Reverse Dial Alignment

Mis-alignment can be the most usual cause for unacceptable operation and high vibration levels. New facilities or new equipment installations are often plagued by improper alignment conditions.

Many methods are used to align machinery. The simplest method is using a straight edge to bring the machines into rough alignment. A rough alignment is necessary due to the range limitations of the dial indicators. A popular method used for years and is still in use today is the rim and face method. This method produces acceptable results, but is less accurate than the reverse dial indicator method covered in this application note. Additionally, reverse dial alignment does not require removal of the coupling to collect data.