The O-ring is one of the important and simplest types of seals used in various dynamic, as well as static applications. It basically comprises of a cross-section, which is designed into a groove. This cross section provides an initial compression. The force needed to compress the seal is produced by the cross-section diameter, and the durometer. The sealing compression is affected by the stretch. This compression also affects the sealing potential of this seal. An O-ring is described as a static or a dynamic seal, depending on the direction of the squeeze applied to its cross section. This post discusses static and dynamic types in detail.
An Introduction to Static Seals
Static seals are categorized on the basis of squeeze, which is applied on the cross section of the O-ring.
Know about Different Types of Static Seals
Static seals are mainly classified as:
Basic Information on Dynamic Seals
The seals used in rotating, reciprocating, or oscillating motion are known as dynamic seals. Performance of these seals is affected by various variables. These variables may include pressure of the system, surface finish of metal parts, O-ring stretch, and squeeze, etc. As, many of these variables are related to each other, thus they are considered important in dynamic sealing conditions.
Know About Dynamic Seals and Their Applications
The following are different types of dynamic seals:
The O-rings act as rotary seals under appropriate conditions. Appropriate hardware configuration, durometer, and feet-per-minute values are important for a proper sealing. To ensure a proper working of these seals, it is important that you source them from a reliable manufacturer. SSP Manufacturing, Inc. is a manufacturer of several static and dynamic O-ring seals. The company provides them in various specifications.
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