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    SAINT-GOBAIN
    Logo Saint-Gobain AUTOMOTIVE POLYMER SOLUTIONS
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    3. HIGH SPEED LIP SEAL

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    HIGH SPEED LIP SEAL

     

    Reliability at high speeds

    Electric Drive Unit applications work at increasingly high rotational speeds of >30 m/s and very high friction induced heat is created on top of the normal  application temperatures. Due to excellent temperature resistance of Rulon® compounds, our High Speed Lip Seals works reliably up to >100 m/s at temperatures  from -40°C to 260°C, which far exceed the application temperature of -40°C  to +160°C of the Electric Drive Unit.

    Excellent bi-directional sealing

    An optimal contact of the lip seal and the shaft surface at high speeds is ensured by the flexibility of the material and a design element leading to reliable sealing in forward and reverse direction with zero leakage in both motions. A special feature inside the metal housing compensates for thermal expansion and dynamic forces, preventing possible leakage paths.

    Lifetime durability

    The material properties of Rulon® ensure a long lifetime performance with no aging or degradation. Chemical inertness allows the use in different formulations of oils, water and glycol, furthermore wear resistance leads to stable performance over lifetime of the Electric Drive Unit.

    Test Type Details Results
    High Speed Test 1000 hours @ 17K RPM Zero Leakage
    Reverse Test 100 minutes @ 5K RPM (after 500- hours high speed test) Zero Leakage
    Oil Soak Test ATF and EV gearbox lubricant No Swelling, Absorption or Reaction
    Material PTFE lip Sealing System Seal Housing Over 70 formulations Aluminum or Steet, various Coatings
    Operating Conditions Temperature -50 to +200 C
      Pressure 0 to 0.1 MPa
      Speed Up to 100 m/s
      Max. PV 1 MPa m/s
    Available Sizes Shaft Size 3.0mm to 200mm
      Minimum Bore Depth 8.0 mm

    New requirements of Electric Drive Unit


     

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    About Saint-Gobain

    Saint-Gobain designs, manufactures and distributes materials and solutions for the construction, mobility, healthcare and other industrial application markets; they can be found everywhere in our living places and daily life, providing wellbeing, performance and safety. 

    Saint-Gobain Seals' polymer and metal seals solutions and components are used globally in critical systems that "move" us every day and into the future: automotive, commercial vehicles, life science, industrial and any other markets, where the safety of the human being is in the focus of the application.

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