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Sealing edge This refers to the component of the oil seal that makes contact with the shaft.
It is wedge-shaped to be pressed against the shaft surface and makes contact with the shaft to ensure sufficient sealing performance and suitability for operation at high peripheral speed.- A PCV valve cover gasket is essentially a seal that sits between the engine's crankcase and the PCV valve cover. Its primary function is to prevent oil leaks from the crankcase, ensuring that oil stays where it should be - lubricating the engine's moving parts, rather than escaping into the atmosphere. It also seals the vacuum created by the PCV valve, allowing for the controlled release of gases back into the intake manifold for re-burning, thereby reducing emissions.
- One of the key advantages of a thin rubber gasket is its flexibility and ability to conform to irregular surfaces, making it an ideal choice for sealing joints and connections. Its thin profile allows for a tight seal without adding bulk or interfering with the overall design of the equipment. This ensures that the gasket can effectively prevent the leakage of fluids, gases, or debris, even in high-pressure or high-temperature environments.


Sealing principle: Since there is an oil film controlled by the oil seal edge between the oil seal and the shaft, the oil film has fluid lubrication characteristics.