NBR O-ring 70 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	39.35 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	142.48 mm x	NBR-Buna		Nee
O-ring Black	297 mm x 7 mm	NBR-Buna		Nee
O-ring Black	401 mm x 6 mm	NBR-Buna		Nee
O-ring Black	5 mm x 1 mm	NBR-Buna		Nee
O-ring Black	77.6 mm x 6 mm	NBR-Buna		Nee
O-ring Black	19.52 mm x 2.03 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	23.7 mm x 1.02 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	43.93 mm x 2.9 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	63.5 mm x 0.99 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	104.28 mm x 4.57 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	82.35 mm x 2.62 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	100 mm x 2.2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	253 mm x 13 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	439.6 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	633 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	164 mm x 4 mm	NBR-Buna	70 Shore A	Ja
O-ring Black	40.35 mm x 1.75 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	59.6 mm x 4.25 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	56.8 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	124.4 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	134.6 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	237 mm x 5.8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	240 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	330 mm x 15 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	427 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	470 mm x 2.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	642 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	691 mm x 5.34 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	801 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	876.4 mm x 6.35 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	949 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	1440.6 mm x 10.82 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	17.3 mm x 1 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	104.6 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	276 mm x 3.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	514 mm x 5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	741 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	11 mm x 5 mm	NBR-Buna		Nee
O-ring Black	229 mm x 6 mm	NBR-Buna		Nee

29081 - 29120 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.