Title:
SEALING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/035429
Kind Code:
A1
Abstract:
Provided is a sealing device with which the amount of grease applied to the inner peripheral surface of both a main lip and an auxiliary lip can be made uniform in the circumferential direction. A sealing device 10 comprises a main lip 122 that can freely slide relative to a shaft, an auxiliary lip 221 that is provided more toward the side of a fluid to be sealed than the main lip 122, and that can freely slide relative to the shaft, and a grease G that is applied to the inner peripheral surface of both the main lip 122 and the auxiliary lip 221, wherein the sealing device is characterized by comprising an auxiliary lip-side annular projection 222 that extends from the auxiliary lip 221 side toward the main lip 122 side up to a position at which the projection does not contact the main lip 122, and that restricts the grease G from penetrating to the outside in the radial direction.
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Inventors:
AIHARA TAKAYUKI (JP)
Application Number:
PCT/JP2018/030121
Publication Date:
February 21, 2019
Filing Date:
August 10, 2018
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
F16J15/3232; F16J15/3256
Foreign References:
| JPH1073165A | 1998-03-17 | |||
| JPH0354349U | 1991-05-27 | |||
| JPH0756598Y2 | 1995-12-25 |
Other References:
See also references of EP 3670976A4
Attorney, Agent or Firm:
NAKAMURA, Go et al. (JP)
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