NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	2.25 mm x 0.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	344 mm x 1.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	741.6 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	79 mm x 1.25 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	218 mm x 12 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	46 mm x 21 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	990.7 mm x 6.35 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	46.7 mm x 5.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	714 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	16 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	506.07 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	672 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	144 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	4.01 mm x 1.19 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	1043 mm x 8.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	362 mm x 7.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	15.8 mm x 2.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	998 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	442 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	300 mm x 8.5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	56 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	161 mm x 9 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	866 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	504 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	304 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	46 mm x 9.52 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	38 mm x 2.6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	164 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	208.96 mm x 5.33 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	484 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	247.3 mm x 3.53 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	16.5 mm x 1.3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	10.9 mm x 1.8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	190 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	801 mm x 14.4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	17.25 mm x 0.86 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	731 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	907 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	736 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	359 mm x 4 mm	NBR-Buna	90 Shore A	Nee

25881 - 25920 of 25941 products

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.