NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	342 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	556 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	403 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	738 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	365 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	712 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	427 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	152.8 mm x 1.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	538 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	571 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	636 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	73.7 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	554 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	741 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	731 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	342.8 mm x 8.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	355 mm x 3.55 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	520.07 mm x 6.99 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	378 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	542 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	470 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	865 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	894 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	915 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	944 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	971 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1173.07 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	7.8 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	252 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	223 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	285 mm x 2.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	300 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	405.27 mm x 7.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	520.6 mm x 9.98 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	433 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	468 mm x 6.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	481.47 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	501 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	551.4 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	559 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee

24881 - 24920 of 25941 products

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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.