Sealing device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 31, 2004
Grant Date -
Jun 5, 2003
app pub date -
Oct 23, 2002
filing date -
Mar 13, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seal device (31) for a bearing system (21) is constituted by first and second seal rings (32) and (35). The first seal ring (32) is constituted by a lip seal (33) having a lip portion (33B) in sliding contact with an end face (23B) of a bush (23) which is fitted on a joint shaft (26), and a slide tube (34) having a seal surface (34C) on an end face at an axial end away from the lip portion (33B) which is formed integrally with a tubular body portion (33A) of the lip seal (33). The second seal ring (35) is fixedly fitted in a boss (22) radially on the outer side of the first seal ring (32), and provided with a seal surface (35D) on the inner side of an annular inward collar portion (35C) for sliding contact with the seal surface (34C) of the slide tube (34).
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