Controlled thermal movement aids coupling alignment

Shaft alignment is a critical component in keeping a coupling aligned. While most couplings can tolerate some misalignment, they operate much more efficiently and with much longer service lives when simple precautions and procedures are in place. One area of potential misalignment -- yet one that is...

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Bibliographic Details
Published in:Plant Engineering 2006-07, Vol.60 (7), p.46
Main Author: Boyle, Bob
Format: Magazinearticle
Language:English
Subjects:
Accuracy
Boyle, Bob
Conferences, meetings and seminars
Couplings
Growth factors
Machinery
Machinery industry
Management
Mechanical engineering
Production processes
Repair & maintenance
Services
Shafting
Thermocouples
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Summary:Shaft alignment is a critical component in keeping a coupling aligned. While most couplings can tolerate some misalignment, they operate much more efficiently and with much longer service lives when simple precautions and procedures are in place. One area of potential misalignment -- yet one that is fairly simple to address -- is that of thermal movement. There are many ways to move machinery to align rotating equipment, and all must be controlled and accurate. Alignment specialists continually discuss whether vertical or horizontal moves should be made first. Dial indicators are not required to determine any change in the vertical direction, but they can be helpful to check for any spring effect or soft foot created when moving the machine. The preferred and most accurate method for measuring the horizontal move is to place dial indicators around the machine in the planes of the feet.
ISSN:0032-082X
1558-2957