NBR O-rings 90 Shore A

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 105x7 NBR - 90 Shore A - Black - ses-28554 O-ring Black105 mm  x 7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 176x2.7 NBR - 90 Shore A - Black - ses-41209 O-ring Black176 mm  x 2.7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 88.9x6.35 NBR - 90 Shore A - Black - ses-155669 O-ring Black88.10 mm  x 6.35 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 180x5.8 NBR - 90 Shore A - Black - ses-236507 O-ring Black181 mm  x 5.8 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 25x5.5 NBR - 90 Shore A - Black - ses-98782 O-ring Black25 mm  x 5.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 39.4x3.1 NBR - 90 Shore A - Black - ses-39587 O-ring Black39.5 mm  x 3.1 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black76.9 mm  x 1.2 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 13.5x1.5 NBR - 90 Shore A - Black - ses-38822 O-ring Black13.5 mm  x 1.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 214x7 NBR - 90 Shore A - Black - ses-413765 O-ring Black214 mm  x 7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 96.11x2.62 NBR - 90 Shore A - Black - ses-40496 O-ring Black96.12 mm  x 2.62 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 97.79x3.81 NBR - 90 Shore A - Black - ses-323094 O-ring Black97.80 mm  x 3.81 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 84.99x3.51 NBR - 90 Shore A - Black - ses-518608 O-ring Black84.100 mm  x 3.51 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 64.5x2.7 NBR - 90 Shore A - Black - ses-40046 O-ring Black64.6 mm  x 2.7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 66.7x5.5 NBR - 90 Shore A - Black - ses-155608 O-ring Black66.8 mm  x 5.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 68.5x3 NBR - 90 Shore A - Black - ses-324360 O-ring Black68.6 mm  x 3 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 86.8x6.98 NBR - 90 Shore A - Black - ses-323010 O-ring Black86.9 mm  x 6.98 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 795x4.5 NBR - 90 Shore A - Black - ses-485362 O-ring Black796 mm  x 4.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 815x5.7 NBR - 90 Shore A - Black - ses-261368 O-ring Black816 mm  x 5.7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black829 mm  x 9 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 66.5x2 NBR - 90 Shore A - Black - ses-322814 O-ring Black66.6 mm  x 2 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 839x6.35 NBR - 90 Shore A - Black - ses-261620 O-ring Black840 mm  x 6.35 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 57.5x2.1 NBR - 90 Shore A - Black - ses-257663 O-ring Black57.6 mm  x 2.1 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 87x2.5 NBR - 90 Shore A - Black - ses-40367 O-ring Black87 mm  x 2.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 71x2.4 NBR - 90 Shore A - Black - ses-322864 O-ring Black71 mm  x 2.4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 886x5.33 NBR - 90 Shore A - Black - ses-262124 O-ring Black887 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 897x3.5 NBR - 90 Shore A - Black - ses-156422 O-ring Black898 mm  x 3.5 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 907x9 NBR - 90 Shore A - Black - ses-262352 O-ring Black908 mm  x 9 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 523.47x3.53 NBR - 90 Shore A - Black - ses-485058 O-ring Black523.48 mm  x 3.53 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 917x5.33 NBR - 90 Shore A - Black - ses-156445 O-ring Black918 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 431x10 NBR - 90 Shore A - Black - ses-257943 O-ring Black431 mm  x 10 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 443x10 NBR - 90 Shore A - Black - ses-324830 O-ring Black443 mm  x 10 mm NBR-Buna90 Shore A Neeicon-bekijk icon
Placeholder O-ring Black451 mm  x 11 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 334x8.4 NBR - 90 Shore A - Black - ses-99644 O-ring Black334 mm  x 8.4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 19.6x4 NBR - 90 Shore A - Black - ses-39049 O-ring Black19.7 mm  x 4 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 368x10 NBR - 90 Shore A - Black - ses-484790 O-ring Black368 mm  x 10 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 15.49x7.49 NBR - 90 Shore A - Black - ses-98630 O-ring Black15.50 mm  x 7.49 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 603x7 NBR - 90 Shore A - Black - ses-259093 O-ring Black604 mm  x 7 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 21.1x1.2 NBR - 90 Shore A - Black - ses-321912 O-ring Black21.2 mm  x 1.2 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 743x6.35 NBR - 90 Shore A - Black - ses-260493 O-ring Black744 mm  x 6.35 mm NBR-Buna90 Shore A Neeicon-bekijk icon
O-Ring 681x5.33 NBR - 90 Shore A - Black - ses-259849 O-ring Black682 mm  x 5.33 mm NBR-Buna90 Shore A Neeicon-bekijk icon

The origin of NBR

Nitrile-butadiene rubber (NBR) was developed by the chemical company ‘I.G. Farbenindusty’ from Germany between WWI and WWII. At first the material was called Buna-N® and was later renamed to Perbunan®. The material first came to market in the 30s and is nowadays the most used elastomer for standard seals like O-rings and other seals.

What is NBR?

NBR is an elastomer, which is a synthetic polymer obtained by the copolymerization of acrylonitrile and 1,3-butadiene. The characteristics are partly determined by the amount of acrylonitrile in the material and this varies from 18 to 50 percent. As the acrylonitrile increases, resistance to petroleum base oils and hydrocarbon fuels increases, but low temperature flexibility decreases and the rubber can become brittle.

What is NBR used for?

  • Seals
  • O-rings
  • Gaskets
  • Pipe and Cable Covers

The advantages of NBR

  • Resistant against oils, fats, hydrocarbons, diluted acids
  • Has good mechanical qualities and is wear-resistant
  • Good resistance to heat
  • It is powerful and elastic
  • It has a working temperature range of -35°C tot + 120°C (-30 ° F tot + 250 ° F)

The downside of NBR

  • It has limited resistance to weather and ozone conditions
  • Not well resistant to aromatic compounds, halogenated hydrocarbons, ketone brake fluids and strong acids
  • Must be kept out of direct sunlight
  • The working temperature range is limited in comparison to other materials

On this page we offer our range of 90 Shore A O-Rings. Search for your specific O ring by using the filters on the left of the page or take your time and browse our wide range of our products. When you can not find the product you are looking for in our 90 Shore A made from NBR, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.