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Characteristics and functions of O-rings

2022-06-25
The O-ring is a kind of rubber ring with a circular cross-section. Because its cross-section is O-shaped, it is called an O-ring. It is the most widely used one in hydraulic and pneumatic transmission systems.
O-rings are annular rubber seals with a circular cross-section, which are mainly used for mechanical parts to prevent leakage of liquid and gaseous media under static conditions. In some cases, the O-ring can also be used as a dynamic sealing element for axial reciprocating motion and low-speed rotary motion. According to different conditions, different materials can be selected to suit it.
O-rings are usually selected to use large-section O-rings as much as possible. Under the same gap, the volume of the O-rings squeezed into the gap should be less than the maximum allowable value.
O-ring seals are the most common form of sealing used in fluid power systems. They work well in many fluid power systems, but must be cautious and careful in their action. O-rings only work when they are deformed. The O-ring is shaped like an O-ring, it is installed in the sealing groove and then pressed so that there is no gap in the sealing groove, thereby sealing the flow of liquid or air. Although this simple sealing structure works well in fluid power systems, it can only be achieved with careful design, careful selection, and proper installation.



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