Study on the vibration characteristics of low-noise deep groove ball bearings

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Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (10) : 12-19.

DENG Si-er1，SUN Chao-yang2，GU Jin-fang3，CUI Yong-cun1

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Abstract

Based on the dynamic analysis theory of rolling bearing , a mathematical model of deep groove ball bearing considering the effects of bearing working surfaces waviness is established. Taking a type of low-noise deep groove ball bearing as example, the bearing vibration characteristics are analyzed theoretically at various bearing structural parameters, working conditions and working surface waviness. The results show that: the bearing basic vibration value can be reduced by selecting reasonable primary parameters, for instance, bearing radial clearance, inner and outer raceway groove curvature radius coefficients, pocket clearance of cage, and so on; the bearing width larger, the bearing vibration value smaller; the bearing vibration value will decrease effectively when the bearing applied axial loads at a certain range; there is a reasonable speed range which can limit the vibration value effectively; the severe vibration occurs when the inner and outer raceway surface waviness orders is integral times to the numbers of balls; the waviness orders exciting frequency of outer raceway equal and the inner raceway is ; the even waviness orders of ball working surface make an exciting effect on the vibration value; the vibration produced by rotating ring is more severe than fixed ring; the vibration value will increase greatly when the bearing radial loads or rotating speed increased instantly.

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deep groove ball bearing / low-noise / surface waviness / vibration

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DENG Si-er1，SUN Chao-yang2，GU Jin-fang3，CUI Yong-cun1. Study on the vibration characteristics of low-noise deep groove ball bearings[J]. Journal of Vibration and Shock, 2015, 34(10): 12-19

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