Oil bath lubrication: Oil bath lubrication is the most common lubrication method, suitable for the lubrication of low and medium speed bearings. Part of the bearing is immersed in the oil tank. The lubricating oil is brought up by the rotating bearing parts and then flows back to the oil tank. The oil surface should Slightly lower than the center of the lowest rolling element.

Dripping oil lubrication: Dripping oil lubrication is suitable for bearing parts that require a quantitative supply of lubricating oil. The amount of oil dripping is generally one drop every 3-8 seconds. Excessive oil amount will cause the bearing temperature to increase.

Circulating oil lubrication: Use an oil pump to transport the filtered oil to the bearing components. The lubricating oil after passing through the bearing is filtered and cooled before use. Since the circulating oil can take away a certain amount of heat and cool down the bearing, this method is suitable for bearing parts with higher rotating speeds.

Spray lubrication: dry compressed air is mixed with lubricating oil through a sprayer to form oil mist. In the spray bearing, the air flow can effectively cool the bearing and prevent the intrusion of impurities. This method is suitable for the lubrication of high-speed and high-temperature bearing parts.

Injection lubrication: Use an oil pump to inject 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 high speed, the rolling elements and cage also rotate at a very high speed to form an airflow in the surrounding air. It is difficult to send lubricating oil to the bearing using general lubrication methods. At this time, the lubricating oil must be sprayed with high-pressure injection. In the bearing, the position of the nozzle should be between the inner ring and the center of the cage.