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The procedure for aligning two rotating machines requires measuring their relative shaft positions and adjusting one or both machines. Until recently, though, how closely the shafts need to be aligned was an open question. That changed with the publication of American National Standards Institute/Acoustical Society of America (ANSI/ASA) standard 2.75-17.
This 94-page handbook (3.5" x 6", 9cm x 15cm) contains carefully selected materials designed to assist repair firms in their everyday work. Just as important, your customers and potential customers can use this pocket handbook as a handy reference for mechanical data for motors and driven equipment.
This presentation covers:
Two case histories point out the need for caution when working with metal sprayed shafts:
The paper "Steel—Metallurgy and Practical Application of Various Grades of Steel" by Gene Vogel, presented at the EASA Convention 2016, provides an in-depth exploration of steel alloys, their composition, processing, and applications, particularly in the context of machinery repairs and replacement shafts. Vogel emphasizes the importance of selecting the appropriate type or grade of steel for specific applications, drawing on both practical application information and technical metallurgy theory.
“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.
This technical paper, presented at the 2014 EASA Convention, will help you understand how and why shafts and fasteners fail.
When a shaft is in need of repair, often the frst step is to determine the corrective method required. Economics and best practices are typically significant factors in the decision-making process in selecting the method of repair. The types of shaft repairs that will be dealt with here are: opposite drive end bearing journal, drive end bearing journal and bent shaft. The objective is not to detail the repair processes, but to identify the most common methods appropriate to the types of repair and considerations associated with each method.
The slender dimensions of many pump shafts make them susceptible to distortion, which affects pump performance and reliability. This presentation provides a methodical approach and effective techniques for measuring and correcting shafts which are bent or twisted.
Like most maintenance and repair tasks, a successful outcome is generally predicated on good planning and preparation. The first steps in the process are often the most critical.
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:
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The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.
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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.
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Revised May 2024 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.
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