Alignment of Rotating equipments

[sairaj]

Is there any method of Alignment of pumps and rotating machineries other than RI method FOD method? Conventional and easy way to do alignment?Factors to consider the alignment types

Regards
sairaj

 

[pmover]

depends upon machinery type, but bottom line is, follow mfg recommendations using a skilled/experienced/qualified millwright!

please elaborate meaning of RI method FOD?

good luck and thanks!
-pmover

 

[sairaj]

hi pmover

RI method means Reverse Indicator method and FOD means Face OD method. They are conventionally in use for shaft alighning of rotary equipments


Regards
sairaj

 

[JJPellin]

We do all of our alignments with laser equipment. The systems are expensive (about $15,000US). But they pay for themselves in time savings along. The last time I did a reverse indicator alignment, it took met over 2 hours. The same alignment with laser equipment would have taken perhaps 30 minutes. Time pays for the system, but you also get a better result. Better alignment means less vibration, less load on bearings, longer bearing and seal life. If lasers were not available, I would only consider RI for most applications. The only place I ever saw Rim and Face work well was for a very, very large grid coupling with a small coupling gap on a sleeve bearing motor. For that one it was the best option.

 

[dgallagher]

Actually laser shaft alignment systems for horizontal shaft alignment start at about $4K - higher end models with geometric measurement capabilities can run much higher. Here are links to a broad variety of laser alignment kits:

http://www.maintenanceproductsdirect.com/category_s/74.htm

http://www.reliabilitydirect.com/alignmentproducts/alignmentindex.htm

Dave G.

http://www.ReliabilityDirect.com