Title:
SEALING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/070592
Kind Code:
A1
Abstract:
The present invention improves sealing performance while suppressing temperature and pressure increases in an internal space of a bearing. This sealing device (1) comprises an annular outer circumferential member (10) attached to an outer race, and an annular inner circumferential member (20) attached to an inner race. The outer circumferential member (10) has an outer circumference-facing surface (30) that is an annular surface around an axis (x) and that extends along the axis (x). The inner circumferential member (20) has an inner circumference-facing surface (40) that is an annular surface around the axis (x) and that extends along the axis (x). The outer circumference-facing surface (30) and the inner circumference-facing surface (40) are disposed such that the inner circumference-facing surface (40) faces the outer circumference-facing surface (30) from the inner circumference side and forms an annular space (g) therebetween. The inner circumference-facing surface (40) has a plurality of inner circumference-side protrusions (50) that protrude from the inner circumference-facing surface (40) towards the outer circumference side and extend along the axis (x).
Inventors:
NOMURA RYOSUKE (JP)
Application Number:
PCT/JP2021/028598
Publication Date:
April 07, 2022
Filing Date:
August 02, 2021
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
F16C33/80; F16J15/3204; F16J15/447
Domestic Patent References:
| WO2008018765A1 | 2008-02-14 |
Foreign References:
| JPH02150576A | 1990-06-08 | |||
| JP2013217455A | 2013-10-24 | |||
| JP2006132684A | 2006-05-25 | |||
| JP2020085074A | 2020-06-04 | |||
| JP2003172367A | 2003-06-20 | |||
| JP2008232301A | 2008-10-02 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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