Grease and lubricants are used in every type of machinery. Their applications are increasing day by day. And obviously, they are very useful in daily life.
Most people have the wrong idea about grease and lubricants. They think that lubricants and grease are the same. But it’s not that.
They are half wrong. Here, I am going to show the difference between grease and lubricant. Here we will have a deep insight into lubricant and grease so that you can quickly catch the difference.
In daily life and in many sectors, lubricant and grease are used. So, it’s necessary to use them properly. You can be mistaken when you use them without knowing their application and treating them as the same.
For perfect application, knowing the difference between them is very necessary. We will deeply understand these two in the next few moments. So, let’s get started.
Lubricants minimize friction between moving pieces and the passive resistance of the stationary parts of metals. All lubricants are manufactured from crude oil after a certain refining stage.
There are some types of lubricants. Such as: solid (graphite, Teflon), semi-solid (silicon gels,grease) and liquid or fluid (oils).
Every lubricant may differ compared to its performance and characteristics. But all of them have the same main component: “base oil.” Lubricants mainly contain between 75% and 85% base oil of synthetic origin or mineral.
Lubricates are used for lubrication. Reducing friction (rubbing or deformation) and preventing pieces from wearing is its primary function. Also, it reduces or absorbs shocks and protects from corrosion.
Without any doubt, lubrication isolates components from contamination. In other words, lubrication gets rid of contaminants.
Greases mainly consist of 0 to 95 % base oil (synthetic, mineral, or vegetable) and 0 to 10 % additive, as we mentioned previously. 3 to 20 % thickening agents are mixed with base oil to increase the viscosity and thickness. The base oil makes it smooth, and the thickening agent makes machinery lack-proof
Greases have high efficiency standing out in particular for their great adhesion to the surfaces of metals to be lubricated. Also, as they are insoluble in water, they can prevent sharing and last longer.
This is most noteworthy that you can’t heat grease more than 300 degrees because this will cause the separation of thickener from the base oil. And above this temperature, aluminum or copper-based coatings and thermal pastes are more suitable.
The good thing about grease is that, to its lubricating role (reduction of energy losses and mechanical fatigue due to friction), grease automatically creates a barrier (waterproof) against external elements like dust, heat, water, solvents, etc.
I know from the above information that greases are one type of lubricant. So, I can say that every grease is a lubricant, but all lubricants aren’t greased. And this is the main difference between grease and lubricant.
Grease is one kind of oil that has included a soap-like additive. The soap is added to thicken the oil. And the benefit of that is that it will stay or settle better to bearing surfaces or other areas. Also, some elements such as lithium, calcium, and copper are added for which the grease is intended.
Greases are generally designed for application on bearing surfaces, cantilever bosses, cables, seat posts, threads, and stems. Greases are applicable in other sectors, where a barrier between two materials is desirable.
Besides, lubricants are applicable in a wide range compared to grease. Lubricants, such as chains, levers, and gear levers, are used in places where friction may occur. And obviously, lubricants do everything that greases do.
So, compared to the working sector, lubricants are superior to grease. This is also a noticeable difference between grease and lubricant.
Now you are acutely aware of lubricants as well as grease. Now, you can differentiate lubricant and grease on your own—no need to apply your knowledge whenever necessary.
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