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1. (WO2017038751) SEALING DEVICE

Pub. No.:    WO/2017/038751    International Application No.:    PCT/JP2016/075165
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Aug 30 01:59:59 CEST 2016
IPC: F16J 15/447
F16C 19/18
F16C 33/78
F16C 33/80
F16C 41/00
F16J 15/3232
Applicants: NOK CORPORATION
NOK株式会社
Inventors: KATO Takuya
加藤 拓也
Title: SEALING DEVICE
Abstract:
Provided is a sealing device configured so that the function of preventing the entry of foreign matter can be improved while an increase in generated torque resistance is avoided. A sealing device (1) is provided with: a sealing device body (10) mounted to the outer ring (51) of a hub bearing (50); and a slinger (20) mounted to a hub (52). The sealing device body (10) is provided with a reinforcement ring (12) and an elastic body (11). The elastic body (11) is provided with: seal lips (16, 17) in contact with the slinger (20); and a labyrinth lip (15) which forms a gap (18) relative to the slinger. The slinger (20) is provided with a slinger circular cylinder section (21), a slinger flange section (22), a slinger bend section (23), and a slinger extension section (24). The slinger bend section (23) and the slinger extension section (24), in cooperation with the elastic body (11) and the outer ring (51), form a labyrinth seal L1 having gaps (31-34).