## Learn to Hold Down Your Equipment!

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 got to this rooftop penthouse, I noticed a few things: The fan wheel, housing, and shaft were coated in a fairly thick coat of rust…

## The Basics of Fans – Know Your Machines

Fans are a very common component in industry, they are used to move air from one place to another.  Fans are used in dust collection, supplying air to boilers, provide ventilation to factories, are used in the manufacturing process and more. Even your HVAC system at home has a fan/blower in it to move the…

## Balancing How To #6 – Balancing Tolerances

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 How To #5 – How A Correction Weight and Location is Calculated

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 How To #3-Where and How to Place and Affix a Trial Weight

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 How To #2 – Selecting a Proper Trial Weight

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),…

## A Vector Approach to Single Plane Balancing

Unbalance (Imbalance) is often defined as the unequal distribution of the weight of a rotor about its rotating centerline. A rotor can be balanced either in-place or in a balancing machine assuming unbalance is the issue and weight can be added or removed.  Modern balancing instruments will do the math for you. I originally learned…

## Balancing How To #1 – Setting Up for Balancing

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 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…

## SMC Touch Tip-Using the SMC When Unbalance is Diagnosed

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,…