| 摘要 |
<p>The invention provides a lip type seal structured such that constructing parts of the lip type seal can be easily separated and sorted by material to enable it to comply with a request on recycle, an assembly retaining characteristic among the constructing parts is good and an installing workability is good. The lip type seal has a first lip seal member (11) provided with a cylinder portion (12) fitted to an inner periphery of a shaft hole (72) of a housing (71) and a first seal lip (14) arranged at a sealed fluid side (A) and brought into pressure contact with a shaft (73), and made of a rubber-like elastic material, a second lip seal member (21) provided with a second seal lip (23) arranged at an atmospheric air side (B) and brought into pressure contact with the shaft (73), and made of a resin, a spacer ring (31) arranged at the sealed fluid side (A) of the second lip seal member (21) and made of a metal, and a retaining ring (41) provided for retaining the spacer ring (31) and the second lip seal member (21) and made of a metal, and these parts are assembled in a non-bond manner, in a state that an outer peripheral surface of the retaining ring (41) comes into contact with and is fitted to an inner peripheral surface of the first lip seal member (11).</p> |
