Title:
WELDED CAGE FOR ROLLER BEARING, ROLLER WITH CAGE, METHOD FOR DISCRIMINATING WELDED JUNCTION PORTION, AND METHOD FOR EXAMINING QUALITY OF WELDED CAGE FOR ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2022/065223
Kind Code:
A1
Abstract:
A welded cage according to the present invention is provided with a base material (15) extending in the circumferential direction and a welded spot (13) formed by joining one end and the other end of the base material to each other by welding, and holds a roller in each of a plurality of pockets formed in the base material at intervals in the circumferential direction. The welded spot includes a welded junction portion (13a) on one side in the radial direction and a diffused junction portion (13b) on the other side in the radial direction, and the dimension of the welded junction portion in the radial direction is 70-95% of the dimension of the welded spot in the radial direction.
Inventors:
TSUCHIYA MASARU (JP)
YAMAMOTO KAZUYUKI (JP)
YAMAMOTO KAZUYUKI (JP)
Application Number:
PCT/JP2021/034272
Publication Date:
March 31, 2022
Filing Date:
September 17, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/54; B23K11/02; B23K31/00; G01M13/04; G01N33/2045
Domestic Patent References:
| WO2019131813A1 | 2019-07-04 |
Foreign References:
| JP2009270655A | 2009-11-19 | |||
| JP2013007435A | 2013-01-10 | |||
| JPH01299785A | 1989-12-04 | |||
| JP2013185700A | 2013-09-19 | |||
| JP2001205449A | 2001-07-31 | |||
| JP2007064391A | 2007-03-15 | |||
| JPH07108383A | 1995-04-25 |
Attorney, Agent or Firm:
IMY INTERNATIONAL PATENT OFFICE, P.C. (JP)
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