HVAC air handlers, especially those used in office environments, often feature small horsepower motors (typically less than 10 HP). They may be belt-driven or direct drive fan wall units, and…
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Editor’s Note: This Blog is authored by Brian Rimmer (Freudenberg) & Stan Riddle (Acoem USA) Acoem USA recently provided dynamic balancing training for Freudenberg in Durham, NC, using an Acoem…
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During a recent balancing class, I was requested to help the customer balance a couple of fans. Typically, our services team does this, but I agreed to help. When we…
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According to the International Organization for Standardization (ISO), unbalance is “that condition which exists in a rotor when the vibratory force or motion is imparted to bearings as a result…
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Balancing rotating machinery is mostly math, with a bit of common sense and experience thrown in. The math is constant, so here are some tips to help with the common…
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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…
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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…
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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.…
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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…
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The recent blog on troubleshooting balancing ( https://acoem.us/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…
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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…
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As you may have noticed if you follow VibrAlign’s social media accounts, we have been going through “Maintenance Tip Mondays” for the past couple months. This is a fun opportunity…
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I read an interesting article in the June/July 17 issue of Uptime Magazine. It was titled “The Reliability Impact Within the P-F Curve” by Randy Riddell. Randy is the Reliability…
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Electric motors are almost always well-balanced when they leave the motor manufacturer. But occasionally, motor unbalance problems are picked up with vibration monitoring tools, such as the OneProd Hawk. Here…
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Past maintenance & production issues found in the industrial or manufacturing environment are still prevalent even in today’s equipment reliability focus. The major contributors to equipment failure remain the same,…
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