NBR O-ring 70 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Gray	14 mm x 3 mm	NBR-Buna		Ja
O-ring Black	281 mm x 5 mm	NBR-Buna		Nee
O-ring Black	394 mm x 6 mm	NBR-Buna		Nee
O-ring Black	51 mm x 5 mm	NBR-Buna		Nee
O-ring Black	72 mm x 5 mm	NBR-Buna		Nee
O-ring Black	90 mm x 7 mm	NBR-Buna		Nee
O-ring Black	14.8 mm x 1.2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	16.9 mm x 1.9 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	13.56 mm x 2.55 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	46.100 mm x 3.99 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	54 mm x 2.03 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	15 mm x 2.8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	8 mm x 1.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	34 mm x 3.25 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	48.6 mm x 2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	66 mm x 8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	120 mm x 8 mm	NBR-Buna	75 Shore A	Nee
O-ring Black	485 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	569 mm x 3.53 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	701 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	794.4 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	861 mm x 5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	929 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	1201 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	11.11 mm x 1.59 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	33.6 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	53.4 mm x 1.2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	365 mm x 8.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	33.82 mm x 0.79 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	15.50 mm x 1.52 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	24 mm x 1.5 mm	NBR-Buna	70 Shore A	Ja
O-ring Black	35.9 mm x 3.1 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	61.88 mm x 0.81 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	58.33 mm x 2.03 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	93.69 mm x 6.99 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	133.83 mm x 2.62 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	168.4 mm x 15 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	313 mm x 8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	13 mm x 1 mm	NBR-Buna		Nee
O-ring Black	27.5 mm x	NBR-Buna		Nee

29041 - 29080 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.