BALL BEARING - JTEKT CORP

Title:

BALL BEARING

Document Type and Number:

WIPO Patent Application WO/2023/135668

Kind Code:

A1

Abstract:

This ball bearing 10 comprises an inner ring assembly 35 and an outer ring 20. The inner ring assembly 35 includes an inner ring 30, a plurality of first balls 41, a plurality of second balls 42, a first retainer 51, and a second retainer 52. The inner ring 30 has a first inner ring raceway 31 on a first axial side and a second inner ring raceway 32 on a second axial side of the first inner ring raceway 31, the raceway contact diameter of the first inner ring raceway 31 is smaller than the raceway contact diameter of the second inner ring raceway 32, a first minor angle θ1 formed between a first inclined surface 23 and a central axis C2 of the outer ring 20 in a cross-section including the central axis C2 of the outer ring 20 is smaller than a second minor angle θ2 formed between a second inclined surface 24 and the central axis C2 of the outer ring 20 in a cross-section including the central axis C2 of the outer ring 20, and the first minor angle θ1 is 12°C or less.

Inventors:

IWAMOTO KIYOKANE (JP)
KUBOYAMA YUUTA (JP)
ISHII TOMOHIRO (JP)

Application Number:

PCT/JP2022/000646

Publication Date:

July 20, 2023

Filing Date:

January 12, 2022

Export Citation:

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Assignee:

JTEKT CORP (JP)

International Classes:

F16C33/58; F16C43/04

Domestic Patent References:

WO2018224077A1	2018-12-13
WO2011062257A1	2011-05-26
WO2005088144A1	2005-09-22

Foreign References:

US20150071579A1	2015-03-12
JP2014062574A	2014-04-10
JP2008138842A	2008-06-19