Title:
DOUBLE-ROW DEEP-GROOVE BALL BEARING AND MAGNETIC BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/248266
Kind Code:
A1
Abstract:
This double-row deep-groove ball bearing comprises an outer ring (20) in which a first outer ring raceway groove (26) and a second outer ring raceway groove (27) are provided to the inner periphery, a first inner ring (21) in which a first inner ring raceway groove (28) is provided to the outer periphery, a second inner ring (22) in which a second inner ring raceway groove (29) is provided to the outer periphery, a plurality of first balls (23) provided between the first inner ring raceway groove (28) and the first outer ring raceway groove (26), and a plurality of second balls (24) provided between the second inner ring raceway groove (29) and the second outer ring raceway groove (27). The outer ring (20) has a first portion (20a) where the first outer ring raceway groove (26) is provided, and a second portion (20b) where the second outer ring raceway groove (27) is provided, the second portion (20b) being integrated with the first portion (20a). The first inner ring (21) and the second inner ring (22) are separate from one another.
Inventors:
KIMURA KAZUHIRO (JP)
ONO HIROSHI (JP)
ONO HIROSHI (JP)
Application Number:
PCT/JP2022/024441
Publication Date:
December 28, 2023
Filing Date:
June 20, 2022
Export Citation:
Assignee:
JTEKT CORP (JP)
International Classes:
F16C19/08; F16C32/04; F16C33/60
Foreign References:
| JPH07167139A | 1995-07-04 | |||
| JPH07133828A | 1995-05-23 | |||
| JP2004116558A | 2004-04-15 | |||
| JPS6140510U | 1986-03-14 | |||
| JP2002168244A | 2002-06-14 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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