When it comes to purchasing the proper type of grease in your individual application requirements, it’s greatest to take several factors into consideration previous to making a last decision.

BASE OIL

Base oil represents the foundation of each lubricant and it’s worth mentioning that its type determines the general performance of the grease in question. Three main types of base oils are mineral, synthetic, and vegetable oils. Synthetic oils are considered to offer one of the best results in terms of protection, performance, temperature and weather resistance, followed by good shear stability.

ADDITIVES

Additives are used to reinforce the options 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 elevated wear and tear protection. Additionally, certain dyes and pigments are added to every grease.

THICKENER

Thickeners are used to enable all grease elements to bond better, which will increase the general efficiency of every grease. Types of thickeners which can be commonly used are simple and complicated soaps, which are based on lithium, calcium, aluminium, sodium, and barium compounds. In addition, sure non-soap thickeners, similar to those primarily based on clay and polyurea, can be utilized to present the grease its consistency.

CONSISTENCY

Consistency is a property defined by the National Lubricating Grease Institute (NLGI) used to determine the level of softness or hardness of each grease. Each grease is assigned a selected NLGI number that goes from 000 to 6. These NLGI grades are then used to precise the level of consistency each grease has. So, for instance, NLGI grade 000 grease is totally fluid, NLGI grade 0 grease is described as very soft, NLGI 1 grease is soft, NLGI 2 grease is considered regular, NLGI 3 grease is firm, while NLGI 6 grease is defined as very hard.

VISCOSITY

Grease viscosity determines its ability to stay stable and provide efficient protection in opposition to friction. Higher viscosity provides greater stability when grease is uncovered to heavy, sluggish loads, while lower viscosity is ideal for high-speed applications.

TO SUM UP

As you can see, the type of grease you determine to use matters a lot.

Every lubricant has a different set of traits that decide its consistency, viscosity, ability to prevent friction, reduce wear and tear, protect towards rust, corrosion, and oxidation, preserve 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 appropriate grease for you is the one that meets (and surpasses) all of the requirements you have.

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