What are the Methods of Combined Roller Bearings Oil Lubrication?

Common combined roller bearings oil lubrication are as follows:

1. Oil bath lubrication: mostly used for low and medium speed occasions, part of the bearing immersed in the oil bath, the lubricant from the rotating bearing parts to bring up and then back to the oil bath.

2. Oil drip lubrication: mostly used for higher speed small bearings, through the needle valve type oil injection oil cup by self-weight drip into the bearing for lubrication. Oil volume is generally a few drops per minute.

3. Splash lubrication: splash lubrication for high-speed bearings, the use of intrusive oil pool in the rotation of the gear or dump oil ring to make oil splash lubrication. This method is widely used in automobile gearboxes and differential gear devices and machine tool gearboxes.

4. Circulation lubrication: more for high speed, load larger bearings. With oil pump will lubricant delivery to the bearing parts, through the bearing after the lubricant filtered, cooled and recycled.

5. Jet lubrication: bearing high-speed rotation, rolling body and cage also rotate at a fairly high speed, so that the air around the formation of airflow, with the general lubrication method is difficult to lubricant delivery to the bearing. With the oil pump will be high-pressure oil sprayed into the bearing through the nozzle, after the bearing oil flow back to the oil tank, while the bearing plays a role in lubrication and cooling.

6. Oil mist lubrication: use compressed air to atomize the oil, and then sprayed into the bearing through the nozzle. As the compressed air and oil mist into the bearing together, so the cooling effect is better. Suitable for high-speed high-temperature bearing lubrication.

7. Oil and air lubrication: the use of piston type quantitative distributor, every certain time will be a trace of oil to the compressed air flow in the tube, in the wall of the tube to form a continuous flow of oil, to provide bearings. The main difference between oil-air lubrication and oil-mist lubrication is that the lubricant supplied to the bearing is not atomized, but enters the bearing in droplets. Therefore, the lubricating oil is easier to be deposited in the bearing, and does not pollute the environment, the oil quantity is small and stable, the friction torque is small, the temperature rise is low, and it is especially suitable for high-speed bearings.

8. centrifugal method lubrication: for vertical shaft bearing, can use the pump suction effect of tapered hole to transport the lubricant from the lower part to the upper part.

9. Centralized lubrication: multiple machines running at the same time, many bearings at the same time lubrication, can be applied to centralized lubrication system. Longer lubrication pipeline can be reached through the more distant lubrication position. The advantage of centralized lubrication is that the pump and the central oil tank is easy to monitor, and can effectively reduce the temperature rise of the bearing.

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