NBR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	716 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Gray	38 mm x 3 mm	NBR-Buna	90 Shore A	Ja
O-ring Black	289 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	471 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	77 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	239 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	27 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	621 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	90 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	115 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	205 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	546 mm x 15 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	81.3 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	157 mm x 3 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	104 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	158.4 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	6.35 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	11 mm x 5 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	821 mm x 10 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	837 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	27 mm x 1 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	215.10 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	247 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Gray	259 mm x 4 mm	NBR-Buna	90 Shore A	Ja
O-ring Black	621 mm x 6 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	437 mm x 7 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	45 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	82.23 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	92 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	204 mm x 3 mm	NBR-Buna	90 Shore A	Ja
O-ring Black	98 mm x 12 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	105 mm x 2 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	39.6 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	8.2 mm x	NBR-Buna	90 Shore A	Nee
O-ring Gray	130 mm x 3 mm	NBR-Buna	90 Shore A	Ja
O-ring Black	509 mm x 8 mm	NBR-Buna	90 Shore A	Nee
O-ring Black	542.10 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	7.6 mm x	NBR-Buna	62 Shore A	Nee
O-ring Black	61.92 mm x	NBR-Buna	90 Shore A	Nee
O-ring Black	243 mm x 3 mm	NBR-Buna	90 Shore A	Nee

361 - 400 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.