O-Rings

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Installation sketch O-Ring

The O-rings of Freudenberg Sealing Technologies are used for the static sealing of idling machine parts against liquids and gases. The versatile applications include water fittings, air conditioners, vehicle engines or dentist drills. In addition, the classic O-ring seal is also available in special shapes, making it suitable as a dynamic sealing element, for example as piston or rod seals in hydraulics. O-rings are manufactured from a wide variety of materials for all requirements.

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Filtered items for O-Ring ( 22107 hits )

  design material AS568 # d1 d2 brand legacy item no. item no. SP | IP    
cross-section thumbnail O-Ring OR  DHH OR DHH 70 NBR N70 - 0.029 0.004 Dichtomatik - 75182058 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 70 EPDM E701B - 0.029 0.040 Dichtomatik - 75056232 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 70 NBR N702V - 0.029 0.040 Dichtomatik - 75100000 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 90 NBR N903X - 0.029 0.040 Dichtomatik - 75101220 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 70 VMQ SI700602 S702A - 0.029 0.040 Dichtomatik - 75101609 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 75 FKM V751Z - 0.029 0.040 Dichtomatik - 75101996 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 90 FKM V904Z - 0.029 0.040 Dichtomatik - 75102390 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 75 FKM V755ZBR - 0.029 0.040 Dichtomatik - 75102766 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 70 EPDM E703B - 0.029 0.040 Dichtomatik - 75103155 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 70 EPDM EP702706 E703X - 0.029 0.040 Dichtomatik - 75103156 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 70 EPDM E700N - 0.029 0.040 Dichtomatik - 75105575 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 75 FKM V750F - 0.029 0.040 Dichtomatik - 75108902 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 90 FKM BV75 - 0.029 0.040 Dichtomatik - 75111429 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 70 CR C70 - 0.029 0.040 Dichtomatik - 75112046 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 75 EPDM E750FMD - 0.029 0.040 Dichtomatik - 75112451 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 80 HNBR H802B - 0.029 0.040 Dichtomatik - 75113144 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 90 HNBR H901B - 0.029 0.040 Dichtomatik - 75113513 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 75 NBR N750FMD - 0.029 0.040 Dichtomatik - 75114161 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 75 VMQ S750FMD - 0.029 0.040 Dichtomatik - 75114691 Details
cross-section thumbnail O-Ring OR  DHH OR DHH 75 FKM V750FMD - 0.029 0.040 Dichtomatik - 75116541 Details

O-Rings from Freudenberg Sealing Technologies: Diverse usage options

Continuous circular sealing rings with a circular cross-section; these are O-Rings. A classic in the world of seals which, as highly versatile products, can be used in a multitude of ways. In most cases, the exceptionally reliable sealing O-Rings from Freudenberg Sealing Technologies are used for the static sealing of idling machine parts against liquids and gases, as required in water valves, air conditioning systems, vehicle engines and dental drills. O-Rings are also ideal as dynamic sealing elements, however, including for piston or rod seals in hydraulics.

O-Rings: Versatile materials to meet every requirement

Freudenberg Sealing Technologies utilises a wide range of materials to ensure that the O-Rings meet the needs in their equally diverse range of applications. For example, FEP/PFA-coated O-Rings combine the excellent chemical resistance of PTFE with the elastic behaviour of an elastomer. These O-Rings are used when the chemical resistance of an elastomer O-Ring made from PTFE is inadequate because the seal also needs to provide elastic properties. Depending on its field of application, the O-Ring must be resistant to ozone, swelling and high temperatures. Other requirements demand chemical stability, pressure resistance or flexibility at cold temperatures. The food industry, in turn, demands FDA conformity, i.e. food safe. All these varied requirements are met by O-Rings from Freudenberg Sealing Technologies.

O-Rings: Reduced abrasion, long service life

Depending on the application, Freudenberg Sealing Technologies offers O-Rings which are coated with suitable powders, special greases, emulsions or varnishes. This allows this all-rounder product to be optimised for the use in question. Thanks to reduced abrasion and wear, this ensures a significantly longer service life. Depending on its field of application, an O-Ring must be resistant to ozone, swelling and high temperatures. Other requirements demand chemical stability, pressure resistance or flexibility at cold temperatures. The food industry, in turn, demands FDA conformity, i.e. food safe. All these varied requirements are met by O-Rings from Freudenberg Sealing Technologies.

Range of O-Rings: Also available in custom designs

Freudenberg Sealing Technologies offers a large range of O-Rings for a wide variety of applications, including in special designs and with a custom protective layer. The complete range of O-Rings, including product and material data sheets, ordering options, prices and availability as well as dealer contacts, can be found in our FST e-catalogue.