2.090" ID x 0.118" CS O'Ring EPDM
70 DURO Black EPDM
-40° to +212° F
Need an o-ring size that isn?t listed? Custom orders are available and can be shipped in as little as two business days! Minimum quantity and pricing for custom orders vary depending on the size(s) ordered. First class shipping is typically around $5.00 per size but does not qualify for shipping discounts on combined orders. Send us a message with the size you need, and we will calculate the price, lead time, shipping, and create a custom listing just for you!
What is an O-ring?
An O-ring, or torus, is a doughnut-shaped object or mechanical gasket generally made from an elastomer. O-rings can also be made from PTFE, other plastic materials, metals, and be made hollow or solid. O-rings often have a round cross-section.
What Do O-rings Do?
An o-ring?s primary use is for sealing. They are designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.
O-ring?s are often used in static (non-moving) applications but are also found in dynamic (moving) applications where there is relative motion between the parts and the o-ring itself.
Dynamic (moving) use examples include: rotating pump shafts and hydraulic cylinder pistons.
Examples of static (non-moving) include: fluid or gas sealing applications in which the o-ring is compressed, resulting in zero clearance.
Some o-rings are made with lobed (x-like) cross-sections to work in both static and dynamic applications.
There are around 20 different types of o-rings available to cover these multiple uses. The common round cross-section is the most versatile. This conventional o-ring can be used in almost any application as long as the gland to contain the o-ring is designed correctly and correct size and material are chosen.
EPDM stands for Ethylene Propylene Diene Monomer.
It is a synthetic rubber used most commonly in the automotive and construction industries for its excellent resistance to environmental factors such as Ozone, UV, and general weathering. It maintains its durability at low and and moderate temperatures. It handles outdoor settings well and can dampen noise, two of the main reasons it is commonly used in the automotive industry.
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