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NOTICE: EASA Technical Support Staff will be attending the EASA Convention June 25-28. Technical inquiries should be submitted using using one of the online support forms or at technicalsupport@easa.com

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Resource Library

The Shape of What’s Shaking

Identify and visualize natural frequencies that cause resonance

  • May 2022
  • Number of views: 398
  • Article rating: No rating
Trade press article — Plant Engineering

This webcast will focus on identifying resonance and then move to methods that help visualize the vibratory motion, helping to identify solutions.

Vibration Spectrum Analysis Tips

  • December 2021
  • Number of views: 3586
  • Article rating: 3.0
Article

The most basic tool a vibration analyst uses is the vibration spectrum. The spectrum is a graphic illustration of the frequencies present in a vibration signal and their relative amplitudes. This article provides a basic overview, examines settings and provides tips.

Consejos para Analizar los Espectros de Vibración

  • December 2021
  • Number of views: 3416
  • Article rating: No rating
Article
La herramienta más básica que utiliza un analista de vibraciones es el espectro de vibraciones. El espectro es una ilustración gráfica de las frecuencias presentes en una señal de vibración y sus amplitudes relativas. Este artículo proporciona una descripción general básica, examina la configuración y ofrece sugerencias.

EASA Technical Manual

  • May 2021
  • Number of views: 20769
  • Article rating: 3.6
FREE for Members of EASA
Book

Revised May 2021!
EASA's most comprehensive technical document is available FREE to EASA members. Download the complete manual or just the sections you're interested in.

Dynamic Balancing on Pump Impellers

  • February 2021
  • Number of views: 9249
  • Article rating: No rating
Article

As with most other machines commonly repaired in EASA service centers, dynamic balancing on pump impellers is an important concern. Excessive imbalance imparts forces on bearings, reducing their lives and subjecting machine mountings to vibratory energy that deteriorates foundations.

Balanceo Dinámico de los Impulsores de las Bombas

  • February 2021
  • Number of views: 7980
  • Article rating: 1.7
Article

Al igual que con la mayoría de las otras máquinas reparadas comúnmente en los centros de servicio de EASA, el balanceo dinámico de los impulsores de las bombas es una cuestión importante. El desbalanceo excesivo imparte fuerzas sobre los rodamientos, reduciendo su vida útil y sometiendo los soportes de las máquinas a una energía vibratoria que deteriora las fundaciones.

Natural Frequency Testing – Bump Tests and Modal Analysis

  • October 2020
  • Number of views: 8494
  • Article rating: 4.8
FREE for Members of EASA
Webinar recording

Anyone dealing with installed machinery, or even test running motors in the service center, will encounter instances where structural resonance is amplifying machine vibration. The machine may meet stringent specifications in one instance but exceed acceptable vibration levels in another. A good understanding of natural frequencies and the tests necessary to identify them will help solve these vexing situations.

Vibration and Alignment

  • April 2020
  • Number of views: 9524
  • Article rating: No rating
Webinar recording bundle

A special discounted collection of 9 webinar recordings focusing on a wide variety of vibration, balancing and alignment topics.

Just $45 for EASA members!

Principles of Medium & Large AC Motors, 1st Edition - IEC

  • February 2020
  • Number of views: 46283
  • Article rating: 5.0
Book

This manual covers horizontal and vertical squirrel-cage induction motors in the 300 to 5,000 horsepower range, low- and medium-voltage. Most of the principles covered apply to other sizes as well. This manual focuses primarily on IEC motors and standards.

An Overview of Vibration Tolerances

  • August 2019
  • Number of views: 3995
  • Article rating: 5.0
Webinar recording

When it comes to machine vibration, “how much is too much” depends on a number of factors. Knowing which standard and/or tolerance applies requires a working knowledge of the standards and some basics of vibration terminology.

Getting The Most From Your Electric Motors

Getting The Most From Your Electric Motors - coverThis 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:

  • Installation, startup and baseline information
  • Operational monitoring and maintenance
  • Motor and baseline installation data
  • How to read a motor nameplate
  • Motor storage recommendations

LEARN MORE AND DOWNLOAD MÁS INFORMACIÓN Y DESCARGAR BUY PRINTED COPIES

READ MORE ABOUT THE FEATURES AND BENEFITS

EASA/AEMT Rewind Study

EASA Rewind Study cover

The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

DOWNLOAD THE FULL RESULTS

ANSI/EASA AR100-2020

ANSI/EASA AR100-2015 cover

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

DESCARGAR - ESPAÑOL

EASA Technical Manual

EASA Technical Manual cover

Revised May 2021
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