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Best Practices for Using Grease for Bearing Lubrication


The best way to reduce your need for electric motor service is to protect the bearings of your electric motors, and one of the easiest ways to do this is to make sure that the bearings for that motor are always adequately lubricated. Most electric motor bearings use grease for lubrication (although some use lubricating oil). But there are a few things you need to know about using grease for the bearing lubrication process. Use the Correct Grease When it comes to using grease for lubrication, one size does not fit all. Always use the grease recommended by the manufacturer of the electric moto


7 Factors That Impact Bearing Lubrication Effectiveness in Electric Motors


According to a study performed by the Noria Corporation, the number one root cause of electric motor failure is bearings. At 51% this cause of failure far exceeds the number two reasons–windings and external sources– both at 16% each. And the best way to protect your bearings from wear and tear is to have a regular bearing lubrication schedule in place as part of your electric motor preventive maintenance program. Although your electric motor manufacturer’s recommendations should always be the final word on how often you need to apply lubrication to your motor bearings, there are


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


5 Electric Motor Preventive Maintenance Services You Should Perform Annually


Everyone knows that performing preventive maintenance on your electric motors is critical to make sure that they continue to run smoothly and reduce the number and frequency of unplanned work stoppages due to equipment failure. But what sort of services should you perform each year? Physical Inspection A lot can be discovered by being physically near an electric motor. Information such as: Conditions of the operating area near the motor–Is it dirty? Damp? Very dry? The conditions in the workspace might indicate possible problems with the motor working within it. Visual inspection o


Benefits of Buying a Yaskawa Variable Frequency Drive


Yaskawa is an industry leader when it comes to manufacturing AC Inverter Drives, Servo and Motion Control, and Robotics Automation Systems. Yaskawa has gone from producing basic three-phase induction motors and low-voltage magnetic contactors over 90 years ago, to manufacturing state-of-the-art inverter drives that are the leaders in the industry when it comes to power quality and energy savings. Here are a few of the benefits of purchasing a Yaskawa variable frequency drive. Products for Every Industry and Need Yaskawa variable frequency drives are used in a variety of industries. Manuf


What Are Some of the Most Common Hoist Problems Encountered in Overhead Cranes?


Your hoist is the most important part of keeping your overhead crane in tip-top working order. But in order to keep it that way you always need to be on the lookout for the following issues: Abrasion Abrasion is an extremely common issue with the hoists on overhead cranes mainly because it is a very subtle process. It is often the result of poor lubrication which causes vulnerable areas of your hoist, such as chains, wire, joints and any other moving parts to be damaged. The best way to spot abrasion is to look for shiny surfaces that indicate two surfaces rubbing together. Looking for t


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


Why Should You Get a Line and Load Check?


A line and load check is an important part of any electric motor preventative or predictive maintenance program. The first thing you need to understand is what the words “line” and “load” mean to individuals working in the electrical trades. The “line” generally refers to the wires that bring power (electricity) from the source to a device. Some people also refer to the “line” as “incoming” or “upstream” as well. The “load” refers to wires that carry power to other devices along the circuit. These are also known as “outgoing” or “downstream” wires. Bo


What Types of Problems Can Be Detected Using Ultrasonic Motor Testing?


Ultrasonic motor testing (AKA - motor vibration analysis) is an excellent “nondestructive” means of finding possible problems with the operation of your electric motor before it becomes a serious problem. What is a nondestructive testing? It is a group of testing methods that evaluate the properties of a particular object without causing any damage. A lot of nondestructive tests can be performed while the unit is still in operation. What Problems Can Motor Vibration Analysis Detect? Ultrasonic testing uses a lightweight ultrasonic translator to listen for possible problems in the


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