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Bearing Common malfunction summary

Date锛2013-09-12 9:52:35

In the bearings during operation , often some of the common reasons for failure Summary:

    Excessive lubricant leaks , discoloration
    Reason: too much lubricant , foreign invasion , wear powder produce foreign body responses: appropriate use of lubricants, lubricant selection change research , research bearing replacement, cleaning shell.
    Vibration ( shaft runout )
    Reason 1 : Peel , countermeasures : Replace the bearings.
    Reason 2: foreign invasion , countermeasures : replacement of bearings , cleaning the parts , to improve the sealing devices.
    Reason 3 : Install the poor , countermeasures : Modify shaft housing retaining shoulder at right angles to the side of the liner straight angle.
    Reason 4: ( after carburizing steel ) surface deformation , countermeasures : Note bearing replacement operation.
    Abnormal temperature rise
    Reason 1 : Abnormal load Solution: Modify coordination of the bearing clearance , preload adjust , modify shell shoulder block position .
    Reason 2: Lack of lubricant or unsuitable , countermeasures : Supplementary lubricants, select the appropriate lubricant.
    Reason 3: mating surface creep , seal friction and excessive measures: replacement of bearings , research cooperation, to modify the shaft and housing , change the seal forms .
    Reason 4 : Install poor measures : to improve the machining accuracy of shaft and housing , mounting accuracy , the installation method .
    Reason 5: too much lubricant , strategies : reducing lubricant , used in moderation , choose the hard grease.

    Noise Rules
    Reason 1: Peel raceway , countermeasures : Replace the bearings.
    Reason 2: ( after carburizing steel ) surface deformation responses: replacement of bearings , pay attention to its use.
    Reason 3 : As the rolling surface indentation caused by foreign objects , corrosion or injuries, measures: replacement of bearings , cleaning related parts , to improve the sealing device, the use of clean lubricant.

    Irregular noise
    Reason 1 : Spherical injury , peel , countermeasures : Replace the bearings.
    Reason 2: foreign invasion , countermeasures : study the replacement of bearings , cleaning related parts , to improve the sealing device , use a clean lubricant.
    Cause 3: The clearance is too large , countermeasures : Research with and bearing clearance , modify pre- load.
    Large metal noise
    Reason 1: rotating parts in contact , countermeasures : Modify the labyrinth seal contact portion .
    Reason 2: Lack of lubricant or unsuitable , countermeasures : Supplementary lubricants, select the appropriate lubricant.
    Reason 3 : Install the poor responses: shaft , housing machining accuracy , improve installation accuracy , installation method.
    Reason 4 : Abnormal load responses: correction with research bearing clearance , adjust the load , fix the housing shoulder block position .

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