FFKM O-rings EN7FD

close
FILTERS
Cord Thickness (mm) expand_less
Approvals expand_less
Inner Diameter (mm) expand_less
Hardness (Shore A) expand_less

 

 

19118 products
Most sold arrow_drop_down
ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 41.3x1.8 Kalrez-FFKM - 75 Shore A - Black - SES-752247 O-ring Black41.4 mm  x 1.8 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 461.4x8.6 Kalrez-FFKM - 75 Shore A - Black - SES-756441 O-ring Black461.5 mm  x 8.6 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 11.8x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-606089 O-ring Black11.9 mm  x 2.4 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 71.88x3 Kalrez-FFKM - 75 Shore A - Black - SES-610336 O-ring Black71.89 mm  x 3 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 278.7x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-614499 O-ring Black278.8 mm  x 5.33 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 107x8 Kalrez-FFKM - 75 Shore A - Black - SES-753568 O-ring Black107 mm  x 8 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 14.5x3.2 Kalrez-FFKM - 75 Shore A - Black - SES-757746 O-ring Black14.5 mm  x 3.2 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 42x4.5 Kalrez-FFKM - 75 Shore A - Black - SES-608878 O-ring Black42 mm  x 4.5 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 175.41x6.35 Kalrez-FFKM - 75 Shore A - Black - SES-613059 O-ring Black175.42 mm  x 6.35 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 75.06x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-686711 O-ring Black75.07 mm  x 2.62 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 439x9 Kalrez-FFKM - 75 Shore A - Black - SES-756292 O-ring Black439 mm  x 9 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
Placeholder O-ring Black31.5 mm  x 6.5 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 141x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-612376 O-ring Black142 mm  x 2.5 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 520x8 Kalrez-FFKM - 75 Shore A - Black - SES-616532 O-ring Black520 mm  x 8 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 11.11x1.59 Kalrez-FFKM - 75 Shore A - Black - SES-606009 O-ring Black11.11 mm  x 1.59 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 68x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-610196 O-ring Black68 mm  x 3.5 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 271x5 Kalrez-FFKM - 75 Shore A - Black - SES-614427 O-ring Black271 mm  x 5 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
Placeholder O-ring Black98.6 mm  x 1.5 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 13.3x1.55 Kalrez-FFKM - 75 Shore A - Black - SES-757678 O-ring Black13.4 mm  x 1.55 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 230x8 Kalrez-FFKM - 75 Shore A - Black - SES-613894 O-ring Black231 mm  x 8 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 73x10 Kalrez-FFKM - 75 Shore A - Black - SES-752957 O-ring Black73 mm  x 10 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 5.7x3.3 Kalrez-FFKM - 75 Shore A - Black - SES-757149 O-ring Black5.7 mm  x 3.3 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 42.5x5.1 Kalrez-FFKM - 75 Shore A - Black - SES-608911 O-ring Black42.6 mm  x 5.1 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 178x4 Kalrez-FFKM - 75 Shore A - Black - SES-613097 O-ring Black179 mm  x 4 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
Placeholder O-ring Black38.6 mm  x 4 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 446x9 Kalrez-FFKM - 75 Shore A - Black - SES-756336 O-ring Black446 mm  x 9 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 336x7.4 Kalrez-FFKM - 75 Shore A - Black - SES-755601 O-ring Black336 mm  x 7.4 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 9x3 Kalrez-FFKM - 75 Shore A - Black - SES-605713 O-ring Black9 mm  x 3 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 62.8x2.65 Kalrez-FFKM - 75 Shore A - Black - SES-609965 O-ring Black62.9 mm  x 2.65 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 140.37x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-612366 O-ring Black140.38 mm  x 3.53 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 531x5 Kalrez-FFKM - 75 Shore A - Black - SES-616594 O-ring Black532 mm  x 5 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 336.6x8 Kalrez-FFKM - 75 Shore A - Black - SES-755611 O-ring Black336.7 mm  x 8 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 37.5x3.15 Kalrez-FFKM - 75 Shore A - Black - SES-608588 O-ring Black37.6 mm  x 3.15 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 159.5x3.05 Kalrez-FFKM - 75 Shore A - Black - SES-612777 O-ring Black159.6 mm  x 3.05 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 652x10 Kalrez-FFKM - 75 Shore A - Black - SES-617008 O-ring Black653 mm  x 10 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 400x6.5 Kalrez-FFKM - 75 Shore A - Black - SES-756022 O-ring Black401 mm  x 6.5 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 1.24x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-604754 O-ring Black1.24 mm  x 2.62 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 44x2.6 Kalrez-FFKM - 75 Shore A - Black - SES-608993 O-ring Black44 mm  x 2.6 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 183.83x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-613184 O-ring Black183.84 mm  x 2.62 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon
O-Ring 41x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-752227 O-ring Black41 mm  x 5.33 mm FFKM - FFPM75 Shore A Jaicon-bekijk icon

To provide even greater thermal stability and solvent resistance, tetrafluoroethylene (TFE) containing fluoroelastomer terpolymers were introduced in 1959. The latest FKM polymers have a much broader fluids resistance profile than standard fluoroelastomers, and are able to withstand strong bases and ketones as well as aromatic hydrocarbons, oils, acids, and steam. In 1975 a new fluoroelastomer family was introduced by Asahi Glass Co., FEPM, based on an alternating copolymer of TFE and propylene. It is marketed under the trade name AFLAS®.

The chemical resistance and high-temperature stability is due to the bulkiness of the fluorine atoms, shielding the polymer backbone and carbon-fluor bond from attack, and the high bonding energy of the carbon-fluor bond.

FFKM gives the indication for the types of improved properties for different applications.


Material: Fluorocarbon elastomers
Fluorocarbon rubber is an elastomer

Fluorocarbon elastomers are highly fluorinated carbon-based polymers that are used in applications that must withstand aggressive chemical and ozone attacks.

In general, with increasing fluorine content, the resistance to chemical attack is improved, while the low temperature properties decrease. However, there are special quality fluorocarbons that do have a high fluorine content at low temperature properties.

Good qualities:

  • Chemical compatibility
  • Good temperature resistance
  • Low compression setting
  • Resistant to minerals, oils and fats
  • Good gas tightness
  • Excellent resistance to non-polar media
  • Excellent weather and aging stability
  • Very good oxygen and ozone stability
  • Operating temperature range from -26 °C to +205/230 °C (-15 °F to +400/440 °F)
  • When used briefly, the material can tolerate even higher temperatures
  • Special compounds with improved chemical resistance are available
  • Brake fluids based on glycol
  • Low molecular weight organic acids

FFKM
FFKM are perfluoroelastomeric compounds that contain an even greater amount of fluorine than FKMO fluoroelastomers.

FFKM have an improved resistance to high temperatures and chemicals and are even resistant to environments where oxygen plasma is present for many hours. Certain grades have a maximum continuous service temperature of 327 °C / 621 °F. They are often used to make o-rings and gaskets that are used to make o-rings and gaskets that are used in applications where contact with hydrocarbons or highly corrosive liquids the case, or when a wide temperature range is encountered.

On this page we offer our range of N7FD certified  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 N7FD certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.