what is grease

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what is grease what is grease “a solid to semifluid product of dispersion of a thickening agent in liquid lubricant. other ingredients imparting special properties may be included“ it 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. it is simply a lubricating fluid which has been gelled with a thickening agent. + + = 70-95% base oil 3-30 % thickener 10 % additives lubricating grease by polatov nurlibek function of grease heat dissipation corrosion protection contaminant removal provide a seal preventing environment ingress it delivers oil via a thickness matrix ( oil reservoir) & keep oil in place. fluid level does not have to be controlled and monitored. technical terminology used for grease base oil: the lubricant dispersed in thickener, most greases use mineral based …
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ease institute) in the range of 000 to 6. dropping point: the temperature at which a grease becomes fluid enough to drip it indicates the upper temperature limit at which a grease retains its structure. oxidation stability: ability to resist a chemical union with oxygen, which will lead to the formation of insoluble gums & sludges. technical terminology used for grease nlgi grading of grease nlgi stands for national lubricating grease institute. nlgi classification define 09 (nine grades), each determined by the cone penetration test of lubricating grease. the apparatus consists of a closed container and a piston-like perforated plunger to allow grease to flow. the test grease is inserted into the container and the plunger is stroked 60 times. the container & grease are maintained at a temperature of 25 °c. nlgi consistency numbers nlgi no astm ( 60 strokes penetration at 25 deg c, (1/10 of mm) appearance …
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what is grease what is grease “a solid to semifluid product of dispersion of a thickening agent in liquid lubricant. other ingredients imparting special properties may be included“ it 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. it is simply a lubricating fluid which has been gelled with a thickening agent. + + = 70-95% base oil 3-30 % thickener 10 % additives lubricating grease by polatov nurlibek function of grease heat dissipation corrosion protection contaminant removal provide a seal preventing environment ingress it delivers oil via a thickness matrix ( oil reservoir) & keep …

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