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      Your current location: Home > Technical center > Q&A > Technical Matters
      Technical Matters

      Case of Damage-Spalling

      2013-08-19
      ?
      Damage mode? Causes Solutions
      ● fish scale flaking on the raceways or rollers due to fatigue during bearing operation ● overload, improper installation, load moment
      ●?intrusion of foreign particles, water entering
      ●?poor lubrication, inappropriate lubricant
      ●?inappropriate bearing clearance
      ●?poor precision of housing, uneven rigidity of housing, shaft has large axial deflection?
      ●?rusting, etching pit, scratching and brinelling?
      ●?brinelling propagation
      ● check the load on the selected bearing?
      ● improve installation method
      ● improve seal device, antirust while machine halt
      ●?use lubricant with adequate viscosity, improve lubrication method
      ● check the shaft and housing precision
      ● check clearance


      ● inner ring of radial ball bearing?
      ● spalling caused at the slope with the roller path
      ● caused by misalignment during installation

      ● ball surface spalling?
      ● caused by impact load while stalling

      ● spherical roller bearing inner ring
      ● spalling appears only at roller path surface of one row?
      ● damage due to poor lubrication
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