NBR O-rings 50 Shore A

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 120.25x3.53 NBR 55 Shore A - Black - ORSV2-120.25x3.53-NBR54 O-ring Black120.26 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
Placeholder O-ring Black175 mm  x 4 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 21x2 NBR 55 Shore A - Black - ORSV2-21x1-NBR54 O-ring Black21 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 190x5 NBR 55 Shore A - Black - ORSV2-190x5-NBR54 O-ring Black190 mm  x 5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 27.8x3.2 NBR 55 Shore A - Black - ORSV2-27.8x3.2-NBR54 O-ring Black27.9 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 32x8 NBR 55 Shore A - Black - ORSV2-32x8-NBR54 O-ring Black32 mm  x 8 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 4x2 NBR 50 Shore A - Black - ORSV2-4x2-NBR49 O-ring Black4 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 18x2.5 NBR 55 Shore A - Black - ORSV2-18x2.5-NBR54 O-ring Black18 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 126.3x5 NBR 45 Shore A - Black - ORSV2-126.3x5-NBR44 O-ring Black126 mm  x 5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 72x2 NBR 45 Shore A - Black - ORSV2-72x2-NBR44 O-ring Black72 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 20.35x1.78 NBR 50 Shore A - Black - ses-312361 O-ring Black20.36 mm  x 1.78 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 250x8 NBR 55 Shore A - Black - ORSV2-250x8-NBR54 O-ring Black250 mm  x 8 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 59x6 NBR 45 Shore A - Black - ses-477361 O-ring Black59 mm  x 6 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 24x5 NBR 55 Shore A - Black - ORSV2-24x5-NBR54 O-ring Black24 mm  x 5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 183x9 NBR 55 Shore A - Black - ORSV2-183x9-NBR54 O-ring Black183 mm  x 9 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 220x5 NBR 55 Shore A - Black - ORSV2-220x5-NBR54 O-ring Black221 mm  x 5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 6x1.5 NBR 50 Shore A - Black - ORSV2-6x1.5-NBR49 O-ring Black6 mm  x 1 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 19x4 NBR 55 Shore A - Black - ORSV2-19x4-NBR54 O-ring Black19 mm  x 4 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 172x3 NBR 50 Shore A - Black - ORSV2-172x3-NBR49 O-ring Black172 mm  x 3 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 1.07x1.2 NBR 50 Shore A - Black - ORSV2-1.07x1.2-NBR49 O-ring Black1.07 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 11x2 NBR 55 Shore A - Black - ORSV2-11x2-NBR54 O-ring Black11 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 18.1x1.6 NBR 50 Shore A - Black - ses-302596 O-ring Black18.2 mm  x 1.6 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 23.83x6.48 NBR 50 Shore A - Black - ses-327062 O-ring Black23.84 mm  x 6.48 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 169.2x5.7 NBR 50 Shore A - Black - ORSV2-169.2x5.7-NBR49 O-ring Black169.3 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 75x4 NBR 45 Shore A - Black - ORSV2-75x4-NBR44 O-ring Black75 mm  x 4 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 221.62x5.34 NBR 55 Shore A - Black - ORSV2-221.62x5.34-NBR54 O-ring Black221.63 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 325x10 NBR 55 Shore A - Black - ORSV2-325x10-NBR54 O-ring Black325 mm  x 10 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 79x4 NBR 55 Shore A - Black - ORSV2-79x4-NBR54 O-ring Black79 mm  x 4 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 16x5 NBR 50 Shore A - Black - ORSV2-16x5-NBR49 O-ring Black16 mm  x 5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 49x1.5 NBR 50 Shore A - Black - ses-280095 O-ring Black49 mm  x 1.5 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 22x6 NBR 55 Shore A - Black - ORSV2-22x6-NBR54 O-ring Black22 mm  x 6 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 54x3 NBR 55 Shore A - Black - ORSV2-54x3-NBR54 O-ring Black54 mm  x 3 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 14x3 NBR 55 Shore A - Black - ORSV2-14x3-NBR54 O-ring Black14 mm  x 3 mm NBR-Buna50 Shore A Neeicon-bekijk icon
Placeholder O-ring Gray66.28 mm  x NBR-Buna50 Shore A Jaicon-bekijk icon
O-Ring 15x4 NBR 55 Shore A - Black - ORSV2-15x4-NBR54 O-ring Black15 mm  x 4 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 180x2 NBR 55 Shore A - Black - ORSV2-180x2-NBR54 O-ring Black181 mm  x 2 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 69.52x2.62 NBR 55 Shore A - Black - ORSV2-69.52x2.62-NBR54 O-ring Black69.53 mm  x NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 400x6 NBR 55 Shore A - Black - ORSV2-400x6-NBR54 O-ring Black401 mm  x 6 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 42x14 NBR 55 Shore A - Black - ORSV2-42x14-NBR54 O-ring Black42 mm  x 14 mm NBR-Buna50 Shore A Neeicon-bekijk icon
O-Ring 73x10 NBR 55 Shore A - Black - ORSV2-73x10-NBR54 O-ring Black73 mm  x 10 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.