Shaft Alignment

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By on November 14, 2018

This month marks my 41st year of being involved in industrial maintenance. Early on during my apprenticeship in a machine shop, as an outside machinist, I thought living long enough to know everything was not going to be possible. Even now I am reminded of this from time to time. I am also reminded that […]

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All about Couplings: Small but Significant Factors in Alignment

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By on November 9, 2018

Couplings connect a driving shaft to a driven shaft. There are essentially two families of couplings: Rigid couplings Flexible couplings There are, of course, differentiations within these two types. Rigid couplings connect shafts so that the two shafts are essentially one continuous unit. Be advised that runout can be an issue when this kind of […]

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Know Your Alignment Tolerance

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By on October 15, 2018

VibrAlign and Fixturlaser have done what we can to make the precision shaft alignment process quicker and easier for the end user of our tools. To assist maintenance personnel during an alignment a tolerance table “pops up” on the display unit screen (of our tools) when entering dimensions for the machines being aligned. The tolerances […]

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Maintaining Engine and Compressor Crankshaft End Play (Thrust)

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By on October 3, 2018

Gas engines and reciprocating compressors, used in the gas compression industry, have a certain amount of crankshaft end play or thrust (as it’s commonly called). The amount of thrust is determined by the OEMs of the machines. The crankshafts of these machines must be able to “float” axially to prevent excessive/premature bearing wear. When new […]

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Compressor Rod Runout with the NXA Runout Probe

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By on September 27, 2018

The Fixturlaser NXA Runout Probe was introduced last year as an accessory to the Fixturlaser NXA Pro and Ultimate alignment tools.  As originally envisioned, the runout probe was designed with shaft and coupling runout measurements, and direct soft foot measurements in mind. The Runout Probe provides a digital linear displacement measurement, much like a dial […]

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Installation Errors Part 4 – Hold Down & Jacking Bolts

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By on September 20, 2018

Correct fastener torque is important for proper assembly of rotating machinery components to machine bases. Proper torque insures that the fastener will perform as designed. This will in turn help your machine to perform as designed. Hold down bolts and jacking bolts are typically manipulated while performing a precision shaft alignment. These are often the […]

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Vertical Alignments Using the Fixturlaser NXA Pro OmniView

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By on September 14, 2018

Many modern laser alignment systems include inclinometers that aid in the alignment process. Inclinometers, however, don’t work on vertically oriented machines. These include vertical “C” faced machines as well as vertical machines with feet. This meant that vertical machines required a 180-degree swing for accurate measurements and sensors were positioned the old-fashioned way by aligning […]

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The 5 Most Useful Shaft Alignment Apps–Download Today!

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By on September 12, 2018

  Technology has made so many of our jobs easier, and this certainly includes the maintenance industry. One aspect of technology you should be taking advantage of if you are a maintenance foreman, team member, or technician is the many smartphone apps that exist to make your job easier and your plant more efficient. Below […]

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What is the Difference between Unbalance and Runout?

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By on September 5, 2018

Unbalance and runout are two terms that we hear frequently in the predictive maintenance community. Both unbalance and runout can be serious issues and need to be addressed to prevent inefficient functioning and damage to machines. Unbalance occurs due to corrosion, erosion of the fan wheel, or if a correction weight is removed. Runout occurs […]

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3 Common Reasons for Shaft Alignment Frustrations

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By on September 4, 2018

Achieving a perfect alignment can seem daunting at times, but it doesn’t have to be if you have the right tools and if you know to look out for three common reasons for shaft alignment frustrations. Once you know these three factors, you can take the necessary steps to avoid them and/or correct them. The […]

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Setting Tolerances in Fixturlaser Shaft Alignment Tools

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By on July 30, 2018

Fixturlaser Shaft Alignment Tools come pre-programmed with generally accepted industry tolerances for electric motor driven machinery.  These tolerances are based on the motor RPM and will give you an “endpoint” in the alignment process (based on the measured offset and angular misalignment at the center point of the coupling in both the vertical and horizontal […]

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Pipe Strain/Stress

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By on July 18, 2018

Not only do we write blog articles at VibrAlign, we also read them. Nearly every training session I conduct, pipe strain as a source of alignment frustration, comes up. I recently came across an excellent blog written by Ricky Smith CRL CMRP CMRT that I would like to share. There is some really good information […]

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Installation Errors Part 3 – Proper Torqueing of Hold Down Bolts

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By on June 27, 2018

One of the most under-rated procedures of the precision shaft alignment process is the TIGHTENING SEQUENCE of the hold down bolts on the movable machine. Also, tightening the bolts to proper torque specifications is many times considered unnecessary and is just not typically done. Tightening sequence and proper bolt torque are critical to the performance […]

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Just Get It Running, We’ll Fix It Later!

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By on June 13, 2018

  Sound familiar? I can’t tell you how many times I personally have heard this over the years. I am sure many of you have as well. The issue is, scheduled downtime seems to be put on the back burner so to speak, to meet production goals. And as it has become all too familiar, […]

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Converting Dial Indicator Cold Alignment Targets with the Fixturlaser NXA

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By on June 7, 2018

Even though laser shaft alignment systems have been in use for over 3 decades some industries have alignment tolerances and cold alignment targets in dial indicator terms or language. Take for instance the gas compression and processing industry. Many OEM’s, packagers, end users, and service companies use laser alignment systems, however their cold alignment targets […]

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