Bearing vibration reasons

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The main reason to cause rolling bearing vibration nature of the vibration and the vibration caused by the the bearing manufacturing error, and the shaft and housing bo re line bit precision.

1. Essence of vibration of the bearing is the no shape error bearings, under a load when the resilient contact between the ferrule and the rolling bodies and production

Raw unique vibration comprises:

(1), rolling bodies through the vibrating ball bearing companies

(2), the natural vibration of the ferrule. Comprising:

a, outer ring of the moment of inertia of the Department of angular natural vibration

b, outer ring Quality Department inherent axial vibration

c, bearing rings bending inherent vibration.

(3), the vibrations caused by the bearing spring characteristics: the axial vibration, radial vibration, bearing the resonant.FAG bearing

2 the vibrations caused by the bearing manufacturing error.

Rolling b earing inner and outer ring raceway and the rolling surface of the circumferential direction Chengdu different the wavy processing traces - waviness, which is caused
Bearing vibration induced noise and Imperative the axis of the rotation of the eccentric motion occurs extremely important factor. Depression formed by machining marks waviness primer

Also occur, in addition to the raceway wave vibration from the bearing radial clearance, or out ball bearings bearing axial load is applied

Auctions the degree of the wave number of bearings, to impose radial load also occurs.grinding spindle

3. Radial shaft and housing bore shape and position accuracy. Poor shape and position accuracy of the shaft and the housing bore, bearing mounting ferrule flexural deformation, so due to low-frequency vibration than bearing rolling surface shares yo waviness vibration. well as the improper operation of the installation process and so is the reason of bearing vibration.