Posts tagged with: Precision Shaft Alignment

A Little Shim Can Make a Big Difference

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By on February 9, 2015

To the casual observer, precision shaft alignment of large machinery may look like “grunt work” a task that only requires a strong back. But those of us who perform shaft alignment know it is moving big heavy machines to within very small tolerances. As such, small movements can often make big differences in alignment quality. […]

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Don’t Overlook the Hold Down Bolt Washers

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By on January 22, 2015

Anyone involved in precision shaft alignment knows that unintentional movement is the biggest contributor to non-repeatable alignment results. Movement can come from several sources: Soft foot, loose bolts, flexible bases, excessive bearing clearances, improperly mounted or loose sensor mounting hardware, etc. One of the more elusive and least considered sources of movement is cupped washers […]

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Video: Concepts of Shaft Alignment – Bearing Clearances


By on December 16, 2014

Another video in VibrAlign’s “Concepts of Shaft Alignment” video series is titled “Bearing Clearances”   The video illustrates radial and axial bearing clearances which can affect the precision shaft alignment process. The video was based on ideas for visualizing alignment created by David Zdrojewski, CEO of VibrAlign.  According to Zdrojewski, “One of my passions is […]

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OL2R – The True Measure of a Machine’s Movement

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By on December 11, 2014

OL2R is the acronym for OffLine 2 Running. OL2R is an optional program and special precision bracket set that is available for the Fixturlaser NXA Pro & Ultimate (also XA Pro & Ultimate). This option allows the shaft aligner to accurately measure vertical AND horizontal changes of machines from a static (OffLine) position to a […]

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“Electrical Pipe Strain?”

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By on November 6, 2014

Precision shaft alignment of rotating equipment is an essential part of any solid preventative maintenance program. To accommodate aligning any type of machinery you must be able to move one of the elements of the machine to achieve a precision shaft alignment. There are many limiting influences that could cause you to not be able […]

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Setting up OL2R (Offline To Running) and Offset (Cardan) Brackets

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By on October 29, 2014

OL2R Measurements (Offline To Running) are used to collect very accurate (and actual) Thermal Growth Values and Targets for critical rotating machinery. Offset Measurements (Cardan Shaft) are critical for offset drives to ensure there is no angular misalignment causing lead/lag issues with the drive shafts resulting in production related quality problems. Both the OL2R and […]

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Loosen the Hold Down Bolts to Lower the Motor! ??

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By on August 22, 2014

While assisting a recent Fixturlaser NXA Training Class with a precision shaft alignment we came across an unusual alignment challenge.  When tightening the hold down bolts, after making a Verti-Zontal Compound MoveTM, we were seeing insignificant amounts of horizontal movement at the motor feet but nothing unusual. However, upon rechecking the alignment, we were out of […]

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In Laser Alignment, Size Matters!

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By on May 8, 2014

When performing precision shaft alignment, regardless of the measuring tools being used, size matters.  Many coupled machines have obstructions around the couplings, such as transmitters, oil or cooling lines, conduit clamps, and many other components which can make precision laser shaft alignment challenging. Fixturlaser’s new generation Bluetooth sensors (pictured on the left above) are the […]

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