Title:
CROSSED ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2022/070990
Kind Code:
A1
Abstract:
The present invention suppresses the causes of deterioration of the low torque property and rolling life of a crossed roller bearing, while avoiding excessive machining of an inclined raceway surface of the crossed roller bearing. An inclined raceway surface (1a) of an outer ring (1) is provided so as to have a smaller surface roughness Ra than the surface roughness Ra of an inclined raceway surface (2a) of an inner ring (2). The inclined raceway surfaces (1a, 2a) are provided such that the surface roughnesses Ra are smaller than or equal to 0.3 μm.
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Inventors:
KAWAKAMI YUICHIRO (JP)
KATAFUCHI KEITA (JP)
KATAFUCHI KEITA (JP)
Application Number:
PCT/JP2021/034300
Publication Date:
April 07, 2022
Filing Date:
September 17, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/36
Domestic Patent References:
| WO2017033396A1 | 2017-03-02 |
Foreign References:
| JP2020046008A | 2020-03-26 | |||
| JPH06264933A | 1994-09-20 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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