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  • The basics of lubricating grease and in-use testing The basics of lubricating grease and in-use testingWritten by Amy Rishell and John SanderConclusionTo summarize, used grease samples are typically very small in size, which makes it difficult to get a representative sample for testing. Traditional grease testing methods require large samples, so they ...
  • The basics of lubricating grease and in-use testing The basics of lubricating grease and in-use testingWritten by Amy Rishell and John SanderTestingTesting by ObservationWhether testing in the field or in the lab, these initial observations should be made and recorded first.Color/Appearance – Taking note of color changes of a grease while in-service ...
  • The basics of lubricating grease and in-use testing The basics of lubricating grease and in-use testingWritten by Amy Rishell and John SanderIn-Service Condition MonitoringAnalysis of in-service grease can provide useful information about the condition of the lubricant and the equipment in which it is installed. While condition monitoring of used fluid ...
  • The basics of lubricating grease and in-use testing The basics of lubricating grease and in-use testingWritten by Amy Rishell and John SanderApplications by Thickener TypeGreases are usually marketed and recognized by thickener type. The OEM or manual often will specify that a grease of "X" thickener type is needed for an application. The three basic ...
  • The basics of lubricating grease and in-use testing The basics of lubricating grease and in-use testingWritten by Amy Rishell and John SanderGreaseGrease is used in many different industries, including automotive, chemical, aircraft, manufacturing plants, power generation, and water purification plants. It is used in a variety of applications, including ...
  • The basics of lubricating grease and in-use testing The basics of lubricating grease and in-use testingWritten by Amy Rishell and John SanderIntroductionLubricants are applied to moving equipment for several reasons, including friction reduction, heat removal, corrosion prevention and contaminant removal. The most commonly understood reason lubricants ...
  • Viscosity classification Viscosity classificationSAE-class for Engine Oils and Transmission Oils(SAE = Society of Automative Engineers)ISO-class for Industrial Lubricating Oils(ISO = International Standards Organisation)There have been many different measurement units to express the viscosity or lubricating oils, such as Engler ...
  • Kinematic viscosity Kinematic viscosityKinematic viscosity, with unit measurement mm2/s or centistoke (cSt) is the relationship between dynamic viscosity in mPa and the density of the oil in g/cm3 at the temperature the viscosity is to be measured. Within the oil industry the viscosity is measured by determining the time ...
  • Dynamic viscosity Dynamic viscosityThe viscosity of a fluid can be called absolute or dynamic and has unit measurement mPa or centipois (cP).To precisely produce the dynamic viscosity with the help of a viscosimeter is a complicated and time consuming procedure. The usual way to measure dynamic viscosity at low temperature ...
  • Viscosity ViscosityGeneralViscosity is a measurement of the internal friction of the oil or of its resistance to flow. It does not however give any indication as to the quality of the oil, but is nevertheless perhaps the most significant characteristic of a lubricating oil. The viscosity of the oil should be adapted ...