Posts tagged with: “thermal growth”

FIXTURLASER NXA PRO SELECTED AS THE ALIGNMENT TOOL FOR WORLD SKILLS ABU DHABI 2017

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By on September 20, 2017

The Fixturlaser NXA Pro has been selected as the laser shaft alignment tool to be used in the Industrial Mechanic Millwright competition at this year’s WorldSkills event, being held in Abu Dhabi on October 15-18. WorldSkills Abu Dhabi 2017, the world championship of skills, will have participants from 77 countries who will be competing in 51 […]

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Determining Cold Alignment Targets from OEM Dial Indicator Specifications

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By on November 23, 2016

A client was aligning a motor-compressor set and wanted to use the OEM specifications for thermal growth (OL2R) compensation. The manual gave the target values as rim and face dial indicator numbers for either the motor hub or compressor hub. In this case the motor hub specifications were used. He was using the Fixturlaser NXA […]

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Environmental Impact on Precision Shaft Alignment

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By on July 6, 2016

We work with clients in many types of harsh climates, from cold with rain, sleet, snow & ice to hot humid and hot & dry and everything in between. Whatever the climate, the need for equipment maintenance intensifies with the severity of the climate.  Harsh climate conditions will create situations where precision shaft alignment of […]

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MACHINERY VIBRATION PROBLEMS-CAUSES AND SOLUTIONS, PART 1

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By on February 25, 2016

Machines vibrate for lots of different reasons-some good, others not so good. Over the next few months, we are going to write about some of the most common machinery vibration causes, and possible solutions. COUPLING MISALIGNMENT One of the most common problems in coupled rotating equipment is misalignment. Simply stated, misalignment is when the driving […]

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Common Precision Shaft Alignment Questions Asked In Our Training Classes

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By on December 10, 2015

While training mechanics all around the US, I have noticed that many of the questions asked in class are the same regardless of the industry. Fixturlaser tools are very intuitive and easy to use, so this puts the mystery on the alignment process. So here are some answers to some common alignment process related questions […]

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Using the AlignHot App (Hot Check) to Determine Thermal Growth Targets

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By on July 23, 2015

A previous blog of mine discussed the benefit of taking a set of hot alignment readings to verify if the offset targets used for a cold alignment, to compensate for thermal growth (dynamic movement), were correct.  http://thealignmentblog.com/blog/2015/04/15/benefit-hot-alignment-check/ So what if the actual hot alignment readings you get show a large difference from the anticipated hot […]

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Useful Field Apps for Today’s Maintenance Personnel

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By on June 17, 2015

The world of machinery maintenance continues to grow with reliability and technology at the forefront of the majority of today’s maintenance programs. The mechanics toolbox must change to support these changes. Computer based manuals and programs were the first step into “the future” of machine maintenance. Now smart phones and tablets have more memory available […]

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Understanding Alignment Target Data from the VibrAlign ThermAlign App

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By on May 13, 2015

Dynamic Movement, often thought of as thermal growth, is a hot topic among alignment professionals (I’ll be here all week!). Plant Services Magazine in conjunction with VibrAlign recently hosted a webinar on this subject (details below). One of the more popular ways to compensate for thermal growth is through the use of a thermal growth […]

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Dowelling Machinery

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By on April 30, 2015

A dowel pin, in its simplest form, is a hardened steel shaft, usually very short, and can be straight or tapered. It is often used in machinery for: Precise locating of machinery components, such as the top half of a pump, gearbox components, line shaft bearings, etc. Dowels are usually located in diagonal corners of […]

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The Benefit of a “Hot” Alignment Check

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By on April 15, 2015

There have been numerous posts on TheAlignmentBlog.com dealing with Thermal Growth and Dynamic Movement of rotating machinery. http://thealignmentblog.com/blog/category/alignment-troubleshooting/dynamic-movement/. Thermal Growth continues to be a subject that is discussed and taught in our training classes, though on a daily basis is not always correctly compensated for in industry. Many maintenance personnel performing precision shaft alignments use […]

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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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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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“Where can I get alignment specifications?”

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By on December 3, 2013

This is a question that comes up surprisingly often in our training classes. The question is usually regarding Thermal Growth offsets (dynamic movement) and shaft alignment tolerances. There are several ways to obtain the data in question. The easiest and most readily available would be the equipment manufacturer. Most companies will supply specific offset and […]

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Shaft Alignment Thermal Growth Targets–When You Don’t Know

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By on September 23, 2012

In shaft alignment, machines that run hot often have thermal growth targets. Thermal targeting simply means that the shafts may be misaligned while at room temperature, but as they heat up to operating temperature, they will “grow” into alignment. But where does the thermal growth target come from? Many times, the machine manufacturer will specify […]

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Measuring Thermal Growth Targets using the XA Pro w/OL2R

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By on March 15, 2012

Previous blogs have defined thermal growth of rotating equipment and discussed several different methods to calculate the cold (ambient) alignment targets to compensate for thermal growth. The OL2R program (Off Line to Running) of the Fixturlaser XA Pro allows the aligner to easily measure thermal growth (dynamic movement) and determine the correct cold alignment targets for […]

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