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pie chart of motor components to watch to predict and prevent failure

Greasing Electric Motor Ball Bearings

July 8, 2016

Before reading this article, please first read our article on Ball Bearing types and options. That is the first article in this series of articles on electric motor ball bearings. This article is focusing on some factors to consider when greasing ball bearing motors. There is a variety of useful information in this article, but …

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Electric Motor Ball Bearings Types & Options

June 29, 2016

Most electric motors in industrial facilities consist of rolling element bearings, either ball bearings or roller bearings. We will explore these different types of bearings and sealing methods in this article. Ball Bearing Used in direct coupled applications. These can handle axial as well as radial loads. Roller Bearing Used for belted applications, generally in …

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Insulating Electric Motors: VPI or Varnish Dip?

May 19, 2016

VPI (Vacuum Pressure Impregnation) is a process that is a technological step forward from varnishing electric motors. The old dip and bake (in varnish) method of “insulating” motors is replaced by the VPI process for specific reasons: Harsh Environment Improved Efficiency (through better heat transfer) Improved Mechanical Winding Design When electric motor repairs proceed as …

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Electric Motor Repair vs Replacement – How to Choose?

May 2, 2016

What’s up with motors? Motors are reliable as can be when managed and maintained properly. To a point. Then they still fail. It’s up to you to then make decisions quickly and get production running again Here’s the rub. You need to realize that the decisions made during these times can significantly impact future reliability …

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Apples, Oranges, and Above-NEMA (A-NEMA) Large Electric Motors

April 6, 2016

Large electric motors, those of 400HP or more, are typically referred to as Above-NEMA or A-NEMA electric motors. When it comes time to purchase one (either new or previously owned), it’s vitally important that when bidding manufacturer to manufacturer, they are all given the same parameters. There is tremendous value in saying “This is what …

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How Long Should Electric Motor Repair Take?

March 21, 2016

“So, how long will it take?” That’s often the first question when someone sends an electric motor out for repair. Fair enough. Is it a matter of days or are we talking weeks? How long should it be expected to be out of commission? But here’s the deal. Before your repair shop answers that question, …

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Predictive Maintenance Services Adds Life to Plant Equipment

February 2, 2016

Electric motors are the heart of your plant. If they stop working, an entire line could, well, die. Just like diagnostic testing in the medical field can increase life expectancy, reliability testing in industry can extend the life of your plant equipment. The parallels between medical diagnostic testing and industrial predictive services are numerous. Just …

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How Much Does It Cost To Repair An Electric Motor?

January 25, 2016

That seems like a simple question, doesn’t it? If I have a motor that fails, how much will it cost to have it fixed? What could be simpler? Well, while the question is simple, the answer…not so much. Before any electric motor repair shop can give you an accurate estimate, they should have some questions …

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