What Is An O-ring And O-ring Application?

Thu February 22, 2024


What is an O-ring?

The O-ring is a rubber seal with a prototype cross-section. Because its cross-section is O-shaped, it is called an O-ring. It can also be called an O-type rubber seal (circular rubber seal). It was first used in steam engine cylinder seals in the mid-19th century.

Because it is simple to manufacture, cheap, and has simple installation requirements, it is most commonly used for mechanical seals. It can be used for static seals or seals under moving conditions.


O-ring application range

An O-ring is a mechanical seal widely used in a variety of industries and applications. It is a circular ring made of elastic material that is used to compress between two surfaces to achieve a seal and prevent the leakage of gas or liquid. O-rings are an essential component of many machines and equipment as they provide a reliable, cost-effective sealing solution.

It plays a sealing role in static or moving conditions under specified temperatures, pressures, and different liquid and gas media. Various types of O are widely used in engineering machinery, construction machinery, mining machinery, machine tools, agricultural machinery, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, petroleum machinery, plastic machinery, and various types of instruments. Ring sealing element.

O-rings are mainly used for static sealing and reciprocating sealing. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. O-rings are generally installed in grooves with a rectangular cross-section on the outer or inner circle for sealing purposes.

The O-ring seal still plays a good sealing and shock-absorbing role in environments such as oil, acid, alkali, abrasion, and chemical erosion.

Therefore, O-rings are the most widely used seals in hydraulic and pneumatic transmission systems.

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