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  • Users: Hoosierken
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  1. Hoosierken

    High Non-Synchronous vibration with harmonics on Vertcal motor

    We are running a 1500HP vertical motor with an upper guide bearing and a lower ball bearing. Running uncoupled we see the dominant vibration at .55 of running speed (1800) and also harmonics of the .55 peak. Even sidebands at .55 x RPM surround the running speed peak. 1X RPM vibration appears...

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