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NBR O-Ring Seals

Nitrile rubber (NBR) · Molded O-ring seals

Nitrile rubber (NBR) molded o-ring seals for oil-contact sealing, developed around the working environment and assembly.

Product specification

MaterialNitrile rubber (NBR)
Product familyO-Rings
FormMolded O-ring seals
SpecificationMaterial grade, geometry and dimensions selected for the assembly

Material and function

Nitrile rubber is used where contact with mineral oils, lubricants or fuels guides the selection. Acrylonitrile content affects oil resistance and low-temperature flexibility, so the compound should be selected for the operating conditions.

Benefits and options

  • Oil-contact sealing
  • Wear resistance and mechanical strength
  • Solid or selected foam forms

Manufacturing and customization

O-rings are formed and cured from a selected elastomer compound. Dimensions, cross-section, hardness and finishing are selected for the gland, contact medium and assembly.

Design considerations

Select the material grade for contact media, operating temperature and mechanical loading. Include the installed compression, mating surfaces and expected service conditions when reviewing the component. Confirm performance using the selected compound and a representative sample.

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