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Engine Bearing Failure Models. Failure Analysis – Foreign Particles On Bearing Back

2026-06-24 06:06

[ Appearance ]

A localized area of wear can be seen on the bearing surface. Also, evidence of foreign particle(s) may be visible on the bearing back or bearing housing directly behind the area of surface wear.


[ Possible causes ]

• Dirt, dust abrasives and/or metallic particles either present in the engine at the time of assembly or created by a burr removal operation can become lodged between the bearing back and bearing housing during engine operation.


Fig 1 Ins用-16比9.jpg


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