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What are the lubrication methods commonly used for sliding bearings

Author:admin   Date:2022-07-01
Manual lubricating oil. When it is found that the lubricating oil of the bearing is insufficient, it is the most primitive method to use the oiler to supply oil in time. This method is difficult to maintain a certain amount of oil, and there is a greater risk of forgetting to refuel due to negligence. It is usually only used in light-load, low-speed or intermittent motion occasions. It is best to set a dust cover or a ball valve on the refueling hole, and use felt, cotton, wool, etc. as a filter device.

2. Oil ring lubrication. Lubrication method for horizontal shafts only. A rotatable ring that hangs on the shaft brings the lubricating oil from the sump to the bearing. Suitable for medium and high speed bearings with shaft diameter greater than 50mm. The oil ring is preferably seamless. When the bearing width-diameter ratio is less than 2, only one oil ring can be used, otherwise two oil rings are required.

3. Oil rope lubrication. The lubricating oil in the oil cup is led into the bearing by the capillary action and siphon action of the oil rope. The oil rope also has a filtering effect.

4. Oil bath lubrication. Lubrication method in which a part of a sliding bearing is immersed in lubricating oil. This method is often used for thrust bearings of vertical shafts, and is not suitable for radial bearings of horizontal shafts.

5. Splash bearing. The lubricating oil splashed by the slap of the rotating parts in the oil tank is supplied to the bearing, which is suitable for the bearing of higher speed.

6. Spray lubrication. The lubrication method of atomizing lubricating oil on the friction surface is suitable for high-speed bearings.

7. Pressure oil supply lubrication. The oil is supplied to the bearing by the pressure of the lubricating pump, and the lubricating oil flowing from the bearing is recovered to the oil pool for recycling.


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