SERVICE

SERVICE

bearings fretting



Damage mode Causes Solutions
● denting on the raceway or rolling surfaces due to the metal powder, foreign particles
● roller spaced indents (true Brinelling) caused by incorrect handling or shock load
● foreign particles such as metal powder
● impact load during assembly or transportation
● excessive load
● clean shaft and housing
● improve seal
● filter the lubrication oil
● improve assembly

bearings fretting

● inner ring of double row tapered roller bearing
● brinelling lines on the raceway
● caused by foreign particles

bearings fretting

● inner ring of tapered roller bearing
● numerous big or small  brinelling lines on the whole raceway
● caused by foreign particles

bearings fretting

● roller of tapered roller bearing
● numerous big or small brinelling lines on the whole roller
● caused by foreign particles

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