NBR O-ring 70 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	114 mm x 1 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	11.7 mm x	NBR-Buna		Nee
O-ring Black	181 mm x 6 mm	NBR-Buna		Nee
O-ring Black	443.7 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	484.5 mm x 5.7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	569 mm x 8.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	688 mm x 9 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	786 mm x 20 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	846 mm x 5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	916 mm x 5.33 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	977 mm x 9 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	2951.77 mm x 8.99 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	17 mm x 6.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	94.86 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	117.6 mm x 5.33 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	886 mm x 5.3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	956 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	1401 mm x 12 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	13.9 mm x 2.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	142.6 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	114.6 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	563 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	710 mm x 3.5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	736 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	771 mm x 7 mm	NBR-Buna	75 Shore A	Nee
O-ring Black	17.5 mm x	NBR-Buna		Nee
O-ring Black	28 mm x 4 mm	NBR-Buna		Nee
O-ring Black	37 mm x 6 mm	NBR-Buna		Nee
O-ring Black	50 mm x 5 mm	NBR-Buna		Nee
O-ring Black	66.36 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	801 mm x 5 mm	NBR-Buna		Nee
O-ring Black	130 mm x 10 mm	NBR-Buna	75 Shore A	Nee
O-ring Black	14.5 mm x	NBR-Buna		Nee
O-ring Black	253 mm x 5 mm	NBR-Buna		Ja
O-ring Black	355 mm x 8 mm	NBR-Buna		Nee
O-ring Black	462 mm x 10 mm	NBR-Buna		Nee
O-ring Black	65 mm x 1 mm	NBR-Buna		Nee
O-ring Black	8.5 mm x 2 mm	NBR-Buna		Nee
O-ring Black	739 mm x 5.34 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	116.8 mm x 4.4 mm	NBR-Buna	70 Shore A	Nee

29001 - 29040 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.