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O-ring 36x2 NBR70

Code48009751
In stock899pcs
Priceexcl. VATFrom PLN 2.80/pcs
O-ring 36x2 NBR70—
PLN 2.80excl. VAT

Price by quantityexcl. VAT

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Technical data

Properties
Seal typeO-ring
Material typeNBR
Hardness Shore-A70
Norm designDIN3771
BrandKey seal
Weight1g
O-ring dimension
Inside diameter36mm
Cross section2mm

Description

The O-ring 36×2 NBR70 is a sealing ring with a symmetrical circular cross-section, intended for use in technical sealing assemblies. The element is made of acrylonitrile-butadiene rubber (NBR) with a hardness of 70 Shore A, in accordance with the dimensional standard DIN 3771. The profile is a closed, seamless ring. Its sealing action relies on the initial radial or axial deformation of the cross-section (compression) after installation in the groove. The NBR material is classified as an oil-resistant rubber, resistant to mineral oils, greases and mineral-oil-based hydraulic fluids. Technical data and dimensions: Inside diameter (d): 36.0 mm Outside diameter (D): 40.0 mm Cross-section height / thickness (H): 2.0 mm Dimensions in inches (d × D × H): 1.417" × 1.575" × 0.079" Material: NBR (nitrile rubber) Hardness: 70 Shore A Standard: DIN 3771 Brand: Key seal

Material

NBR (nitrile butadiene rubber)

  • Operating temperature-30 °C to +100 °C

Good with oils, fuels, water and compressed air. Not for brake fluid, solvents, strong acids or sunlight.

Chemical resistance
Can be usedDo not use
Mineral oil, grease and hydraulic oil (H, H-L, H-LP)Brake fluid (DOT 3, DOT 4, DOT 5.1): the ring swells quickly
Diesel, fuel oil, keroseneSunlight and open air (ozone): the rubber cracks
Petrol (gasoline), propane, butaneAcetone, MEK, ethyl acetate and similar solvents
Water and water-based liquids, up to +80 °CBenzene, toluene, trichloroethylene (aromatic and chlorinated solvents)
Compressed air, also with oil mistSynthetic ester oils and fire-resistant fluid HFD-R
Water-based fire-resistant hydraulic fluids (HFA, HFB, HFC)Strong (concentrated) acids, e.g. nitric and sulfuric, and strong oxidizers
Oil-and-water emulsionsSteam and hot water above +100 °C
Weak acids, alkalis and salt solutions, at room temperature
Use with cautionPetrol with a lot of bioethanol (E10, E85): better use FKM (Viton)

Shows low compression set within the recommended temperature range.

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