SEALING DEVICE - NOK CORP

Title:

SEALING DEVICE

Document Type and Number:

WIPO Patent Application WO/2007/122919

Kind Code:

A1

Abstract:

A sealing device having a stationary-side installation ring (11) tightly fitted into and fixed to an outer peripheral stationary-side member (201), a rotation-side installation ring (12) tightly fitted into and fixed to an inner peripheral rotation-side member (202), a stationary-side lip (13) provided on the stationary-side installation ring (11) and whose forward end is made to be slidably in intimate contact with the rotation-side installation ring (12), rotation-side lips (14, 15) formed integrally with the rotation-side installation ring (12) and slidably in intimate contact with the stationary-side installation ring (11), and a pulser ring (17) formed of a synthetic resin or rubber-like elastic material mixed with magnetic powder, formed integrally with the rotation-side installation ring (12), and magnetized in multiple poles. On the outer periphery of the pulser ring (17) is extended a flange (17a) positioned on the outer side of the rotation-side lips (14, 15) and closely facing the stationary-side member (201) or the stationary-side installation ring (11). The sealing device with the pulser ring (17) has excellent sealing ability.

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Inventors:

KOBAYASHI NAOTO (JP)

Application Number:

PCT/JP2007/055174

Publication Date:

November 01, 2007

Filing Date:

March 15, 2007

Export Citation:

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Assignee:

NOK CORP (JP)
KOBAYASHI NAOTO (JP)

International Classes:

F16C33/78; F16C33/80; F16C41/00; F16J15/3232; F16J15/326

Foreign References:

JP2003294048A	2003-10-15
JP2001355742A	2001-12-26
JP2006064180A	2006-03-09
JP2002340921A	2002-11-27
JPH11218542A	1999-08-10
JP2004011827A	2004-01-15
JP2004093554A	2004-03-25

Other References: