Analysis of Wear Failure of NTN Bearings

Source: China Bearing Network Time: 2014-03-10

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Abrasive wear of NTN bearings refers to the wear of external solid particles or hard foreign objects or metal surface wear debris between the outer surface of the NTN bearing bearing operation and the relative movement of the touch surface; often forming a furrow-like shape on the bearing operation Scuffing. Hard particles or foreign matter can come from inside the host or other adjacent parts from the host system are fed into the NTN bearing by smooth media. Adhesive wear refers to uneven force on the conflict surface due to conflicting microscopic bumps or foreign objects. In the case of severe deterioration of smooth conditions; heat generated due to partial conflict; easy formation of conflict surface deformation and conflict micro-welding appearance; surface metal can be partially melted when severe; force on the touch surface tears part of the conflict solder joint from the substrate Cracking and increasing plastic deformation. This adhesive tearing adhesion process constitutes adhesive wear; in general; the slight adhesive wear of NTN bearings is called scratch; severe adhesive wear is called bite.

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