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Patent Searching and Data


Title:
BEARING WITH SEAL
Document Type and Number:
WIPO Patent Application WO/2017/169976
Kind Code:
A1
Abstract:
In the present invention multiple protrusions (22) are formed in the shape of circles having mutually different diameters, on the inner side of a seal lip part (10) when a lip front end (14) is taken as a boundary. These protrusions (22) are distributed such that when an annular part (11) of the seal (2) and a seal-mounting part (3) of an outer ring (4) are fitted together, the contact location between the seal (2) and an outer groove wall (19) of a seal groove part (20) of an inner ring (5) is restricted to only the protrusions (22). Thus, when the aforementioned parts are fitted together a gap (21) is formed along the protrusions (22), and the sliding area between the outside groove wall (19) and the seal lip part (10) is reduced.

Inventors:
SASAKI KATSUAKI (JP)
WAKUDA TAKAHIRO (JP)
YAMAGUCHI TOORU (JP)
Application Number:
PCT/JP2017/011204
Publication Date:
October 05, 2017
Filing Date:
March 21, 2017
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/78; F16C19/06; F16C33/80; F16J15/3204; F16J15/3268
Foreign References:
JP2001146923A2001-05-29
JP2010112472A2010-05-20
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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