DOUBLE-ROW SELF-ALIGNING ROLLER BEARING AND PROTRUSION PREVENTION JIG

Title:

DOUBLE-ROW SELF-ALIGNING ROLLER BEARING AND PROTRUSION PREVENTION JIG

Document Type and Number:

WIPO Patent Application WO/2018/131617

Kind Code:

A1

Abstract:

This double-row self-aligning roller bearing (1) has rollers (4, 5) interposed in two rows in parallel in the bearing width direction between an inner ring (2) and an outer ring (3). The raceway surface (3a) of the outer ring (3) has a spherical shape. The outer circumferential surface of each of the rollers (4, 5) has a cross-sectional shape conforming to the raceway surface (3a) of the outer ring (3). Either or both of the shapes and contact angles (θ1, θ2) of the rollers (4, 5) differ from each other. Mounting holes (15, 16), in which a protrusion prevention jig (17) can be mounted, are provided in width surfaces (2c, 3b) of at least any one among the inner ring (2) and the outer ring (3). The protrusion prevention jig (17) prevents the width surfaces (2c, 2d) of the inner ring (2) from protruding further in the bearing width direction than the width surfaces (3b, 3c) of the outer ring (3).

Inventors:

SEKO KAZUMASA (JP)
YAMAMOTO TAKASHI (JP)
INOUE YASUYUKI (JP)
HORI MICHIO (JP)

Application Number:

PCT/JP2018/000378

Publication Date:

July 19, 2018

Filing Date:

January 10, 2018

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)

International Classes:

F16C19/38; F16C23/08; F16C33/58; F16C35/06

Domestic Patent References:

WO2005050038A1

2005-06-02

Foreign References:

JP2005207517A	2005-08-04
JP2013044374A	2013-03-04
JP2004245251A	2004-09-02
JP2004108429A	2004-04-08
JP2001065574A	2001-03-16
JP2005061594A	2005-03-10
DE102010054318A1	2012-06-14
US20140112607A1	2014-04-24

Other References: