ROLLING BEARING AND CAGE FOR ROLLING BEARING

WIPO Patent Application WO/2023/181352

A1

This rolling bearing comprises: an inner ring (11) that has, on the outer periphery, an inner ring raceway (21) and a shoulder (25) adjacent to one side of the inner ring raceway (21) in the axial direction; an outer ring (12) that has an outer ring raceway (22) on the inner periphery; a plurality of rolling elements (13) provided between the inner ring raceway (21) and the outer ring raceway (22); and an annular cage (14) that holds the plurality of rolling elements (13) spaced circumferentially. The cage (14) has: an annular body (31) that is located further toward the one side in the axial direction than the rolling elements (13); a plurality of prongs (32) that extend to the other side in the axial direction from the annular body (31); and a restricting portion (33) that is located further toward the inside in the radial direction than the prongs (32), extends to the other side in the axial direction from the annular body (31), and restricts the displacement of the cage (14) by contact with the inner ring raceway (21). An inner peripheral surface (61a) of the restricting portion (33) and an inner peripheral surface (31c) of the annular body (31) are arranged to face the shoulder (25). The inner peripheral surface (61a) of the restricting portion (33) and/or the inner peripheral surface (31c) of the annular body (31) is formed with a protrusion (55) that can make contact with the shoulder (25).

AKIMOTO SYOTA (JP)
YAMAMOTO YUYA (JP)

PCT/JP2022/014403

September 28, 2023

March 25, 2022

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JTEKT CORP (JP)

F16C33/41; F16C33/66

JP2021179236A	2021-11-18
JP2019060394A	2019-04-18

SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)

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