| 摘要 |
PURPOSE: A seal chain is provided to ensure improved sealability against the deviation of a sealing mechanism in the radial direction and to maintain the sealing performance for a long time even if using high-fluidity lubricant. CONSTITUTION: A seal chain comprises a steel ring(131) which is fit and fixed to the end of a bush, a seal receiving ring(133) which is arranged on the peripheral side of the steel ring, allowed to move in the diameter direction, and mounted with a radial seal(134) on the side close to an outer link plate(121), a bellows seal(132) which is installed lengthwise between the steel ring and the seal receiving ring and allowed to transform in the diameter direction, and a seal ring(135) which is provided concentrically with a pin(122), corresponding to the radial seal, on the side of the outer link plate facing an inner link plate(111).
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