Title:
BALL BEARING
Document Type and Number:
WIPO Patent Application WO/2023/048058
Kind Code:
A1
Abstract:
Defining D1 as the diameter of a rivet shaft (12), D2 as the diameter of a base head part (13) and Da as the diameter of a ball (3), the rivet shaft (12) and the base head part (13) are formed such that α = D1/Da and β = D2/D1 satisfy the following expressions (1) and (2): (1) … 0.30 <α < 0.70, (2) … 1.35 <β < 1.70; defining D3 as the diameter of the crimped head (14) and H as the height of the crimped head (14), the crimped head (14) is formed so as to satisfy formulae (3) and (4).
Inventors:
KANBORI YASUHIRO (JP)
MOCHIZUKI YUTA (JP)
HASHIDUME YUUKI (JP)
SATO TAKUFUMI (JP)
MOCHIZUKI YUTA (JP)
HASHIDUME YUUKI (JP)
SATO TAKUFUMI (JP)
Application Number:
PCT/JP2022/034532
Publication Date:
March 30, 2023
Filing Date:
September 15, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/06; F16C33/42
Foreign References:
| JP6098720B2 | 2017-03-22 | |||
| JP2015059617A | 2015-03-30 | |||
| JP2017150584A | 2017-08-31 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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