NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	92.6 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	654 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	80 mm x 3.55 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	32.93 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	185 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	188 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	263.54 mm x 10.29 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	77.7 mm x 5.89 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	281 mm x 6.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	302 mm x 3.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	212 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	254.8 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	259 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	744 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	519 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	712 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	46 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	31 mm x 1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	47.7 mm x 2.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	59.53 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	9.9 mm x 1.24 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	11 mm x 1.98 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	11.5 mm x 3.25 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	740 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	514 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	752 mm x 5.7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	58 mm x 3.55 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	717 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	339 mm x 3.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	729 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	406 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	340 mm x 8.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	304 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	405 mm x 15 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	413 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	247.25 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	183.9 mm x 3.1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	187.63 mm x 2.62 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	223 mm x 3.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	199.6 mm x 2 mm	NBR-Buna	90 Shore A	Nee

23841 - 23880 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.