Hydraulic Seals and Oil Seals and Their Use
Hydraulic seals are typically made from elastomers, natural and synthetic polymers that have weak molecular attraction and high elastic properties. The two primary sources of hydraulic seals are rubber and plastics (including PTFE, such as Teflon and polyurethane). Other elastomeric materials used to make seals include butadiene, nitrile, butyl and silicone resins. Seals can also be made from non-elastomeric materials, such as felt and leather. Some specific types of hydraulic seals, such as bonded seals, are made from metallic materials including brass, bronze, aluminum, carbon steel and stainless steel. The bond between the rubber material of the bonded seal and the metal is created by chemical bonding. Main types Hydraulic seals are most commonly found in hydraulic cylinders, mechanical actuators that convert hydraulic pressure (from oil, water or other pressurized fluids) into unidirectional force for use in agricultural and forestry vehicles, construction equipment and similar mec