Title:
ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2021/153793
Kind Code:
A1
Abstract:
In the present invention, a crowned busbar shape is formed in an axial center section of at least one of an outer ring raceway, an inner ring raceway, and a rolling surface of a roller. The crowned busbar shape has: a first busbar shape comprising a straight line; a pair of second busbar shapes formed outwardly in the axial direction from both axial ends of the first busbar shape and comprising a single-arc curve; and a pair of third busbar shapes formed outwardly in the axial direction from both axial ends of the second busbar shape and comprising a composite curve of a single-arc curve and a logarithmic curve.
Inventors:
SUWA TOMONORI (JP)
OGUMA KENTARO (JP)
MAEDA YOSHINORI (JP)
OGUMA KENTARO (JP)
MAEDA YOSHINORI (JP)
Application Number:
PCT/JP2021/003434
Publication Date:
August 05, 2021
Filing Date:
January 29, 2021
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C19/26; F16C33/34; F16C33/58
Domestic Patent References:
| WO2018190134A1 | 2018-10-18 | |||
| WO2018151209A1 | 2018-08-23 | |||
| WO2018047641A1 | 2018-03-15 | |||
| WO2018020951A1 | 2018-02-01 |
Foreign References:
| JP2012107702A | 2012-06-07 | |||
| JP2010164179A | 2010-07-29 | |||
| JP2010106975A | 2010-05-13 | |||
| JP5056115B2 | 2012-10-24 | |||
| JP2020014135A | 2020-01-23 |
Other References:
See also references of EP 4098894A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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