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Another symptom of a failing rear hub seal is a grinding or whining noise coming from the rear of the car. This noise is caused by lack of lubrication in the axle components, leading to increased friction and wear. If left unattended, this could eventually lead to axle failure and a costly repair.


rear hub seal

rear
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<a href=https://www.hkaiseal.com/products><strong style=font-size:28px><p>Another symptom of a failing rear hub seal is a grinding or whining noise coming from the rear of the car</strong></a>. This noise is caused by lack of lubrication in the axle components, leading to increased friction and wear. If left unattended, this could eventually lead to axle failure and a costly repair.</p><br><a href=https://www.hkaiseal.com/products><strong style=font-size:28px>rear hub seal</strong></a><br><br><img src=https://www.hkaiseal.com/images/7_202406291045253866.webp alt=rear hub seal style=margin:0 auto;display:flex;justify-content:center;width: 50%;height: 50%;><br>
2025-08-15 18:07
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    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.

  •     Silicone. Vinyl-methyl-silicones (VMQs) maintain performance in temperatures from -140° to 392° F. In addition, silicone is resistant to adverse weather conditions, light, and ozone. The healthcare and food industry sectors, as well as pneumatic and hydraulic systems, often use silicone.