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Patent Searching and Data


Title:
ROLLING BEARING AND METHOD FOR DESIGNING SAME
Document Type and Number:
WIPO Patent Application WO/2019/138938
Kind Code:
A1
Abstract:
This rolling bearing is equipped with a sealing member (26) covering a bearing interior space G and has an inner ring (22) that comprises an outside outer radial surface (22f) and a stepped wall surface (22d). The sealing member (26) includes: a waist (29) that is elastically deformable so as to tilt in an axial direction; a first lip (31) that protrudes out to the inside of the axial direction from an inner diameter margin of the waist (29), a distal end (31r) being in contact with the stepped wall surface (22d) with an interference C, thus constituting a gap (D1) with the outside outer radial surface (22f) on the other side; and a second lip (32) protruding out to the outside of the axial direction from the inner diameter margin of the waist (29), thus constituting a gap (D2) with the outside outer radial surface (22f).The sealing member is structured such that the angle of tilt of the waist (29) changes depending on the interference C. The interference C has a tolerance, and the size of the gap (D1) is equal to the size of the gap (D2) in a middle range of the tolerance.

Inventors:
KAWAGUCHI HAYATO (JP)
Application Number:
PCT/JP2018/048475
Publication Date:
July 18, 2019
Filing Date:
December 28, 2018
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/06; F16C33/78
Foreign References:
JP2004346979A2004-12-09
JP2005299716A2005-10-27
JP2009115283A2009-05-28
Attorney, Agent or Firm:
IMY INTERNATIONAL PATENT OFFICE, P.C. (JP)
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