When it comes to buying the precise type of grease to your individual application requirements, it’s finest to take several factors into consideration previous to making a closing decision.
Base oil represents the muse of every lubricant and it’s worth mentioning that its type determines the overall performance of the grease in question. Three important types of base oils are mineral, artificial, and vegetable oils. Synthetic oils are considered to supply the perfect outcomes when it comes to protection, performance, temperature and climate resistance, adopted by good shear stability.
Additives are used to boost the options and qualities of each grease and boost its performance. The most common additives are excessive pressure additives, oxidation, rust, and corrosion inhibitors, polymers used to extend adhesiveness, insoluble solids, and additives that provide elevated wear and tear protection. Additionally, certain dyes and pigments are added to each grease.
Thickeners are used to enable all grease elements to bond higher, which increases the overall effectivity of each grease. Types of thickeners which can be commonly used are easy and sophisticated soaps, which are based mostly on lithium, calcium, aluminium, sodium, and barium compounds. In addition, certain non-soap thickeners, reminiscent of those primarily based on clay and polyurea, can be utilized to provide 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 each grease. Each grease is assigned a selected NLGI number that goes from 000 to 6. These NLGI grades are then used to specific the level of consistency every grease has. So, for instance, NLGI grade 000 grease is completely fluid, NLGI grade zero 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.
Grease viscosity determines its ability to remain stable and provide effective protection against friction. Higher viscosity provides larger stability when grease is uncovered to heavy, gradual loads, while lower viscosity is right for high-speed applications.
TO SUM UP
As you’ll be able to see, the type of grease you resolve to make use of matters a lot.
Every lubricant has a unique set of traits that decide its consistency, viscosity, ability to stop friction, reduce wear and tear, protect in opposition to 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 best grease for you is the one which meets (and surpasses) all the requirements you have.
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