Bearing Failure: Wear

          Damage Condition

          Wear is surface deterioration due to sliding friction at the surface of the raceway, rolling elements, roller end faces, rib face, cage pockets, etc.

          Possible Causes可能原因 進入碎屑 銹蝕和電蝕逐漸侵害 潤滑不好  滾動體不規(guī)則運行造成的滑動

          • Entry of debris

          • Progression from rust and electrical corrosion

          • Poor lubrication

          • Sliding due to irregular motion of rolling elements

          Countermeasures

          • Improve the sealing mechanism

          • Clean the housing

          • Filter the lubrication oil thoroughly

          • Check the lubricant and lubrication method

          • Prevent misalignment

           

          Wear 1

          Part: Inner ring of a cylindrical roller bearing
          Symptom: Many pits occur due to electrical corrosion and wave-shaped Wear on raceway surface
          Cause: Electrical corrosion

           

          Wear 2

          Part: Outer ring of a spherical roller bearing
          Symptom: Wear with a wavy or concave-convex texture on loaded side of raceway surface
          Cause: Entry of debris under repeated vibration while stationary

           

          Wear 3

          Part: Inner ring of a double-row tapered roller bearing
          Symptom: Fretting Wear of raceway and stepped Wear on the rib face
          Cause: Fretting progression due to excessive load while stationary

           

          Wear 4

          Part: Tapered rollers of damage “Wear 3”
          Symptom: Stepped Wear on the roller head end faces
          Cause: Fretting progression due to excessive load while stationary

           


          Selection and Design

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          Complete range

          Various kinds of bearings, including large, super-large turntable bearings, precision cross-roller bearings, thin-walled bearings, precision angular contact ball bearings, ceramic ball bearings, steel wire raceway bearings, joint bearings, etc., have complete accuracy grades.

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