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Vertical fan-vibration

From: rudy@mace-inc.com
Remote Name: 65.11.149.194

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Hello to all, I took reading on the bearings of a fan motor ( 895 rpm, 189Kw ) at speed measured 5.9 mm/s but have also a high amplitude at the DE at 456.9Hz with 38.4 mm/s, with side bands of 30 Hz as well as on the NDE at 426.3h and 35.1 mm/s also with 30Hz side bands, any ideas ?

Last changed: October 16, 2007