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September - October 2014
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The Effects of Heat
Exchangers on Oil
Heat exchangers are often used on
equipment to cool the system. Many are
installed at the factory depending on the
size or criticality of the machine. For these
types of equipment, the maintenance staff
must keep the heat exchanger operating
within a certain parameter. If these param-
eters are exceeded, the equipment will
eventually go down. Read
this article on the ML site to find out what
effect heat exchangers can have on oil and
equipment life.
Measuring Relative Density
of Lubricants
Density plays a critical role in how a
lubricant functions as well as how machines
perform. Most systems are designed to
pump a fluid of a specific density, so as the
density begins to change, the efficiency of
the pump begins to change as well. Check
out this article on the ML site to discover
how solid particles are affected by the
density of a fluid along with contaminants
such as air and water.
Sampling Wet Sump
Circulating Systems
If a system has circulating fluid, you
want to take advantage of that circulation
and fluid under pressure to get a live-zone
sample. This video shows where a sample
port should be installed in wet sump
circulating systems to prevent the filter
from robbing data from the sample.
Access this 4-minute, 29-second video
at www.MachineryLubrication.com.
Controlling Water Damage
in Bearings
Rolling-element bearings are among the
most sensitive components used in machines
with regards to water contamination. In
fact, bearings can lose 75 percent of their
life due to water damage before an oil
becomes cloudy. Rolling-element bearings
are sensitive not only to emulsified water
but also to dissolved water. Access this
59-second video at www.MachineryLubri-
cation.com to understand the importance
of controlling water contamination.
Common Causes
of Machine Failures
Machines fail for a variety of reasons.
Likewise, not all failures are the same. The
term "machinery failure" or "malfunction"
usually implies that the machine has
stopped functioning the way in which it was
intended or designed. This is referred to as
"loss of usefulness" of the machine or
component. Learn the three main catego-
ries of this loss of usefulness by reading this
article on the ML site.
MACHINeryLUbrICATIoN.
CoM IS THe pLACe To TUrN
For WHITe pAperS on a host
of lubrication-related topics. Here's
a sampling of the latest white
papers that are currently available
for download:
• Continuing evolution of
Food-grade Lubricants
• particle Counters for oil Analysis:
design and Specifications
• Winning the War on Water
Contamination
Check out the full list of white
papers by visiting www.Machin-
eryLubrication.com and clicking on
the "White papers" link.
of lubrication professionals say
premature lubricant failure is
a problem at their plant,
according to a recent survey at
MachineryLubrication.com
FEATuRED WHITE PAPERS
FINd More greAT ArTICLeS ANd CoNTeNT FroM Machinery Lubrication magazine
online. From Web exclusives and industry news to videos, white papers, buyer's guides and more,
everything that relates to machinery lubrication is available now on www.MachineryLubrication.com.
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