NBR O-rings 50 Shore A

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 40x15 NBR 45 Shore A - Black - ORSV2-40x15-NBR44 O-ring Black40 mm  x 15 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 40x2 NBR 55 Shore A - Black - ORSV2-40x2-NBR54 O-ring Black40 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 23.47x2.62 NBR 55 Shore A - Black - ORSV2-23.47x2.62-NBR54 O-ring Black23.48 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 31.06x6.22 NBR 50 Shore A - Black - ses-327599 O-ring Black31.07 mm  x 6.22 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 24.99x3.53 NBR 55 Shore A - Black - ORSV2-24.99x3.53-NBR54 O-ring Black24.100 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 80x5 NBR 55 Shore A - Black - ORSV2-80x4-NBR54 O-ring Black80 mm  x 5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 22x2 NBR 55 Shore A - Black - ORSV2-22x2-NBR54 O-ring Black22 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 80x2 NBR 55 Shore A - Black - ORSV2-80x2-NBR54 O-ring Black80 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 71x8 NBR 55 Shore A - Black - ORSV2-71x8-NBR54 O-ring Black71 mm  x 8 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 118x10 NBR 55 Shore A - Black - ORSV2-118x10-NBR54 O-ring Black118 mm  x 10 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 100x3 NBR 45 Shore A - Black - ORSV2-100x3-NBR44 O-ring Black100 mm  x 3 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 105x4 NBR 55 Shore A - Black - ORSV2-105x4-NBR54 O-ring Black105 mm  x 4 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 125x9 NBR 55 Shore A - Black - ORSV2-125x9-NBR54 O-ring Black125 mm  x 9 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 48x1 NBR 55 Shore A - Black - ORSV2-48x1-NBR54 O-ring Black48 mm  x 1 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 61.6x2.62 NBR 50 Shore A - Black - ses-301999 O-ring Black61.7 mm  x 2.62 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 17x1.5 NBR 50 Shore A - Black - ORSV2-17x1.5-NBR49 O-ring Black17 mm  x 1 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 125x2 NBR 55 Shore A - Black - ORSV2-125x2-NBR54 O-ring Black125 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 290x8 NBR 55 Shore A - Red - ses-300932 O-ring Red291 mm  x 8 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 5.8x1.9 NBR 55 Shore A - Black - ses-303126 O-ring Black5.8 mm  x 1.9 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 31x3 NBR 50 Shore A - Black - ORSV2-31x3-NBR49 O-ring Black31 mm  x 3 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 21x2 NBR 55 Shore A - Black - ORSV2-21x2-NBR54 O-ring Black21 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 15.24x5.33 NBR 45 Shore A - Black - ses-317958 O-ring Black15.25 mm  x 5.33 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 91.67x3.53 NBR 55 Shore A - Black - ORSV2-91.67x3.53-NBR54 O-ring Black91.68 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 26.64x2.62 NBR 55 Shore A - Black KTW - ORSV2-26.64x2.62-NBR54 O-ring Black26.65 mm  x NBR-Buna50 Shore A Jaicon-bekijk icon
O-Ring 80x5 NBR 55 Shore A - Black - ORSV2-80x5-NBR54 O-ring Black80 mm  x 5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 90x20 NBR 55 Shore A - Black - ORSV2-90x20-NBR54 O-ring Black90 mm  x 20 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 38x8 NBR 50 Shore A - Black - ORSV2-38x8-NBR49 O-ring Black38 mm  x 8 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 24x13 NBR 55 Shore A - Black - ORSV2-24x13-NBR54 O-ring Black24 mm  x 13 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 51x3.5 NBR 55 Shore A - Black - ORSV2-51x3.5-NBR54 O-ring Black51 mm  x 3 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 36x8 NBR 55 Shore A - Black - ORSV2-36x8-NBR54 O-ring Black36 mm  x 8 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 14x1 NBR 55 Shore A - Black - ORSV2-14x1-NBR54 O-ring Black14 mm  x 1 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 144x3.5 NBR 45 Shore A - Black - ses-500234 O-ring Black144 mm  x 3.5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 115x14 NBR 55 Shore A - Black - ORSV2-115x14-NBR54 O-ring Black115 mm  x 14 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 29x5 NBR 55 Shore A - Black - ORSV2-29x5-NBR54 O-ring Black29 mm  x 5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 72x8 NBR 55 Shore A - Black - ORSV2-72x8-NBR54 O-ring Black72 mm  x 8 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 95x10 NBR 55 Shore A - Black - ORSV2-95x10-NBR54 O-ring Black95 mm  x 10 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 64x3.5 NBR 50 Shore A - Black - ses-478323 O-ring Black64 mm  x 3.5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 32x2 NBR 45 Shore A - Black DVGW-Gasversorgung - ORSV2-32x2-NBR44 O-ring Black323 mm  x 2 mm NBR-Buna50 Shore A Jaicon-bekijk icon
O-Ring 60x3 NBR 50 Shore A - Black - ORSV2-60x2-NBR49 O-ring Black60 mm  x 3 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 14x2 NBR 55 Shore A - Black - ORSV2-14x2-NBR54 O-ring Black14 mm  x 2 mm NBR-Buna50 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 50 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 50 Shore A made from NBR, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.