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Oil seals can be made from various materials, including rubber, silicone, and polyurethane. The choice of material often depends on the operating conditions such as temperature, pressure, and the type of lubricant being used. For the 50x65x8 oil seal, nitrile rubber (NBR) is commonly utilized due to its excellent oil resistance and durability in a range of temperatures.
50x65x8 oil seal

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In addition to protecting the cylinder from contaminants, dust seals also help maintain the proper lubrication levels within the system. When dust and dirt particles enter the cylinder, they can mix with the hydraulic fluid and create abrasive sludge. This not only increases friction within the cylinder but also reduces the effectiveness of the lubrication, leading to increased wear on the moving parts. By keeping out contaminants, dust seals help ensure that the hydraulic system operates smoothly and efficiently.
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The design of PU oil seals also plays a significant role in their functionality
pu oil seal. They often feature a-like structure that creates a tight seal against the mating surface, preventing the leakage of oil or other fluids. This design, combined with the elastic memory of polyurethane, allows the seal to recover its original shape after compression, maintaining a consistent seal even under fluctuating pressures.
