| 摘要 |
{Technical Problem} Provide a bellows seal that prevents damage, due to shrink-fitting, to the stationary seal ring which is positioned on the inner periphery side of the seal cover via a bellows in a manner freely movable in the axial direction, while preventing stress-induced damage to the bellows and improving the sealing performance at the same time. {Solution to Problem} The bellows seal is characterized by having a bellows 11 installed on the inner periphery side of the seal cover 3 between a seal cover 3 and first seal ring 8 in a manner freely extendable/contractible in the axial direction, as well as a spring 13 installed on the inner periphery side of the seal cover 3 to bias the first seal ring 8 in the direction of the second seal ring 9, wherein the first seal ring 8 is hermetically coupled by a lap joint to the end face of a retainer 12 fixed to the bellows 11, and the first seal ring 8 and retainer 12 are installed on the seal cover 3 side in a manner prevented from turning by a knock pin 17. |
