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2025-08-16 05:30
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    Another significant benefit of metric shaft seals is their versatilitymetric shaft seals. These seals can be customized to fit a wide range of shaft diameters and speeds, making them suitable for use in a variety of applications across different industries. Whether you're working with pumps, turbines, compressors, or any other type of rotating machinery, there's a metric shaft seal that can meet your specific needs.

    Operating temperatures for engine oil seals (see Fig. 14.11 and cross-section of lip seal with garter spring in Fig. 14.22) vary widely, depending on engine design and location within the engine. Typically, the rear crankshaft seal is subjected to much higher temperatures than the front seal. Oil sump temperatures vary considerably, depending on provisions for oil cooling. This allows use of hydrogenated nitrile (HNBR), silicone, or acrylic elastomers for some seals in relatively low-temperature environments (120–140°C or 250–284°F). Standard fluoroelastomers (FKM), bisphenol-cured VDF/HFP/TFE terpolymers with 68–69% fluorine content, perform well in oil service up to about 160°C (320°F). More resistant fluoroelastomers are necessary for reliable long-term performance in more severe environments.