Vibralign Blog

Precision Shaft Alignment| pipe Strain| Pipe Stress

By Stan Riddle on November 9, 2020

I recently had the pleasure of teaching an alignment class for a Midwest company involved in pipe fabrication and installation.  Their primary concern wasn’t so much in precision shaft alignment, but in being able to measure the effect pipe strain has on alignment.  Before I arrived, they had told me they had fabricated a rig […]

Precision Shaft Alignment| "vertical shaft alignment"| Laser Shaft Alignment

By Stan Riddle on October 7, 2020

A colleague and client of ours called, in a bit of a quandary. “Ever seen anything like this?” he asked.  I had to answer “No, I have not”. This is a C-face motor.  It is typically mounted to a C-face flange, which connects to a vertically oriented pump.  But in this case, the C-face motor […]

"shaft alignment training"| Precision Shaft Alignment| RT-300| Fixturlaser NXA Pro

By Stan Riddle on June 29, 2020

  We get asked a multitude of questions in our training classes, which we appreciate.  But a few questions pop up almost every time.  Here are some of our most common questions and answers. QUESTION:  Sometimes on small machines, I don’t have enough room on the shaft to mount the laser.  Can I mount it […]

By Stan Riddle on March 31, 2020

Like many people worldwide, the ACOEM VibrAlign Training Team is grounded while we wait this virus out.  It is the right thing to do-for ourselves, our families, neighbors, co-workers, and nation. However, that doesn’t mean we can’t help YOU!  If you have questions about alignment, vibration, or reliability of your equipment, WE CAN HELP!  How? […]

Vibration Analysis| rotor unbalance| unbalance

By Stan Riddle on February 13, 2020

By now, if you’ve kept up with the VibrAlign balancing “how-to” blogs, you should see that balancing is mostly just a math problem – counteracting forces.  But we haven’t discussed when the balance job is through. When I started balancing fans many years ago, I stopped balancing when: The fan owner said, “that’s much better”, […]

Balancing| OneProd Falcon| rotor unbalance| unbalance| Fixturlaser Smart Machine Checker

By Stan Riddle on October 9, 2019

In our last “How To” we talked about the trial run – using a trial weight and location, to calculate the amount and location of a correction weight, which should correct the unbalance.  Most modern-day balancing tools do the math for you.  Even though these tools calculate the correction weight and location, it is good […]

Balancing| trial weight

By Stan Riddle on July 26, 2019

In our last Balancing How-To, I stated that an initial trial weight is sometimes a guess.  Sometimes based on experience, and sometimes on common sense.  But if you prefer to be a little more scientific about it, there are ways to calculate a good trial weight. There are a few requirements to calculate a trial […]

Balancing| rotor unbalance| unbalance

By Stan Riddle on April 25, 2019

Once unbalance is determined, the original unbalance run (amplitude and phase) is measured, and a trial weight size is determined, the next step is where to place the trial weight. If you have no balancing record for this rotor, where to place the weight is little more than a guess.  But there are some things […]

Balancing| rotor unbalance| unbalance| SMC| Imbalance| One Prod Falcon

By Stan Riddle on February 22, 2019

In our last Balancing How To, we discussed how to set up and get your original measurements on the rotor to be balanced.  This How To discusses selecting a proper trial weight. A trial weight is used to make a change in the original vibration amount and direction.  Changing either the AMOUNT of vibration (amplitude), […]

unbalance| rotor unbalance| SMC| Balancing| OneProd Falcon

By Stan Riddle on January 30, 2019

The recent blog on troubleshooting balancing ( https://vibralign.com/other-topics/smc-touch-tip-using-the-smc-when-unbalance-is-diagnosed/ ) brought up some additional questions from our readers, so let’s tackle them in order. The first one is setting up to perform a balance job. NECESSARY EQUIPMENT FOR BALANCING If you have gone through the checklist and confirmed unbalance, you will need: A machine to perform […]

Balancing| rotor unbalance| unbalance| Smart Machine Checker

By Stan Riddle on January 7, 2019

The Fixturlaser Smart Machine Checker (SMC) is a great balancing tool (for me personally, it’s the best balancer I’ve ever used).  Unbalance is one of the most common machinery problems on rotating equipment, especially fans. If you get a diagnosis of unbalance, be aware of these tips: Be mindful that a rotating mass, once balanced, […]

unbalance| lubrication| rotor unbalance| Smart Machine Checker| lubrication tool| eletric motor bearing failure

By Stan Riddle on September 13, 2018

We recently published a blog about using the Fixturlaser SMC as a lubrication tool. https://vibralign.com/other-topics/using-the-smart-machine-checker-as-a-lubrication-tool/ Ironically, just a couple of weeks later I received some photos from a new SMC customer.  He got a report from his SMC stating that a chilled water pump was experiencing motor unbalance.  He took the motor apart to inspect […]

lubrication| Bearing Defect detection| Bearing Defect Factor| Greasing bearings| lubrication tool| bearing defects

By Stan Riddle on July 10, 2018

The Fixturlaser Smart Machine Checker (SMC) is a great mechanic’s tool, for evaluating the overall health of rotating machinery.  But did you know it’s also a lubrication tool for greasing bearings?  Let me explain. One of the vibration measurements in the SMC is called Bearing Defect Factor.  The Bearing Defect Factor is a measurement of […]

Precision Shaft Alignment| Fixturlaser NXA Ultimate| Documentation| Fixturlaser NXA Pro

By Stan Riddle on May 23, 2018

When a machine is checked, and found to be out of alignment, the “as found” alignment data can be saved.  Soft foot checks and corrections can also be saved. Continue with the alignment, and when in tolerance save the “as left” alignment. Exit to the Main Menu of the NXA, then press the File Cabinet […]

Laser Alignment tools| Laser Shaft Alignment| "jacking bolts"| "shaft alignment tools"| Alignment tolerances| soft foot| troubleshooting| "shaft alignment"

By Stan Riddle on May 11, 2018

Alan Garbers with Johnson Controls International contacted me regarding an alignment problem, and asked for my advice.  Here is a condensed version of his email. A client rents portable chillers, and related equipment. They built a 125HP portable pump skid with a Bell & Gossett pump on a VFD. I was there to commission the […]