standardGrease is a solid and semi-solid gelatinous substance composed of petroleum derivatives and a metal soap, which is used for indoor lubrication
NLGI = National Lubricating Grease Institute.
Greases have high adhesion and suitable temperature and should be used for each special grease device and one of the most important quality factors of grease is the type of soap and the type of thickener. Types of greases: Greases are divided into 9 types based on the degree of viscosity
Some greases are labeled "EP", which indicates "extreme pressure". Under high pressure or shock loading, normal grease can be compressed to the extent that the greased parts come into physical contact, causing friction and wear. EP greases have increased resistance to film breakdown, form sacrificial coatings on the metal surface to protect if the film does break down, or include solid lubricants such as graphite or molybdenum disulfide to provide protection even without any grease remaining.
Solid additives such as copper or ceramic powder are added to some greases for static high pressure and/or high temperature applications, or where corrosion could prevent dis-assembly of components later in their service life. These compounds are working as a release agent. Solid additives cannot be used in bearings because of tight tolerances. Solid additives will cause increased wear in bearings.
Greases or lubricants have traditionally been used to keep vehicles, vessels, machines, and their components lubricated at all times. However, no two lubricants are the same - different types of grease produce different results based on the unique properties they possess.
Due to this versatility, lubricants have many different applications and are used across a wide range of industries, including automotive, manufacturing, mining, construction, steel, marine, farming industry, and so on.
If you are unsure of which type of grease you need, take a look at some of the most common lubricants available on the market today.
colour of greases depend on your target or goals.because part metals of your machines and your places greasing are differents.
Types of grease and their uses
Calcium grease is one of the first greases that was manufactured for general use. Some of the key features of this multipurpose grease are great water resistance, good corrosion protection, and great mechanical stability. However, this lubricant is best used at lower temperatures, as high temperatures may cause changes in its structure. Today, calcium grease and calcium complex grease are mainly used in marine, industrial, automotive, and agricultural applications.
Lithium grease is a multipurpose grease known for its durability, high viscosity, and stability. It is designed to provide long-lasting protection against oxidation, corrosion, extreme temperatures, and wear and tear. Lithium and lithium complex greases are also characterised by their excellent lubrication, good water resistance, and the ability to withstand high pressure and shock loads. They are suitable for a variety of applications, including automotive, gardening, industrial, household, and demanding metal-to-metal applications.
Aluminium complex grease
Aluminium complex grease has many advantages - it can withstand extremely high temperatures, has impressive water-resisting properties, prevents rust, corrosion, and oxidation, and has good shear stability. Aluminium complex greases are best used in the food industry, but are also known to offer excellent results when used in the automotive, steel milling, construction, and farming industry.
Barium complex grease
Barium complex grease is a high-performance grease widely known for its mechanical stability, high-temperature resistance, ability to withstand heavy loads and high speeds, excellent water tolerance, great oxidation stability, as well as resistance to various chemicals. Barium complex grease is mostly used in demanding, heavy-load applications, such as industrial, aeronautical, marine, and manufacturing applications.
Bentone (clay) grease
Bentone grease is a clay-based lubricant developed with the help of bentonite clay. This grease type is often called non-melt lubricant because it has no known dropping point. Its main properties are temperature change resistance, great wear and tear protection, exceptional water tolerance, good mechanical or shear stability, and impressive adhesiveness. Bentone grease is ideal for highly-demanding applications and it’s typically used in the steel, manufacturing, construction, mining, and ceramic industry.
Polyurea grease has become very popular due to its amazing characteristics, such as outstanding water resistance, great oxidation stability, rust and corrosion prevention, durability, versatility, good mechanical stability, as well as high-temperature performance. Due to these features, polyurea grease is recommended for long-life applications and used across various industries. It is considered vital for proper lubrication of steel plants and electric motors.
