Seal arrangement and hinge of a chain with the seal arrangement

摘要

A sealing arrangement used to create a seal between a first part of a chain and a second part of the chain, wherein the second part can at least be pivoted in relation to the first part, includes a sealing ring with an annular sealing lip for sealing a lubricant area between parts which can be pivoted towards each other, and an elastic ring which is adapted to be fixed to one of the parts and which is adapted to exert pressure in the sealing ring. In addition, a supporting ring is arranged between the sealing ring and the elastic ring.

主权项

1. A seal arrangement providing a seal between a first part of a chain and a second part of the chain which is at least pivotable relative to the first part of the chain about an axis, comprising:
an L-shaped sealing ring positioned between the first and second parts, the sealing ring comprising an annular sealing lip for sealing a lubricant space between the first part and the second part which is at least pivotable relative to the first part, the sealing ring including an axially-extending portion with a radially outwardly facing surface; an elastic ring securely adjoining the first part or the second part and applying pressure to the sealing ring, the elastic ring including a radially inwardly facing surface facing radially toward the radially outwardly facing surface; and a support ring configured to be in physical contact with the sealing ring and the elastic ring, the support ring including an axially extending section stiffer than both the sealing ring and the elastic ring and located radially between the radially outwardly facing surface of the axially-extending portion of the sealing ring and the radially inwardly facing surface of the elastic ring for preventing a direct radial pressing of the elastic ring on the sealing ring, the support ring including a radially innermost surface in physical contact with the radially outwardly facing surface of the axially-extending portion of the sealing ring and wherein an entirety of a radially outermost surface of the support ring is in physical contact with the radially inwardly facing surface of the elastic ring.