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Lubrication - Grease
Edward Brunet, Jr., P.E.
Overview
Grease is used for lubrication of contact surfaces where it
is not practical or convenient to use oil. Grease is typically used for
applications where its consistency allows it to remain in place, whereas oil
would seep away. An example is machinery that is run intermittently or is
placed in storage for long periods of time. Grease is also used where it
is difficult or inconvenient to access for frequent oil lubrication, such as
sealed-for-life electrical motor bearings. As with other lubricants,
improper selection of grease for an application can lead to inadequate machinery
performance and premature wear and failure of components.
In this course, the student will study the basics of grease
selection. The course will cover Chapter 5, "Grease" in
the US Army Corps of Engineers document EM 1110-2-1424, "Lubricants and Hydraulic
Fluids".
The student must take a multiple-choice quiz consisting of
ten questions at the end of
this course to obtain PDH credits.
Specific Knowledge or Skill Attained
This course teaches the following specific knowledge and
skills:
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Function and applications for grease, as well as the
relative merits of grease and lubricating oils.
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Characteristics of grease including consistency,
apparent viscosity, corrosion resistance, rust resistance, dropping point,
shear stability, oxidation stability and texture.
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Effects of temperature and pressure on grease.
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Fluid lubricants and types of thickeners used in grease.
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Composition and characteristics of complex soap grease.
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Types of commonly used greases and their characteristics
and typical applications.
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ASTM testing methods for grease characteristics
Course
Click on the following PDF attachment and review Chapter 4, "Hydraulic
Fluids" from the US Army Corps of Engineers document EM 1110-2-1424,
"Lubricants and Hydraulic Fluids" prior to taking a quiz for credit.
"Grease" (66 KB)
Having Trouble Downloading the PDF File?
Right click on the link. Select "Save Target As..."
Then save on your desktop. To view the file, double click the icon on your
desktop and return to this page to take the quiz.
You may need Acrobat Reader to view this document.
Click on the link below to download a free copy of Acrobat Reader.
To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
(To take the quiz,
your web browser must be set to accept cookies. See how to
check your cookie settings.)
 
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Related Books
Applied Tribology : Bearing Design and
Lubrication
Lubrication and Reliability Handbook
Lubrication for Industry
Lubricants in Operation
Tribology Data Handbook: An Excellent Friction, Lubrication, and Wear
Resource
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