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Design and characteristics of o ring

Update:2018-06-14

First,o ring is a sealing element with a circular cross-sectional shape. It is widely used in many kinds of mechanical equipment and functions as a seal in a certain temperature, pressure, and different liquid or gas media. Compared with the sealing ring, it has the following superior performance:

1 The sealing structure is simple, the installation site is compact, and the weight is lighter.

2 Self-sealing effect, often only one seal can be used to complete the sealing effect

3 The sealing performance is good, and there is almost no leakage when used as a fixed seal. When used as a movement seal, it is only leaked when the speed is high.

4 The frictional resistance of the movement is very small, and it can also be adapted to the occasion where the pressure alternates.

5 Sizes and grooves have been standardized, the cost are low, products are readily available, easy to use and outsourced

Second, compared with other seals, there are also the following three problems:

1 Large frictional resistance at starting

2 When used as a pneumatic seal, it must be lubricated to prevent wear

3 pairs of coupling parts, such as the moving surface, grooves, gaps and other processing dimensions and precision requirements are strict