What is the difference between looseness and unbalance? They have very similar spectrums with different influencers. One can even impact the other in some situations. That similarity can impact your ability to balance a machine expeditiously in the field. For clarity of this discussion we will limit it to Type A and B mechanical…
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This is as much a title for a blog as it is a question. One our Technical Trainers once stated that to align rotating machinery, they must first be alignable. What is meant in part by this is that when we have a collinear tolerance of 0.5mil /1” angularity and 2.0 mils offset, the machines…
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A common vibration signature on equipment is looseness. There are two types of looseness: structural/fastener, fit between rotating components. For this discussion, we will focus on structural and fastener looseness. Typically, it is highly directional, occurs at 1xRPM, and will look similar to this spectrum. In this case, the vibration was confined to the vertical…
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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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