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NBR 90, Black

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  1. Hattemerbroek 5376 items
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  1. O‑ring NBR 90
    Dimensions: 228 x 4
    Part number: 16436
    Delivery time: 1 week
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  2. O‑ring NBR 90
    Dimensions: 331 x 3.5
    Part number: 56186
    In Stock
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  3. O‑ring NBR 90
    Dimensions: 6.1 x 1.6
    Part number: 15661
    In Stock
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  4. O‑ring NBR 90
    Dimensions: 71.2 x 3
    Part number: 539750
    In Stock
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  5. O‑ring NBR 90
    Dimensions: 25.12 x 2
    Part number: 235677
    In Stock
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  6. O‑ring NBR 90 Type: OR-P320
    Dimensions: 319.5 x 8.4
    Part number: 235199
    In Stock
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NBR 90 Shore

Among standard seals such as O-rings and radial shaft seals, NBR is the most widely used material. The reasons for this are good mechanical properties, high abrasion resistance, low gas permeability and the high resistance to mineral oil based oils and greases. NBR is a copolymer of butadiene and acrylonitrile. Depending on the application, the content of acrylonitrile can vary between 18% and 50%. Low ACN content improves cold fl exibility at the expense of the resistance to oil and fuel. High ACN content improves the resistance to oil and fuel while reducing the cold flexibility and increasing compression set. To obtain balanced properties, our standard NBR materials have an average ACN content around 30%.


NBR has good resistance to:

  • mineral oil-based oils and greases
  • aliphatic hydrocarbons
  • vegetable and animal oils and fats
  • hydraulic oils H, H-L, H-LP
  • hydraulic fluids HFA, HFB, HFC
  • silicone oils and silicone greases
  • water (max. 80°C)


NBR is not resistant to:

  • fuels with high aromatic content
  • aromatic hydrocarbons
  • chlorinated hydrocarbons
  • non-polar solvents
  • hydraulic fluid HFD
  • glycol-based brake fluids
  • ozone, weathering, ageing


Characteristics:

Shore

Color Min. temp. (Celsius) Max. temp. (Celsius) Short (Celsius)
NBR 90 black -25 +100 +120

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