Lubricating greases

Lubricating greases consist of a mineral or synthetic oil combined with a thickener. The thickeners are usually metallic soaps. However, other thickeners like polyurea are also available, and can be used in applications where there are, for example, high temperatures. Additives are also included to enhance certain properties of the grease. The consistency of the grease depends largely on the type and concentration of the thickener, and on the operating temperature of the application. When selecting a grease, the most important factors to be considered are:
  • temperature range
  • consistency
  • base oil viscosity
  • consideration for outer ring rotation
  • protection against corrosion
  • load carrying ability
  • miscibility
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