NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	177 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	494.2 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	253.7 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	551 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	312 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	2 mm x 1.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	561 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	335 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	648 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	352 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	519 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	380 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	399 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	481 mm x 12 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	504 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	591 mm x 15 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	641 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	740 mm x 6.35 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	371 mm x 12 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	448 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	471 mm x 5.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	491.50 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	590 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	562.9 mm x 8.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	653 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	623 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	62 mm x 4.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	683 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	66.6 mm x 4.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	105.52 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	78 mm x 3.45 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	95 mm x 1.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	116.85 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	119 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	103 mm x 3.1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	858 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	891 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	913.97 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	944.4 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	983 mm x 7 mm	NBR-Buna	90 Shore A	Nee

25041 - 25080 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.