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2. NLGI consistency number - Wikipedia

   en.wikipedia.org/wiki/NLGI_consistency_number

   Common greases are in the range 1 through 3. Those with a NLGI No. of 000 to 1 are used in low viscosity applications. Examples include enclosed gear drives operating at low speeds and open gearing. Grades 0, 1 and 2 are used in highly loaded gearing. Grades 1 through 4 are often used in rolling contact bearings. Greases with a higher number ...

3. National Lubricating Grease Institute - Wikipedia

   en.wikipedia.org/wiki/National_Lubricating...

   The measure of the consistency of a lubricating grease is commonly expressed by its NLGI consistency number, defined by the NLGI in the “standard classification of lubricating grease”. The NLGI consistency number is used in several standards: ASTM D4950, SAE J310 and ISO 6743-9 “lubricants, industrial oils and related products (class L ...

4. Grease (lubricant) - Wikipedia

   en.wikipedia.org/wiki/Grease_(lubricant)

   A true grease consists of an oil or other fluid lubricant that is mixed with a thickener, typically a soap, to form a solid or semisolid. [1] Greases are usually shear-thinning or pseudo-plastic fluids, which means that the viscosity of the fluid is reduced under shear stress.

5. DN factor - Wikipedia

   en.wikipedia.org/wiki/DN_Factor

   Viscosity is quantified according to the National Lubricating Grease Institute (NLGI) consistency number, which is regarded as the standard measure of grease thickness. Knowing the DN factor of a bearing is critical to preventing lubricant starvation, which is characterized by decreasing lubricant film thickness coupled with increased bearing ...

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7. Lubricant - Wikipedia

   en.wikipedia.org/wiki/Lubricant

   In 2008, the biolubricant market was around 1% of UK lubricant sales in a total lubricant market of 840,000 tonnes/year. [ 12 ] As of 2020 [update] , researchers at Australia's CSIRO have been studying safflower oil as an engine lubricant, finding superior performance and lower emissions than petroleum -based lubricants in applications such as ...