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When High 1× Vibration Isn't an Imbalance One of the easiest mistakes to make in vibration analysis is assuming that a dominant 1× running speed on a fan automatically points to an impeller imbalance. During a routine inspection of a supply fan, vibration analysis identified elevated vibration levels dominated by the fan running speed. As the fan is pulley driven with a step-up in speed, it was immediately clear from the motor vibration that this was no ordinary or straightfo

“When Trending Isn’t Enough” 🗓️ The Situation A recent visit to a large industrial processing site started with a straightforward request from the Plant Manager: “Our online system shows overall vibration values increasing on our mill gearbox. Can you tell us why?” Their permanently installed monitoring system is excellent for trending. It shows when vibration amplitudes are rising. But it doesn’t show why . And as it turns out: The online system wasn’t wrong. It just doesn’

The Conveyor Case & the Damaged Tooth 🗓️ The Situation Today’s job was a routine vibration survey on a conveyor drive system,...

Balancing the Big Boy… with a Twist 🗓️ The Situation Today’s callout was for a good old-fashioned dynamic balancing job, no...