joint torique
Sign in to saveAlso known as O ring, packing, toric joint, sealing ring
thumb|right|250px|Typical O-ring and application An O-ring, also known as a packing or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, forming a seal at the interface.
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Un joint torique est un joint en forme de tore. Ils sont généralement utilisés pour assurer l'étanchéité. Il existe trois standards de dureté Shore : 70 Shore A, 80 Shore A et 90 Shore A. La compression d'un joint torique après montage ne doit pas dépasser 20 %.[réf. souhaitée] Dans le matériel hydromécanique, c'est le principal dispositif d'étanchéité.
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