| 摘要 |
A unitary radial lip seal assembly (20) to provide a fluid tight seal between a shaft (10) and a housing bore (14) through which the shaft (10) extends includes an annular rigid retainer (32), a resilient body portion (30) secured to the retainer (32) and defining at least one sealing lip (44, 46, 48) to seal against the rotatable shaft (10) and a sleeve bearing member (70) supported by said seal assembly outboard of the sealing lip. In one form, the bearing member (70) is rigidly connected to the retainer (32), in another, it is resiliently mounted to provide shaft (10) vibration dampening. In the latter embodiment, the bearing member includes a radial wall urged into frictional engagement with a radial wall of the resilient body to restrict rotation of the bearing member.
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