Sodium grease is formulated by mixing soda soap with additives and base oils. Such mixture provides solid shear stability, high dropping point, excellent rust protection, and good lubrication, but has poor water resistance and oxidation stability. Due to its drawbacks, sodium grease is now mostly used for lubrication of rolling contact bearings. Moreover, it is commonly mixed with other greases in an effort to produce grease of higher quality and value.
All these seven types of grease can be referred to as multipurpose (MP) greases, extreme pressure (EP) greases, marine greases, heavy-duty greases, specialty greases, automotive greases, industry greases, and so on, depending on the unique properties of base oils, additives, and thickeners used in the process of manufacture.
please attention to greases, Germany DIN standard
Factors to consider when choosing the right grease for your needs
When it comes to purchasing the right type of grease for your
individual application requirements, it’s best to take several factors
into consideration prior to making a final decision.
Base oil represents the foundation of every lubricant and it’s worth mentioning that its type determines the overall performance of the grease in question. Three main types of base oils are mineral, synthetic, and vegetable oils. Synthetic oils are considered to offer the best results in terms of protection, performance, temperature and weather resistance, followed by good shear stability.
Additives are used to enhance the features and qualities of each grease and boost its performance. The most common additives are extreme pressure additives, oxidation, rust, and corrosion inhibitors, polymers used to increase adhesiveness, insoluble solids, and additives that provide increased wear and tear protection. Also, certain dyes and pigments are added to each grease.
Thickeners are used to enable all grease components to bond better, which increases the overall efficiency of every grease. Types of thickeners that are commonly used are simple and complex soaps, which are based on lithium, calcium, aluminium, sodium, and barium compounds. In addition, certain non-soap thickeners, such as those based on clay and polyurea, can be used to give the grease its consistency.
Consistency is a property defined by the National Lubricating Grease Institute (NLGI) used to determine the level of softness or hardness of every grease. Every grease is assigned a specific NLGI number that goes from 000 to 6. These NLGI grades are then used to express the level of consistency each grease has. So, for instance, NLGI grade 000 grease is completely fluid, NLGI grade 0 grease is described as very soft, NLGI 1 grease is soft, NLGI 2 grease is considered normal, NLGI 3 grease is firm, while NLGI 6 grease is defined as very hard.
Grease viscosity determines its ability to remain stable and offer effective protection against friction. Higher viscosity provides greater stability when grease is exposed to heavy, slow loads, while lower viscosity is ideal for high-speed applications.
To sum up
As you can see, the type of grease you decide to use matters a lot.
Each lubricant has a different set of characteristics that determine its consistency, viscosity, ability to prevent friction, reduce wear and tear, protect against rust, corrosion, and oxidation, maintain mobility, and stop water and other contaminants from coming into contact with the equipment.
Take all these factors into consideration before making a purchase and remember - the right grease for you is the one that meets (and surpasses) all the requirements you have.
Grease is a solid or semisolid lubricant formed as a dispersion of thickening agents in a liquid lubricant. Grease generally consists of a soap emulsified with mineral or vegetable oil.
A common feature of greases is that they possess a high initial viscosity, which upon the application of shear, drops to give the effect of an oil-lubricated bearing of approximately the same viscosity as the base oil used in the grease. This change in viscosity is called shear thinning. Grease is sometimes used to describe lubricating materials that are simply soft solids or high viscosity liquids, but these materials do not exhibit the shear-thinning properties characteristic of the classical grease. For example, petroleum jellies such as Vaseline are not generally classified as greases.
Greases are applied to mechanisms that can be lubricated only infrequently and where a lubricating oil would not stay in position. They also act as sealants to prevent ingress of water and incompressible materials. Grease-lubricated bearings have greater frictional characteristics because of their high viscosity.
You, as our dear customer and as our audience, can use our products whenever you like. You can do the process of ordering your desired product according to your opinion and enjoy driving quietly and calmly. Also, our team will contact you immediately and will provide you with the necessary advice regarding any greases .