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FAG bearings micro abrasion is due to oxidation corrosion occurs between two contacts with small amplitude caused by the reciprocating sliding wear, often occurs in the oscillating swing or under the influence of vibrations between the raceways and rolling elements can also occur between mating surfaces. When the car or as cargo transported on the train, rail joint impact often makes vehicles or engines in the FAG bearing this kind of injury. Reason: at rest has long been under pulsating load corrosion and oxidation, this wear, the progressive form, can also occur even if the load is small, oxidation rates are also important factors in causing such damage, vibration characteristics of metal molecules escape the rapid formation of oxides on the surface of the State, which in turn exacerbate that wear.
FAG bearing micro-dynamic abrasion performance of features: in damaged of surface Shang formed dark color no gloss of raster distribution small pit, its interval approximate is equal to scroll body of spacing or its whole multiples, serious Shi will rendering like washboard like bump phase mill pit, or deep embedded rings retaining edge within, often accompanied by Brown Red fine grain rust chip, but small pit sometimes may is bright of. This small pit and said leave pressure trace, minor of abrasion especially Dang oxidation role does not clear Shi, and due to large load pressure out of plastic pressure pit is difficult to difference, but micro-dynamic abrasion of vibration will squeeze opened lubricant, makes contact surface occurred wear, and wiped to surface Shang original of mill processing traces, and really pressure trace is retained original of traces, in most situation Xia still can be difference.
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