Hydraulic seals are designed for the reciprocating motion that is common in hydraulic applications, such as cylinders. Hydraulic seals are designed for high-pressure dynamic applications such as hydraulic cylinders. A typical Hydraulic seal consists of an integral PTFE ring and elastomer ring, providing the properties of an elastomeric ring with a rigid, low friction (PTFE) working face. Hydraulic seals can have a variety of different cross sections. Hydraulic seals include shaft outer diameter or seal inner diameter, housing bore diameter or seal outer diameter, axial cross section or thickness, and radial cross section. Common features for hydraulic seals include spring loaded, integral wiper, and split seal.

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