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Backup Rings

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  • Seal
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  • Backup Ring
    Availability
    Brand
    Cat
    • Inside Diameter (mm)
      40
    • Inside Diameter (in)
      1.57
    • Cross Section Height (in)
      0.1
    • Notes
      Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Cross Section Height (mm)
      2.5
    • Cross Section Width (in)
      0.05
    • Inside Diameter (mm)
      40
    • Inside Diameter (in)
      1.57
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  • Seal
    Availability
    Brand
    Cat
    • Inside Diameter (mm)
      19.6
    • Inside Diameter (in)
      0.77
    • Material
      NBR - Nitrile
    • Cross Section Width (mm)
      1.5
    • Notes
      Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Cross Section Height (mm)
      2.3
    • Inside Diameter (mm)
      19.6
    • Inside Diameter (in)
      0.77
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  • Backup Ring
    Availability
    Brand
    Cat
    • Inside Diameter (mm)
      48.1
    • Inside Diameter (in)
      1.89
    • Cross Section Height (in)
      0.09
    • Material Description
      NBR is a versatile material with good abrasion and cut resistance. It works well in Air, Engine Oil, Diesel Fuel, Coolant/Urea, Hydraulic Oil and Automatic Transmission Fluid applications. Do not use with Biodiesel.
    • Notes
      Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Cross Section Height (mm)
      2.2
    • Inside Diameter (mm)
      48.1
    • Inside Diameter (in)
      1.89
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  • Backup Ring
    Availability
    Brand
    Cat
    • Inside Diameter (mm)
      11
    • Inside Diameter (in)
      0.43
    • Material
      PTFE - Polytetrafluoroethylene
    • Material Description
      PTFE provides superior performance in Air, Engine Oil, Diesel Fuel and Coolant applications, but is sensitive to installation damage and debris. It works well at very high temperatures.
    • Cross Section Height (in)
      0.06
    • Notes
      Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Inside Diameter (mm)
      11
    • Inside Diameter (in)
      0.43
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  • Backup Ring
    Availability
    Brand
    Cat
    • Inside Diameter (mm)
      65
    • Inside Diameter (in)
      2.56
    • Material Description
      Nylon Plastic provides good resistance to fuels, oils and lubricants. Many different formulations are used, some of which can support high mechanical loads, and perform well at elevated temperatures.
    • Cross Section Height (in)
      0.2
    • Notes
      Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Cross Section Width (mm)
      1.9
    • Inside Diameter (mm)
      65
    • Inside Diameter (in)
      2.56
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  • Backup Ring
    Availability
    Brand
    Cat
    • Inside Diameter (mm)
      172.1
    • Inside Diameter (in)
      6.77
    • Material
      Aliphatic Polyketone Plastic
    • Notes
      Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Cross Section Height (in)
      0.12
    • Material Description
      Aliphatic Polyketone Plastic provides good resistance to extrusion and wear in petroleum and water-based fluids. It also works well in designs requiring tight tolerances.
    • Inside Diameter (mm)
      172.1
    • Inside Diameter (in)
      6.77
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