Sealing device with rotation detecting element

Details Sealing device with rotation detecting element Sealing device with rotation detecting element

2005-03-22

2008-12-16

Pickard, Alison K (Department: 3676)

Seal for a joint or juncture

Seal combined with indicator, sampler, or inspection feature

C277S349000, C277S562000, C277S571000, C277S572000, C384S448000

Reexamination Certificate

active

07464939

ABSTRACT:
A sealing device with a rotation detecting element, capable of detecting rotation even when fluid such as engine oil is an object to be sealed, comprises a stationary side sealing element (seal ring) (12) fixed to the stationary side (3), a rotation side sealing element (slinger) (14) installed on the rotation side (2) and made to be in slidably and hermetically contact with the stationary side sealing element (12), and a to-be-detected disc (15) for rotation detection attached to the rotation side (2) and positioned at the atmosphere side from a sealing and sliding section (S) between the stationary side sealing element (12) and the rotation side sealing element (14), wherein the outer peripheral edge of the to-be-detected disc (15) closely faces in the radial direction the stationary side sealing element (12) side.

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