NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	314.6 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	228 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	50.9 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	57 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	142 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	149 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	6.02 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	387 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	561 mm x 8 mm	NBR-Buna	90 Shore A	Ja
O-ring Black	116.9 mm x	NBR-Buna	99 Shore A	Nee
O-ring Black	55 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	256 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	108 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	259.3 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	26.66 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	64 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	45 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	291 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	56 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	82 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	125 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	120 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	159 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	7.66 mm x	NBR-Buna	78 Shore A	Nee
O-ring Gray	94.85 mm x	NBR-Buna	90 Shore A	Ja
O-ring Black	981 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	50 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	195 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	101.3 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	276 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	380 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	17.13 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	51.2 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	82.15 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	154.8 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	526 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	190 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	261 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	118 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	128 mm x 8 mm	NBR-Buna	90 Shore A	Nee

521 - 560 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.