What is an O-ring?

What is an O-ring?
O-ring, (also known as O-ring, O-ring, O-ring) is a ring-shaped mechanical gasket. It is a ring-shaped elastomer with a circular cross-section and is generally fixed in a groove In the assembly process, it will be compressed by two or more components, thus creating a sealed interface. Because of its low price, simple manufacturing, reliable function, and simple installation requirements, O-rings are the most common mechanical design for sealing. Can withstand dozens of Pascals (thousand pounds) of pressure. O-rings can be used in static applications as well as in dynamic applications where there is relative movement between components, such as the shaft of a rotary pump and the piston of a hydraulic cylinder.