The ring is important.

COG is absolut uncompromising with the
quality of their products. Because this is the
reason why our clients are among the best
in their respective industries. COG delivers
from the world's largest O-Ring warehouse
(over 45,000 items in stock) most differerent
compounds, incl. FFKM/FFPM. Come and test
over 145 years of experience and innovation!

  • Over 45,000 items in stock
  • In-house mixing, mixture development and production
  • also small-scale production

Our product range includes:

  • O-Rings, produced according to ISO 3601 and elastomer sealings: All current materials: AU, CR, EPDM, EPM, FEPM, FFKM, FPM, FVMQ, HNBR, IIR, NBR, NR, PTFE, PVMQ, VMQ. Here you will find more information about sealing materials
  • Inside diameter from 0.74 to 1400 mm; Strength of thread from 0.6 to 30mm
  • With the production technique Endless Vulcanisation: all inner diameters between 1400 mm and 3000 mm possible for FPM, NBR, HNBR and EPM compounds with a cord diameter from 5 to 14 mm.
  • Shape: In small ranges: sealing collars, flat rings, square rings can be produced from a model or sketch from the above mentioned materials.





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