Sealing ring for e.g. allowing passage of cable between sheet metal and closure elements in motor vehicle, has outer face contacted with tube joint, and possessing sufficient radius of curvature for assuring sealing between ring and joint

摘要

The ring (10) has an outer face contacted with a tube joint (50) provided on a periphery of a closure element (40), and possessing sufficient radius of curvature for assuring sealing between the ring and the joint of the closure element, where the ring is made of elastomer. The radius of curvature of the outer face is greater than or equal to 200 nm. An inner face has shape adapted to a hollow cup package (32) of a sheet metal element (30) for assuring sealing between the ring and the sheet metal element.