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Grease

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Information @ a Glance

  • A grease is a solid to semi fluid product of a thickening agent in the lubricant.
  • We can find the application of Grease on areas where continuous supply of oil cannot be retained, such as open bearings or gears.
  • Factors to be considered when selecting a suitable grease are water resistance, operating temperatures, oxidation stability etc.
  • The second factor and more  important, are the grease's characteristics, including viscosity and consistency.
  • When the grease oxidizes, it is used to get dark.
  • A lubricating grease consists of a base oil, performance additives and a thickener which forms a matrix that retains the oil in a semisolid state.
  • Most of the grease thickeners are soaps, i.e. lithium, calcium, or aluminium soap.
  • Use of a grease converter is more acceptable than chemicals or detergents which merely move grease downstream to become a problem for someone's else.
  • Most of the grease used for automotive applications are lithium or lithium-complex greases.
  • Greases can be applied directly to the screw threads near the root of the ball track or pumped directly into the ball nut if lube holes are available.
  • It is recommended that wipers be used to contain the lubricant within the body of the ball nut.
  • Grease is a complex subject.
  • Greases consist of mineral or synthetic oil, additives, and a thickening agent such as lithium, bentonite, aluminum, and barium complexes.
  • National Lubricating Grease Institute (NLGI) Grade is a widely used classification for lubricating greases.
  • Greases are classified into nine grades based on their consistency.
  • The great majority of present-day lubricating greases are produced in some kind of a saponification process where most of the manufacturing parameters are predetermined by the reaction mechanisms necessary for the particular soap in question.
  • The saponification process is carried out in two different types of production units, in batch production, in open or pressurised kettles or so-called “Contactor”, or alternatively in continuous production through small reaction chambers.
  • The manufacturing of lubricating greases on a large scale involves, more often than not, a complicated saponification process requiring an extremely high investment in capital resources and manpower.
  • In the industrialised world, approximately 70% of the grease consumed today is based on the thickeners using lithium technology.
  • The patent-pending clear tubes ensure 100% visual grease identification for users, thereby avoiding costly grease cross-contamination errors.
  • Through the Grease Lightening project, fats, oils and grease are being collected and recycled from households and small businesses.

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