What are the main factors affecting bearing vibration?
Determined by the design parameters of the bearing structure stiffness, flexibility, quality, the vibration system composed of damping in operating conditions will produce and mechanical adaptation.
Vibration caused by manufacturing process deviation, deviation is small, the smaller the vibration. Steel ball surface roundness, roughness, surface roughness is the main factors affecting bearing vibration of what?
Determined by the design parameters of the bearing structure stiffness, flexibility, quality, the vibration system composed of damping in operating conditions will produce and mechanical adaptation.
Vibration caused by manufacturing process deviation, deviation is small, the smaller the vibration. Steel ball surface roundness, roughness, surface roughness is the most influential factors on the vibration of the bearing parts, the shape error and surface of the inner ring and outer ring raceway of roughness, again is bearing cleanliness and lubricant quality etc..
Operation conditions such as installation conditions, speed, load direction axial bearing, as well as values.
Bearing noise
Sound vibration, vibration sound characteristics. The noise characterization of sound intensity level, the sound pressure level, sound power level. Expression of sound intensity level for:
L1=10log (I/I).
L1 is the sound intensity level (dB)
I sound intensity (W/m2)
The I0 reference sound intensity, 10-12W/m2, is the 1000HZ threshold sound intensity.
Sound vibration, vibration sound characteristics. The noise characterization of sound intensity level, the sound pressure level, sound power level. Expression of sound intensity level for:
L1=10log (I/I).
L1 is the sound intensity level (dB)
I sound intensity (W/m2)
The I0 reference sound intensity, 10-12W/m2, is the 1000HZ threshold sound intensity.
The expressions of vibration acceleration level for:
L=20log (a/a).
L, vibration acceleration level (dB)
A, a frequency range of vibration acceleration RMS, (m/S2)
A0 =9.81 × 10-13m/S2
Instrument bearing vibration acceleration test is common, and the test bearing noise equipment is very complicated, in general there is no such equipment enterprise.
Bearing failure occurs easily in use process, how do we go to check the trouble. When the site is not professional technical personnel, so check out the fault of bearing, and out is a very difficult thing!