Xiamen Seals Technology Co.,Ltd
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Xiamen Seals Technology Co.,Ltd
Address: Unit233, No.273, Lingxia North RD, Huli High technology District, Xiamen, China
Tel: +86-592-5775761
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NBR Oring

Nitrile Metric Orings

Nitrile Metric Orings

Nitrile Metric Orings, 85 Durometer Nitrile O-rings Typical uses include anti-vibration mounts, drive couplings, tires, springs, bearings, rubber bands, and adhesives. The typical working temperature range is -50°C to +100°C....
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Nitrile Metric Orings

Theory and Design

O Ring mounting for an ultra-high vacuum application . Pressure distribution within the cross-section of the O Ring. The red lines are hard surfaces, which apply high pressure. The fluid in the seams has lower pressure. The soft O Ring bridges the pressure over the seams. Orings are one of the most common yet important elements of machine design. They are available in various metric and standard sizes. The UK standards sizes are known as BS Sizes and typically range from BS001 to BS932. The most common standard sizes in the US are controlled by SAE AS568. In general orings are specified by the inside diameter and the cross section diameter (thickness). The O Ring is one of the simplest, yet most engineered, precise, and useful seal designs ever developed.


Typical Applications

Successful o-ring joint design requires a rigid mechanical mounting that applies a predictable deformation to the o ring. This introduces a calculated mechanical stress at the o ring contacting surfaces. As long as the pressure of the fluid being contained does not exceed the contact stress of the o ring, leaking cannot occur.

High temperature applications

In some high temperature applications, it may need to be mounted in a tangentially compressed state to compensate for the Gow-Joule effect.

The typical working temperature range is -50°C to +100°C.