Title:
BALL BEARING
Document Type and Number:
WIPO Patent Application WO/2023/135667
Kind Code:
A1
Abstract:
A ball bearing (10) in which, in a cross section including a center axis (C2), a first inferior angle (θ1) formed by a first inclined surface (23) and the center axis (C2) is smaller than a second inferior angle (θ2) formed by a second inclined surface (24) and the center axis (C2) and, in a cross section including a center axis (C1), when a second large circle (BC2) on a second side in the radial direction is a first end point (a, c), an intersection between a first straight line (L1) passing through a first large circle (BC1) on the first side in the radial direction and the second large circle (BC2) on the second side in the radial direction and a surface of a first imaginary torus (T1) on a first side in the radial direction is a second end point (b),the first inclined surface (23) on the first side in the radial direction closest to a second side in the axial direction is a third end point (d), and a point that is on the first inclined surface (23) on the first side in the radial direction and has the shortest distance from the first end point (a) is a fourth end point (e), the length of a first line segment (ab) is longer than the length of a second line segment (cd) or the length of the first line segment (ab) is shorter than the length of a second line segment (cd) and the length of the first line segment (ab) is shorter than the length of a third line segment (ce).
Inventors:
IWAMOTO KIYOKANE (JP)
KUBOYAMA YUUTA (JP)
ISHII TOMOHIRO (JP)
KUBOYAMA YUUTA (JP)
ISHII TOMOHIRO (JP)
Application Number:
PCT/JP2022/000639
Publication Date:
July 20, 2023
Filing Date:
January 12, 2022
Export Citation:
Assignee:
JTEKT CORP (JP)
International Classes:
F16C19/18; F16C33/32; F16C33/58; F16C43/04
Foreign References:
| JP2014040870A | 2014-03-06 | |||
| JP2007278324A | 2007-10-25 | |||
| KR20170131975A | 2017-12-01 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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