%0 Journal Article %T VIBRATORY ACTIVITY INVESTIGATION OF GRINDING MACHINE ELECTRIC SPINDLES %A Gasparov, E.S. %A Gasparova, L.B. %A Markosyan, G.A. %K bearings, vibratory acceleration, preload, spectral properties, frequency, rotor %J Bulletin of Bryansk state technical university %D 2021 %N 2021 %P 6 %I Bryansk State Technical University