Rewind Study ResultsTests prove proper repair/rewind practices maintain the efficiency/reliability of Premium Efficiency/IE3 motors.
DOWNLOAD THE EXECUTIVE SUMMARY
Discounted Training OpportunityLooking for cost-effective education? Look to EASA for a limited time offer on deeply discounted bundles of webinar recordings.
Need an Accredited service center?Find a service center that has proven they repair electric motors in accordance with ANSI/EASA's AR100.
VIEW THE LISTLEARN MORE ABOUT THE PROGRAM
ACCREDITED? VIEW YOUR RECORDS
Thank You!For Making EASA 2020 Reimagined a Success
Revisit — or watch for the first time — all the sessions from EASA 2020 Reimagined! 18 great presentations in all!
VIEW THE RECORDINGS
The recordings are also posted individually in the Resource Library.
Engage locallyEASA's international membership is divided into 10 Regions that are made up of 32 Chapters.
EXPLORE CHAPTERS & EVENTS NEAR YOU
Custom-Branded Promotional ItemsLeave a lasting impression with your customers. Visit our co-branded website to order your products online.
SEARCH THE ONLINE STORE
NOTICE: The EASA office will be closed Thursday, Nov. 26 and Friday, Nov. 27 for the Thanksgiving holiday.
When sleeve bearings are rebabbitted or replaced, an important step during assembly is to check the contact between the sleeve bearing and the journal which rides in it. The use of self-aligning sleeve bearings (also called spherical or ball fit) renders this step almost unnecessary. Still, cylindrical sleeve bearings should be inspected to make sure the contact area is sufficient. This article is specific to checking and correcting the wear pattern when installing a new sleeve bearing in an electric motor.
Cuando se rebabitan o se reemplazan cojinetes de deslizamiento, un paso importante durante el montaje consiste en verificar el contacto entre el cojinete y el muñón del eje que monta sobre el. El uso de cojinetes de deslizamiento auto alineables (también denominados esféricos o de ajuste esférico) hace que este paso sea casi innecesario. Aun así, los cojinetes de deslizamiento cilíndricos se deben inspeccionar para verificar que haya suficiente área de contacto. Este es un artículo específico para verificar y corregir el patrón de desgaste al momento de instalar cojinetes nuevos en un motor eléctrico.
There are applications where the end float inherent to a sleeve bearing machine is not desirable, and some means of limiting the axial movement is needed. This is usually accomplished by selecting an appropriate coupling and relying on the driven equipment to prevent axial movement of the motor shaft.
The gear-hub style of coupling can be end-float limited by installing a “hockey-puck” spacer. The grid-style coupling can be limited by spacers inserted on both sides.
Regardless of coupling style, unless the driven equipment has some internal means to limit end float, there are circumstances where some external means of preventing axial movement is needed.
“What’s the proper clearance between a shaft and the sleeve bearing it rides in?” Chances are each of us has a rule of thumb for this, probably related to shaft diameter.
Member question: Can you settle a disagreement about the subject of sleeve bearing clearance? We have several contradictory guidelines, some of them from manufacturers. Which is best?
It is fair to say that our outlook on life is colored by experiences. In our industry, those experiences often are shaped by the customers we serve. A good example is this question about the proper clearance between a shaft and the sleeve bearing it rides in. Chances are each of us has a rule of thumb for bearing clearance, probably related to shaft diameter. They can't all be right, yet many of us may have used one of these rules (probably not the same one, either!) with great success. Which one, if any, is correct? The answer depends on the application.
Have you ever repaired a sleeve bearing motor, only to have the customer complain that it leaks oil? Perhaps the motor had a history of oil leaks, and the windings were oil-saturated when you dismantled it. Two-pole machines are especially notorious as chronic oil leakers. The first step toward correcting an oil leak is to identify the cause.
This 40-page booklet provides great advice for obtaining the longest, most efficient and cost-effective operation from general and definite purpose electric motors.
This booklet covers topics such as:
LEARN MORE AND DOWNLOAD MÁS INFORMACIÓN Y DESCARGAR
READ MORE ABOUT THE FEATURES AND BENEFITS
The EASA Technical Manual is the association's definitive and most complete publication. It's available FREE to members in an online format. Members can also download PDFs of the entire manual or individual sections.
VIEW & DOWNLOAD
Recommended Practice for the Repair of Rotating Electrical Apparatus
This is a must-have guide to the repair of rotating electrical machines. Its purpose is to establish recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.
DOWNLOAD - ENGLISH
Guide for the Repair of Power and Distribution Transformers
This document establishes guidelines for each step of the repair of power transformers, describing record keeping, tests, analysis, and general guidelines for the repair of power transformers.