O-RING 21X4 NBR

OR4.0002100 is an o-ring and can be used in rod/piston applications. The material used on this o-ring is made of NBR 70 shore.

The dimensions has an inner diameter of 21 mm, an outer diameter of 29 mm and a height of 4 mm.

About the sealing profile OR

O-rings can be used everywhere in both hydraulic and pneumatic applications. They are manufactured in different materials that suit their environment. If a special certification of the material is needed, please contact us by phone or email.

About the material NBR

Nitrile is a widely used nitrile butadiene and acrylo nitrile polymer. The NBR formulas typically contains between 30% and 50% acrylonitrile (ACN). The NBR which has a working temperature between -40°C and +100°C show extremely high resistance under different working conditions such as mineral oils (H, H-L and H-LP type lubricating oils) and grease and mineral based fire resistance oils (HFB and HFC group oils), vegetable and organic oils, and aliphatic hydrocarbons (propane, butane, petrol). NBR is not recommended for aromatic hydrocarbons (benzene, trichloroethylene, HFD type fire resistance oils), glycol and ether contained break hydraulics.