Category Archives: Electric Motor Repair

Different Types of Electric Motor Bearings and What They Are Used For

Because the design and uses of electric motors vary across many different industries, there are many different types of bearings used to support them. Here are just a few of them: Basic Ball Bearings Basic ball bearings are used for direct coupled applications. These are commonly seen in non-belted applications in electric motors that are under 150 HP. They can handle both radial and axial loads. Standard Roller Bearings These bearings are specifically designed for radial loads because they cannot handle axial loads. These are used for belted applications in motors with at least 150 HP.

How to Read a NEMA Electric Motor Nameplate

Motor nameplates contain important information about the electric motor that would be difficult to find anywhere else. Factors such as electric motor manufacturing companies using different nameplate formats, dirty and damaged nameplates that obscure information and strange codes and abbreviations on the nameplate make reading them a challenge. This information is critical when performing any sort of electric motor service. Here are a few of the most common identifiers that you will find on most NEMA electric motor nameplates. NEMA Electric Motor Nameplate – Required Information Most e

Why is Motor and Gearbox Alignment Critical?

Early detection of motor and gearbox alignment issues allows problems to be corrected before a component fails. A misaligned electric motor or gearbox can easily damage other connected parts, increasing the time and expense involved in repairs. These failures can create safety hazards and cause unproductive downtime which can be easily prevented. If left unrepaired, alignment problems could give rise to a “cascade failure” where spiking repair costs approach the cost of new equipment, thus “totaling” your valuable equipment. Why Use Infrared Thermographic Studies for Motor and

5 Factors to Consider Before Buying a New Industrial Electric Motor

Buying a new industrial electric motor is a huge investment, and it is important to do your homework before putting money down on one. Here are some factors you should think about before making a purchase: 1  Age of the Motor You Want to Replace The age of the motor is very important in these decisions. Motors manufactured before 2005 are far less efficient than those manufactured after that time. New standards established by the Energy Policy Act of 2005 and the Energy Independence and Security Act of 2007 mandated that electric motors be more energy-efficient, which will save you

What is an Ingress Protection Rating for Electric Motors?

An Ingress Protection rating is a code that classifies and rates the degree of protection provided by an electric motor casing or enclosure against outside contaminants or “intrusion” that is published by the International Electrotechnical Commission.   The IP code is a two or three-digit code that identifies the level of solid particle protection, liquid ingress protection and also any special circumstances about the motor such as oil resistance, weatherproof, etc. This is important information to know if you are getting an industrial motor repair or purchasing a new electric m

4 Factors to Consider When Selecting Electric Motor Bearings

Motor bearings are a critical component of any electric motor, designed to consistently transfer loads from the shaft to the motor and support the rotor. The failure of these bearings typically result in expensive electric motor repairs. Here are some factors you should consider when selecting the best electric motor bearings: Speed The speed of the shaft directly impacts decisions you need to make about selecting the right kind of electric motor bearing. Some of the factors that need to be considered include: Lubricant used Size of the bearing Insulated or uninsulated? Cag

7 Field Services Every Excellent Electric Motor Repair Shop Should Deliver

There are many electric motor repair shops out there, but how do you know which one is right for you? One method you can use to compare them is to look at the “in the field” services that they provide. Here are seven field services every excellent electric motor repair shop should deliver. Availability of Service – 24/7/365 Electric motors never seem to break down during normal, 9 to 5, Monday through Friday business hours. They break down at night, on weekends and over holidays. That is the reality of working with electric motors. They can break down at any time. And you need to h

Repair or Replace? – 6 Things to Think About When Servicing an Electric Motor

Repair or replace an existing electric motor? This is the dilemma that all companies that use them faces from time to time. Both replacing and repairing electric motors is expensive, so how do you determine the best course of action when you find your electric motor out of operation? There are several factors you need to consider before making a decision and you need to gather the information about all of them before making the best choice for your operation. Was There a Bearing Failure? Bearing failures are a common problem with electric motors, and if a bearing failure occurs, it cause

3 Features of NEMA Electrical Motors

We’ve already covered what a NEMA electric motor is in another blog post. NEMA stands for the National Electrical Manufacturers Association and is an organization that was created as part of the Energy Independence and Security Act of 2007 (EISA). The purpose of this organization is to improve motor efficiency in order to reduce the energy and operating costs for industrial, commercial and institutional buildings and, as a result, reduce the amount of electricity consumed by electric motors and reduce pollution. One of NEMA’s goals is make it easier for companies to manufacture elec

What Are Some of the Common Causes of Electrical Motor Repairs?

Because electric motors are used for many different applications and in so many different environments, the number of electric motor repair problems you might encounter may seem limitless, but in fact they tend to break down into several distinct categories: Blown Fuses or Tripped Circuit Breakers These are the most common problems encountered and the easiest ones to fix. Simply flip the breaker or change the fuse and you are back in action. Contamination Another extremely common problem is damage caused to the electric motor by contamination of some sort. Contaminants such as dirt, gr