NBR O-ring 70 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	90 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	9.20 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	39.6 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	63 mm x 5 mm	NBR-Buna	70 Shore A	Nee
O-ring Gray	32 mm x 4 mm	NBR-Buna	70 Shore A	Ja
O-ring Black	481 mm x 8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	107 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	188 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	155 mm x 5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	109 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	225 mm x 12 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	135 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	531 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	26 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	181 mm x 1 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	43 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	11 mm x 2 mm	NBR-Buna	70 Shore A	Nee
O-ring Gray	69.3 mm x	NBR-Buna	70 Shore A	Ja
O-ring Black	130 mm x 10 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	993 mm x 8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	170.83 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	12 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	941 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	751 mm x 5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	46 mm x 5 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	82 mm x 7 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	79.78 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	383.2 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	136 mm x 2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	34.66 mm x	NBR-Buna	78 Shore A	Nee
O-ring Black	123 mm x 3 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	82 mm x 8 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	100 mm x 14 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	866 mm x 9 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	131 mm x 2 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	138 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	108 mm x 4 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	144.4 mm x	NBR-Buna	70 Shore A	Nee
O-ring Black	92 mm x 6 mm	NBR-Buna	70 Shore A	Nee
O-ring Black	179 mm x 10 mm	NBR-Buna	70 Shore A	Nee

361 - 400 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.