O-rings, custom-made, are available in standard cross-sections to any length or ID. We stock a full line in various durometers and colors. Available in inch or metric sizes.
O-ring Characteristics
An early and prominent user of O-rings cites characteristics of O-ring seals of interest to designers.* Extracts of the more general characteristics are listed:
A. The seals can be made perfectly leak-proof for cases of static pistons and cylinders for fluid pressures up to 5000 psi. (limit of test pressure). The pressure may be constant or variable.
B. The seals can be made to seal satisfactorily between reciprocating pistons and cylinders at any fluid pressure up to 5000 psis. There may be slight running leakage (a few drops per hundred strokes) depending on the film-forming ability of the hydraulic medium. O-Ring can be used between rotating members with similar results but in all cases the surface rubbing speed must be kept low.
(continued)
Materials include:
• Viton®, Buna-N, Kalrez, Aegis, Silicone, Chemraz, EPDM, Fluorosilicone, PTFE, Neoprene
Types of seals:
• orings
• Metrics
• Back-ups
• Quad Rings
• Square-Cut
• Spliced
 • Custom orings
• Mil-Spec
• oring Kits
• oring Cord
• Teflon Encapsulated
O-rings Description | Characteristics continued | Limitations
*Viton is a registered Trademark of DuPont Dow Elastomers
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