Oil seal A 25x40x7 NBR SOG/TW, LANCIA 84173294, MERCEDES-BENZ 0019978746,0049976247, PIAGGIO 128217
Oil seal type A (103), without dust lip and with spring.
Material: nitrile rubber (NBR).
The nitrile rubber may vary in color from the one shown in the picture, without this affecting the sealing properties of the oil seal.
Manufacturer: SO GIANT OIL SEAL INDUSTRIAL CO., LTD
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Rubber properties - Acrylnitrile-butadiene rubber (NBR):
Standard color: black
NBR rubber demonstrates excellent resistance to the effects of mineral oils. It also provides particularly good results with hydraulic oils, grease, diesel fuels plus other aliphatic hydrocarbons, diluted acids and alkaline solutions that do not contain aromatic or chlorinated additives. Its excellent mechanical properties, such as high resistance to pressure and abrasion, high stability and good temperature resistance (-20°С to +120 °С), ensure a wide application range for this rubber.
- good oil and fuel resistance (especially to hydraulic oils)
- good working temperature range: -20°С to +120 °С in oil
- good resistance to pressure
- good wear resistance and high tensile strength
- low swelling in water
- poor weather, light and ozone resistance
- poor resistance to polar fluids
- poor resistance to chlorinated hydrocarbons
- poor resistance to aromatic fluids