Lubrication pumps are also called lubrication oil pumps. They are the device used to provide continuous and adequate lubrication to the rolling elements within a system or machinery. The rolling elements include the bearings and the gears in the gearbox; therefore, the lubrication pumps are commonly seen at these sites. The sites where lubrication is needed are referred to as the lubrication points and the lubrication pumps can usually be found around these sites.
Lubrication is needed to smooth the movement of the rolling elements within the machinery and the lubricant that is used to serve this purpose is usually the lubricating oil. By introducing the lubricant to the moving surfaces that contact each other, the friction of the rolling element and the wear of the parts can be controlled. That is, lubrication not only betters the working condition of the moving parts, but also protects them in an extreme working environment.
Lubrication is achieved mainly by the lubricating oil. The lubricating oils can contain different substances to add some properties and characteristics to the lubricant so that the best result of lubrication can be carried out. The substances are called additives. Besides the additives in the formula, the oils also come in various types. The lubricating oils can be synthetic, vegetable-based, mineral-based, or a combination of them. The end application of the lubricant determines which type of base oil is used.
In some cases, the lubrication points are frequently a closed working environment where the lubricant is required to circulate within the very system over and over again until the lubricating oil is drained away and replaced by the new oil. This is what the circulation lubrication is and the lubrication pumps in this case drives the lubricating oil running inside the system.
In a system as such, there is usually one or a couple of oil reservoirs that store the lubricating oil. The lubrication pump takes in a certain amount of oil from the reservoirs and forces the oil through the lubrication points. After the lubricant passes through the lubrication points, they will be driven back to the reservoir. The movement of the lubricant exiting a reservoir and going back to the reservoir is a full cycle of circulation lubrication. Based on the methods of lubrication, the lubrication pumps or other types of device are needed.
Grease is the medium that binds the additives together within the lubricating oils. The use of grease is based on the size and speed range of the rolling elements inside the machinery. In most cases, the use of grease has a maximum working temperature of 120 degrees Celsius yet the normal working temperature usually lies around 90 degrees Celsius.
Oil splash is another common lubrication method which refers to the direct contact of the lubricating oil. When the rolling elements are running, they make contact with the lubricating oil directly. The direct contact between the oil and the rolling elements should be sustained when the machine is running. However, the amount of oil should be controlled. If there is too much or too little oil at the lubrication point, excessive heat will be generated and hence the function of the oil will be compromised.
Lubrication is needed to enhance the performance of a system or a machine while at the same time provides a capable protection to the moving parts. The primary functions of lubricating oils include reducing friction and preventing wear. In addition to the friction and wear control, lubrication is also needed to provide temperature control and contamination control as well. The circulation of lubricant inside a system carries away the heat generated at the working points and drives contaminants to a filter.
Wear is the loss of material as a result of friction, contact of surfaces, and corrosion and the wear of parts leads to the excessive rising of temperature and forming of contaminants. Therefore, the primary goal of lubrication is to reduce friction. With the lubricant that coats the surfaces of the rolling elements, it protects the surfaces from corrosive substances and contaminants. The lubrication pumps are necessary as the driving force to carry away those hazardous substances.
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