NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	72 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	172.6 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	9.5 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	3 mm x 1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	901 mm x 10 mm	NBR-Buna	90 Shore A	Ja
O-ring Black	66 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	401 mm x 10 mm	NBR-Buna	90 Shore A	Ja
O-ring Black	505 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	14 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	94.63 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	306 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	291 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	106 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	49 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	261 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Gray	89.3 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	70 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	195 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	23.5 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	249 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	571 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	105 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	71.6 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	415 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	584 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	22.5 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	12.43 mm x	NBR-Buna	78 Shore A	Nee
O-ring Black	32 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	336 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Gray	81.93 mm x	NBR-Buna	90 Shore A	Ja
O-ring Black	28 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	54 mm x 4 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	177 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	84 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	69 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	161 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	9 mm x 2.2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	192 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	115 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	681 mm x 7 mm	NBR-Buna	90 Shore A	Nee

481 - 520 of 25941 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 90 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 90 Shore A made from NBR, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.