FAG bearing is immersed in the groove, the lubricating oil is brought up by the rotating FAG bearing part, and then flows back to the oil groove. The oil level should be slightly lower than the center of the lowest rolling element.
2, drip lubrication
Drip oil lubrication is suitable for FAG bearing parts that need to supply lubricating oil quantitatively. The amount of dripping oil is generally one drop every 3-8 seconds. Excessive oil quantity will cause the temperature of FAG bearing to increase.
3, circulating oil lubrication
The filtered oil is sent to the FAG bearing component by an oil pump, and the lubricating oil after passing through the FAG bearing is filtered and cooled for use. Since the circulating oil can take away a certain amount of heat and cool the FAG bearing, this method is suitable for FAG bearing parts with higher speed.
4, spray lubrication
The dry compressed air is mixed with the lubricating oil through a sprayer to form an oil mist. In the FAG bearing, the airflow can effectively cool the FAG bearing and prevent the intrusion of impurities. This method is suitable for the lubrication of high speed, high temperature FAG bearing components.
5, injection lubrication
The high-pressure oil is injected into the FAG bearing through the nozzle by the oil pump, and the oil injected into the bearing flows into the oil groove through the other end of the FAG bearing. When the FAG bearing rotates at a high speed, the rolling elements and the cage also form a gas flow at the relatively high rotation speed of the surrounding air. It is difficult to send the lubricating oil to the FAG bearing by the general lubrication method, and the lubrication must be performed by the high-pressure injection method. The oil is sprayed into the FAG bearing and the position of the nozzle should be placed between the inner ring and the center of the cage.
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