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Voice Description
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Characteristic
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Occurrence Reason
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Zha - zha ring
whine
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Sample not changes over turning speed (dust/foreign material)
Sound changes over turning speed (cut)
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·Dust/foreign material
Orbital plane, ball bearings, roller surface roughness
Orbital plane, ball bearings, roller surface scratches
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Yi's ring
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Small bearings
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· Orbital plane, ball bearings, roller surface roughness
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Yi - yi's rings
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Off and on, and there are rules
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· In contact with the sealing ring areas
Contact with the retainer and sealing cover
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Whoops ring
Di di
Roar loud
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By turning speed changes, size are changed.According to the specific speed rotary sound bigger.Sometimes this is approximate alarm or flute.
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· Resonance, cooperate with bad bad (axis shape)
Orbital plane deformation
Orbital plane, ball bearings, roller corrugated (large bearing such as a slight sound, it's normal)
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Crunching sound
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When manual rotation
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·Orbit scratch (rules)
Ball bearings, roller scratch (irregular)
Dust/foreign material, orbital plane deformation (part of the gap is negative)
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rumbling
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Large bearing
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（When high speed continuous tone）
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Small bearing
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·Orbital plane, ball bearings, roller surface scratches
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Blare -
Om -
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Cut off power supply when the moment to stop
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The motor electromagnetic sound
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Cheep! Cheep!
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Irregular change (non rotational speed),
Mainly for small bearings
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· Mixed with dust/foreign material
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Jingle ring
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Tapered roller bearing
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（Rules and high speed continuous tone）
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Large bearings
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small bearings
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· Such as the retainer clear sound is normal
Such as at low temperature grease by discomfort - gentle is good
Because of retainer internal wear, lubrication, run by the lack of bearing load.
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Hey! Hua
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When low speed obviously
When high speed continuous tone
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· Retainer within the impulsive sound, insufficient lubrication.Reduce internal clearance or different tones disappear after preloading.
If is all roller, roller, the impact between the sound.
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Bang bang ring
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The larger impact sound metalLarge low speed of thin wall bearing (TTB), etc.
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· Turn the body tearing sound
Rail wheel deformation
squeaking
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MAO MAO sound
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Mainly changes because of turning speed cylindrical roller bearing, can hear the sound loudly.After added lubricant, will stop at the moment.
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· Lubricating oil too thick
The radial internal clearance is too large
Lubricating oil is insufficient
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qiangqiang sound
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Between the metal occlusal soundSharp sound
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Roller bearing roller and guard bites
Internal clearance too small Lubricating oil is insufficient
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Yi!
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Irregular voice of small bearings
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· Bubble plosive in the lubricating oil
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PaCha PaCha
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Irregular squeaking
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Part of the skid
Install the cheep ring
Keys such as cheep ring |
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In general the sound pressure is too large
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Orbital plane, roller, ball bearing surface rbital plane because of friction, roller, ball bearing deformation
Internal clearance is too large, because of friction
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