ROLLING BEARING

Title:

ROLLING BEARING

Document Type and Number:

WIPO Patent Application WO/2021/182637

Kind Code:

A1

Abstract:

This rolling bearing (10) comprises: an outer race (11) having an outer raceway surface (11a) on the inner peripheral surface thereof; an inner race (12) having an inner raceway surface (12a) on the outer peripheral surface thereof; a plurality of rolling elements (13) disposed so as to be capable of rolling between the outer raceway surface (11a) and the inner raceway surface (12a); and a seal member (20) which is fixed by a retaining ring (30) to a seal mounting groove (15) formed in an axial-direction end of the outer race (11), and seals an axial-direction end of a bearing internal space (10a) between the outer race (11) and the inner race (12). The seal member (20) has a protrusion (21a) on a radial-direction outer end thereof, the outer diameter of the seal member (20) is greater than the outer diameter of the retaining ring (30) in the seal mounting groove (15), and the radial-direction outer end of the seal member (20) is interposed between the inner peripheral surface of the seal mounting groove (15) and the outer peripheral surface (30a) of the retaining ring (30).

Inventors:

OYAMA TAKUYA (JP)
SUZUKI HIRONORI (JP)

Application Number:

PCT/JP2021/010228

Publication Date:

September 16, 2021

Filing Date:

March 12, 2021

Export Citation:

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Assignee:

NSK LTD (JP)

International Classes:

F16C19/06; A61C1/05; A61C1/08; F16C33/78; F16J15/3204; F16J15/3268

Foreign References:

JP2017211076A	2017-11-30
JP2007333142A	2007-12-27
JPH02135369U	1990-11-09
JP2003240000A	2003-08-27
JP2017211076A	2017-11-30
JP2020042731A	2020-03-19
JP2021017471A	2021-02-15

Other References: