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High pressure oil seal 28,6x39x4,9 NBR [633B0361]

Code48000216
In stock29pcs
Priceexcl. VATFrom €58.67/pcs
High pressure oil seal 28,6x39x4,9 NBR [633B0361]—
€58.67excl. VAT

Technical data

Properties
Seal type633B0361
Material typeNBR
BrandDanfoss
Weight5g
Rotary seal dimension
Shaft Diameter28,6mm
Housing diameter39mm
Width 14,9mm

Description

Shaft Seal (Simmering) for Sauer Danfoss Hydraulic Motor 28.6×39×4.9 NBR – Code: 633B0361 This shaft seal, measuring 28.6 × 39 × 4.9 mm and made from high-quality NBR (nitrile rubber), is designed for use in Sauer Danfoss hydraulic motors. It is compatible with motor series OMP, OMR, and OMPW. The simmering plays a critical role in sealing the rotating shaft of the hydraulic motor, preventing hydraulic oil leaks and protecting the internal components from contamination. The NBR material offers excellent resistance to hydraulic oils, greases, and moderate operating temperatures, making this seal a reliable choice for demanding conditions. Thanks to precise manufacturing and adherence to original technical specifications, seal 633B0361 ensures long service life and safe operation of hydraulic motors.

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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