How To Lubricate The Fan Bearings of A Fume Hood

Lubricating the fan bearings of the fume hood is a key step to ensure its normal operation and extend its service life. The following are some methods and suggestions for lubricating the bearings of fume hood fans:

First, choose the appropriate lubricant

Select the appropriate lubricant based on the type of bearing, working conditions and the manufacturer's recommendations. Common lubricants include greases and lubricating oils. Grease lubrication is suitable for bearings with low speed and low load, while lubricating oil lubrication is suitable for bearings with high speed and high load.

Second, preparations before lubrication

Power-off and protection:

Before carrying out lubrication work, be sure to turn off the power of the fume hood first and unplug it to ensure safety.

Wear appropriate personal protective equipment, such as gloves and goggles, to prevent injury or exposure to harmful substances.

Clean the bearings

Before lubrication, clean the surface of the bearing and the dirt around it first to prevent impurities from entering the interior of the bearing.

Clean with appropriate cleaning agents and tools to ensure the bearing surface is clean.

Third, lubrication methods

Grease lubrication

If grease is used as a lubricant, it can be injected into the bearing using a manual oiling gun or an automatic lubrication system.

When adding oil, make sure the grease is evenly applied to the interior of the bearing and fills 2/3 to 3/4 of the bearing cavity.

Avoid excessive oiling to prevent grease from overflowing and polluting the surrounding environment or affecting the heat dissipation of the bearings.

Lubricating oil lubrication

For lubricating oil lubrication, a circulating oil system or oil bath lubrication method is usually adopted.

The circulating oil system transports lubricating oil from the oil tank to the bearing position through the oil pump, and then flows back to the oil tank for filtration and cooling.

Oil bath lubrication involves immersing the bearing part in lubricating oil, and the rotation of the bearing brings the lubricating oil into the bearing clearance for lubrication.

Fourth, lubrication cycle

The lubrication cycle depends on the working conditions of the bearing, the size of the load and the type of lubricant. Generally speaking, the lubrication cycle can be determined based on the manufacturer's suggestions or the actual usage conditions. Under harsh working conditions or when operating under high loads, it may be necessary to lubricate the bearings more frequently.

Fifth, Precautions

Avoid the mixed use of lubricants:

Do not mix different types of lubricants to avoid adverse reactions or reduced lubrication effect.

Regularly inspect and replace the lubricant:

Regularly check the oil level and quality of the lubricant and replace it if necessary. If the lubricant deteriorates or is severely contaminated, new lubricant should be replaced in time.

Keep clean

During the lubrication process, a clean environment should be maintained to prevent dust and impurities from entering the interior of the bearings.

Follow the manufacturer's suggestions:

Before carrying out lubrication work, it is best to consult the manufacturer's manual or recommendations of the bearings and lubricants to ensure that lubrication is carried out in the correct way and at the correct cycle.