Thank's for the answer. Sorry for my english. I was talking about the total frequency band for the measure, becouse I'm specify the A/D conversor, the stage after the acelerometer signal conditioning. In my case, the bearing used is SKF 2309 (number of balls: 12, ball diameters: 15,87 mm...
I'm working with monitoring of bearing vibrations and I need to specify a A/D conversor for aquisition data. I need to know the total amplitute of the frequency harmonics for a fundamental frequency about 1 kHz (like ball bearings).
Thanks
Marcello