Nitrile / NBR
Nitrile / NBR
NBR Nitrile
NBR (Nitrile), chemically, is a copolymer of butadiene and acrylonitrile. Acrylonitrile content varies in commercial products from 18% to 50%. As the NBR content increases, resistance to petroleum base oils and hydrocarbon fuels increases, but low temperature flexibility decreases.
For more information, please visit nbr nitrile rubber skeleton oil seal supplier.
About NBR
Due to its excellent resistance to petroleum products, and its ability to be compounded for service over a temperature range of -35°C to +120°C (-30°F to +250°F), Nitrile /NBR is the most widely used elastomer in the seal industry today. Also many military rubber specifications for fuel and oil resistant O-rings require nitrile based compounds.
It should be mentioned that to obtain good resistance to low temperature, it is often necessary to sacrifice some high temperature resistance. Nitrile compounds are superior to most elastomers with regard to compression set, tear, and abrasion resistance. Nitrile compounds do not possess good resistance to ozone, sunlight, or weather. They should not be stored near electric motors or other ozone generating equipment.
NBR applications
NBR parts should be kept from direct sunlight. However, this can be improved through compounding. NBR is the standard material for hydraulics and pneumatics. NBR resists oil-based hydraulic fluids, fats, animal and vegetable oils, flame retardant liquids (HFA, HFB, HFC), grease, water, and air. Special low-temperature compounds are available for mineral oil-based fluids. By hydrogenation, carboxylic acid addition, or PVC blending, the nitrile polymer can meet a more specified range of physical or chemical requirements. The quality of Nitrile-compounds depends on the percentage of acrylonitrile in the base polymer.
Datasheets NBR
The table below shows the available datasheets for this material in pdf. Safety datasheets are available here.
Ask ERIKS
For more information on Nitrile / NBR or one of our other o-ring materials please contact one of the ERIKS Sealing & Polymer locations or fill in the form below.
OIL SEAL NBR
Double Lip Rubber Cover (High Pressure) Oil Seal
BABSL, WASY, AS-P
Specs:
Radial shaft seal with rubber covered O.D. Short, flexible suspended, spring loaded sealing lip and additional dust lip.
Are you interested in learning more about oil seal manufacturing? Contact us today to secure an expert consultation!
Material:
NBR (Natural Rubber), Plain Steel insert, Spring Steel spring.
Max Temperature: -40°C/-40°F – 100°C/ 212°F
Max Surface Speed:
Max Pressure:
Application:
Mineral Oils, Synthetic Oils
For sealing pressurized media without additional backup ring, e g for rotational pressure sealing in hydraulic pumps, hydraulic motors, hydrodynamic clutches. Rubber covered O.D. Assures sealing in the housing bore, even where there is considerable surface roughness, thermal expansion or split housing. Particularly suitable for sealing low viscosity and gaseous media. Additional dust lip to avoid ingress of light to medium dust and dirt. Where high thermal stability and chemical resistance are required FKM (Viton) material should be used.
If you are looking for more details, kindly visit seal steering rack.