Design a Face Seal O-Ring in 1 Minute скачать в хорошем качестве

Design a Face Seal O-Ring in 1 Minute

People say it is hard to size O-rings. People are wrong. Fundamentally O-rings seal when compressed ~10-30% (exact numbers vary, sometimes people claim 15-40%). Practically, your groove depth and O-ring has a finite tolerances. The tolerances size the O-ring diameter (D = total tol range/ total compression range). The nominal groove depth is set in the middle of the tolerance band at 20% compression. H = 0.8*D. It is common to give O-rings a 75% fill factor in the groove so they don't move too much or extrude outwards and get pinched. We quickly approximate the groove width needed as 1.33*D. This video is to show that O-ring groove geometry is fundamentally based on height tolerancing. Truthfully you should not size an O-ring in 1 minute. There are many more details to capture such as CTE, stiffness, chemical compatibility, O-ring ID/OD, static vs dynamic seals, face vs radial seals, surface finish, adsorption and effusion and more. Please go read the Parker O-ring Handbook. https://www.parker.com/content/dam/Pa...