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The reasons of the bearing vibration
by：Waxing
2020-11-13
Bearing vibration greatly refers to its numerical more than the specified standards.
The phenomenon and reasons are as follows: 1: larger axial vibration cause analysis: 1)
Poor bearing inner and outer ring coaxial degree of 2)
Because of the small size of the radial bearing chamber or roundness is poorer, the bearing outer ring is squashed deformation 3)
Poor bearing housing and bearing alignment 4)
Two belt wheel shaft to the wrong phenomenon in two: the radial vibration is larger,
Common horizontal direction is larger than the vertical direction)
Cause analysis: 1)
Poor two coupling coaxial degree of 2)
Equipment connected to the bench is not in conformity with the requirements, including: (1) install the screw loose (2) piece bottom floor MATS, compaction (3) installed base frame deformation, common steel plate (
Angle or channel steel, etc. )
The fabric of the welding deformation due to lack of time 3)
Two pulley not parallel 4)
Bearing outer ring and bearing chamber wear 5)
The rotor unbalance is larger 6)
Larger coupling unbalance 7)
Bearing damage, including the individual ball (
Or roller)
Damage and bearing inner ring or outer ring damaged
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