NBR O-ring 70 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	326 mm x 11 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	7.8 mm x 3.2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	451 mm x 11 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	49.54 mm x 0.84 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	652 mm x 9 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	75.93 mm x 1.75 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	784 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	159.6 mm x 3.05 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	885 mm x 5.3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	317 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	985 mm x 8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	387 mm x 3.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	12.83 mm x 3.68 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	594 mm x 5.33 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	105 mm x 14 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	784 mm x 5.3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	591 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	872 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	586 mm x 3.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	976 mm x 8.4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	9.5 mm x 3.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	96.7 mm x 3.53 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	293.7 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	62.4 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	469.6 mm x 6.4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	677 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	823 mm x 5.34 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	955 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	8.80 mm x 1.14 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	153.9 mm x 3.1 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	740 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	738 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	17 mm x 1.4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	51.100 mm x 2.01 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	114 mm x 9 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	202 mm x 8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	361 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	549 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	758 mm x 5.33 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	878 mm x 6.35 mm	NBR-Buna	70 Shore A	Nee

29241 - 29280 of 29564 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 70 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 70 Shore A made from NBR, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.