49棋牌app

SERVICE

SERVICE

bearing Scratch



Damage mode Causes Solutions

● by scratch, it means surface damage

49棋牌app caused by collection of tiny burnsresulting

from skidding and oil film hot breaking     on the   raceway or rolling path

● produce rough surface with hot sticking
● high-speed light load
● acceleration and deceleration
● impropriate lubricant
● water ingress
● improve preload
● improve bearing clearance
● use lubricant with good oil film property
● improve lubricating method
● improve seal

bearing Scratch

● inner ring of cylinder roller bearing

● scratch at the circumferential

direction of the roller path

49棋牌app ● cause: excessive lubricant leads

to roller skidding

bearing Scratch

● spherical roller bearing inner ring
● scratch at the circumferential direction of roller path
● caused by poor lubrication
bearing Scratch
● spherical roller bearing spherical roller
● scratch at the center of rolling surface
● caused by poor lubrication

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yjx@kmr.cn.com

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