Elastomer O-Rings


O-Rings are torus-shaped (i.e. doughnut-shaped) objects made from elastomeric compounds such as natural or synthetic rubber, and are used to seal mechanical parts against fluid movement (air or liquid). O-Rings perform their sealing action by deforming to take the shape of their cavity, after being oversized to guarantee an predetermined interference fit.

Different elastomer materials possess unique properties to withstand specific guilds and temperatures.

O-ring can be moulded in a wide range of compounds in hard-messes from 40 to 90 Shore A.

These materials include:

  • Buna N (NBR)
  • Ethylene-Propylene (EPDM)
  • Flourocarbon (Viton/FKM)
  • Chloroprene (CR)
  • Hydrogenated Nitrile (HNBR)
  • Silicon Rubber (MR, VMQ, PVMQ)
  • Polyacrylate (AMC)
  • Others

Our O-Rings are manufactured to international standards: AS 568A, DIN 3771, JIS and Metric. Custom sizes of almost any dimensions.


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