Shaft alignment of rotating equipment involves a number of different techniques, each with their strengths and weaknesses. One of these techniques is called the rim and face method. While not universally adopted, it is a very common method of shaft alignment.
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Rim and Face
The rim and face method of shaft alignment involves rotating the shaft of equipment and checking the rim indicator dial and the face indicator dial to see if their measurements match. If they match, then the shaft is properly aligned.
Like the reverse dial, or reverse-rim, method, the rim and face method requires the use of complicated brackets and also requires individuals to correct for bracket slag. This necessitates complex calculations to ensure the process was carried out correctly.
The rim and face method of shaft alignment can be carried out when there is no spool piece. This gives it an advantage over other common alignment methods. It is also useful for complementing (i.e. double checking) the reverse face method of shaft alignment.
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