In rotating machinery, power is commonly transmitted from a driving machine (such as an electric motor or turbine) to a driven machine (such as a pump, compressor, or gearbox) using…
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When two machines are coupled together—like a motor and a pump—alignment is challenging enough. Add a gearbox in between, and things get much more complex. Multi-element drive systems, known as…
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When rotating equipment runs out of alignment, the consequences are serious, from premature bearing wear and seal failures to costly unplanned downtime. In some cases, shafts are so misaligned (or…
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Laser flatness measurement utilizes a laser to project a precise plane or line of sight, serving as a reference for detecting deviations from a perfectly flat surface. By comparing the…
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From one organization to the next, the design of a reliability program will always reflect unique business needs and functions. Yet every program shares the same core objectives that form…
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I recently assisted a customer with a strange vibration issue on a small, belt-driven air handler. Typically, these types of machines are not considered critical assets, but in this case,…
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Metrology, or the science of measurement, is a critical component of any skilled task, such as sewing, carpentry, metalwork, engineering, and architecture, all of which require tools to measure and…
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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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Vector math is often seen as an overcomplicated and daunting task. You may think that it is useless because your vibration data collector does this math for you and will…
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Like industrial machines, everyday structures also experience thermal expansion due to temperature changes. Bridges, for example, have expansion joints to accommodate the expansion and contraction of materials as they heat…
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Maintenance is a necessary function for any facility in industry today. Many corporations view this as an expensive cost of doing business. However, if done correctly, it can be a…
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What is often called “axial alignment” of couplings is really not shaft alignment at all. Proper shaft alignment consists of offset (parallel) alignment and angular alignment, which is really the…
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A vibration analyst’s day is always unpredictable, but there is a general flow that most of us experience. This blog post shares what a typical day looked like for me…
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Vertically-oriented pumps are used primarily in municipal water, HVAC, and power plant operations, although it is not uncommon to see small vertical pumps in many industrial applications. Many vertical pumps…
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Shaft alignment is a critical process in the maintenance of rotating machinery. It ensures that the centerlines of the shafts are collinear when in operation, which reduces wear and energy…
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If you’re working to maintain machines, Acoem USA wants to help.
We’re committed to providing tools, training, and services that will transform your approach to maintenance and reliability.
