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Desiccant Keeps Moisture Out of Your Electric Motors
A desiccant is a substance that induces or sustains a state of dryness in its local area, in a moderately sealed container. It is used to trap moisture from the air, thereby maintaining humidity levels...
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GreaseMax Solves Electric Motor Lubrication Issues
Lubrication improvements can significantly assist in increasing the life and reliability of electric motors.Premature motor failure is likely to be caused by bearing failure, for which lubrication is a...
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Electric Motor Bearing Lubrication Faces New Challenges
The past 10 years have seen a quiet revolution in electric motor bearing relubrication. Adherence to fundamentally sound practices, such as ensuring work area cleanliness during relube and following...
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Developing a Motor Bearing Regreasing Strategy
Question You have just been hired as a maintenance engineer for a large manufacturing plant. The plant has a history of never greasing electric motor bearings, believing that this practice does more...
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Lubrication Strategies for Electric Motor Bearings
The proprietary in-house statistics of a number of petrochemical plants in the United States indicate that approximately 60 percent of all motor difficulties originate with bearing troubles. If a...
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Vibration Analysis Pinpoints Inadequate Motor Bearing Lubrication
Rolling element bearings are among the most important components in the vast majority of machines, and exacting demands are made upon their carrying capacity and reliability. The continued research...
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Oil Mist-lubricated Pumps and Electric Motors
A few years ago, a well-known lubricant and services provider conducted a survey of eight large U.S. Gulf Coast oil refineries relating to their oil consumption, mean-time-between-failure (MTBF) and...
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Electric Motor Lubrication
Rolling element bearings used in electric motors are at risk for various modes of failure if an incorrect maintenance or lubrication strategy is implemented. These include incorrect lubricant...
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Grease-lubricated Electric Motors: A New Perspective
Over the past few years, there has been a renewed interest in the industry regarding the proper lubrication methods for grease-lubricated electric motors. This article reviews the results from...
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Lubricating Electric Motors
In a previous article for Machinery Lubrication magazine on the subject of electric motor lubrication, all of the static and dynamic test results were run on what was considered the industry-leading...
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General Guidelines to Starting an Electric Motor Lube Program
Rolling-element bearings used in electric motors potentially have many failure modes if an incorrect strategy is implemented. These modes include incorrect lubricant selection, contamination, loss of...
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Lubricating Electric Motors
In a previous article published in the November 2007 issue of Machinery Lubrication, titled "Electric Motor Lubrication", I mentioned the use of acoustic monitoring as a feedback tool for refining...
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Reducing Motor Bearing Failures
Overgreasing rolling element bearings in motors has been an industry problem for several years. More motors have bearing failures due to overgreasing than from undergreasing. For the nuclear power...
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Lubrication Program Improvements at Eli Lilly
At the Eli Lilly and Company plant site in Indianapolis, Ind., the regreasing of motors and other bearings was a real problem because few people really understood the importance of proper lubrication....
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Controlling Pressure While Greasing Bearings
Shut-off Grease Fitting Prevents over-pressurization during greasing. Shuts off flow at 50-110 psi. When pressure relieves grease flow can resume. Relief-type Vent PlugsThese fittings are installed in...
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The Basics of an Electric Motor Regrease Program
The rolling element bearings used in electric motors potentially have many modes of failure if an incorrect strategy is implemented. These modes include incorrect lubricant selection, contamination,...
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Improving Electric Motor Lubrication Policies
Electric motors – more specifically, greased-lubricated electric motors – are the prime movers for most machines in plants and factories. Usually, motors that are larger than 25 horsepower in size...
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Pre-lubrication Procedure for EMD Locomotives
This video shows the type of pre-lubrication that is required if an EMD locomotive has been shut down for more than 48 hours. Step-by-step instructions detail how to open the engine sump cover, insert...
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Avoiding Grease Incompatibility Problems
"We recently switched electric motor rebuild shops. Since switching, a number of bearings have failed, typically just a few months after putting the motor back into service. For the most part, these...
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Developing an Effective Motor Bearing Regreasing Strategy
Our large manufacturing plant has a history of never greasing electric motor bearings because management believes this practice does more harm than good. The plant has a mix of motors, some of which...
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