The sealing principle of the skeleton oil seal: Because there is an oil film controlled by the oil seal edge between the oil seal and the shaft, this oil film has fluid lubrication characteristics.
The transmission parts need to be lubricated parts and output parts isolation, so as not to let the lubricating oil leakage, usually used for rotating shaft, is a kind of rotating shaft lip seal. The skeleton is like the steel bar in the concrete member, which plays a strengthening role and keeps the oil seal in shape and tension.
The rubber ring and metal ring are integrally bonded and vulcanized. It is a sealing ring used to seal thread and flange connections. The ring includes a metal ring and a rubber gasket.
The choice of oil seal should be based on the sealing medium and working conditions. The sealing medium needs to choose the material of the oil seal. The working conditions mainly consider the use pressure, working line speed, and working temperature range.
O-ring is a rubber sealing ring with a circular cross-section. Because its cross-section is O-shaped, it is called O-shaped rubber sealing ring, also called O-ring. It began to appear in the middle of the 19th century, when it was used as a sealing element for steam engine cylinders.
O-ring specifications mainly include UHSO ring specifications, UHPO ring specifications, UNO ring specifications, DHO ring specifications, piston rod O-ring specifications, high temperature O-ring, high pressure O-ring, corrosion-resistant O-ring, wear-resistant O-ring.
O-ring is suitable for installed in a variety of mechanical equipment, in the specified temperature, pressure, and different liquid and gas medium, in the static or motion state from the sealing effect.
The choice of O-ring hardness is more important. Such as a power station pump turbine hardness of 70(Shore) sealing ring, often peeling, or even transverse cut, after the use of 85~90(Shore) sealing ring, the effect is ideal.
Seals are materials or parts that prevent fluid or solid particles from leaking between adjacent mating surfaces and prevent external impurities such as dust and moisture from entering the interior of machine equipment.
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