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            Description

            • Abrasive particles lead to wear of the rolling elements, raceways and cage
            • Worn surfaces exhibit a dull, frosty gray appearance
            • Wear steps can often be observed on the roller and flange thrust surfaces and near the edges of rolling paths

            Causes

            External contamination

            Circumferential fracture of a cylindrical outer race.

            External contamination led to abrasive wear of these cone – roller assemblies. The rollers exhibit a dull, frosty gray appearance.

            Abrasive wear of tapered bearing rollers resulting from contamination

            Abrasive wear of tapered bearing rollers resulting from contamination.

            Abrasive wear on a tapered bearing cone thrust flange resulting from external contamination

            Abrasive wear on a tapered bearing cone thrust flange resulting from external contamination.

            A groove worn into a cylindrical roller by a hard particle debris imbedded in the cage

            A groove worn into a cylindrical roller by a hard particle debris imbedded in the cage.

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