NBR O-ring 70 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Gray	155 mm x 4 mm	NBR-Buna	70 Shore A	Ja
O-ring Black	12.7 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	340 mm x 5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	215 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	516 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	20.30 mm x Goedefleibiliteitbijlagetemperaturen mm	NBR-Buna	62 Shore A	Nee
O-ring Black	134 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	279.3 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	120 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	44 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	94.63 mm x Goedefleibiliteitbijlagetemperaturen mm	NBR-Buna	70 Shore A	Nee
O-ring Black	97.80 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	1091 mm x 12 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	72 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Gray	291 mm x 3 mm	NBR-Buna	70 Shore A	Ja
O-ring Black	1.07 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	410 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	262 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	15.48 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	71 mm x 1 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	36 mm x 1 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	901 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	79 mm x 2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	155 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	133 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	170 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	97 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	385 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	501 mm x 9 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	18.43 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	11 mm x 2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	174 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Gray	40 mm x 10 mm	NBR-Buna	70 Shore A	Ja
O-ring Black	414 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	150 mm x 13 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	23.53 mm x Goedefleibiliteitbijlagetemperaturen mm	NBR-Buna	78 Shore A	Nee
O-ring Black	611 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	70 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	196.3 mm x	NBR-Buna	99 Shore A	Nee
O-ring Black	741 mm x 8 mm	NBR-Buna	70 Shore A	Nee

441 - 480 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.