Title:
HUB UNIT BEARING AND METHOD FOR MANUFACTURING SAME, ROCKING-TYPE CAULKING DEVICE, AND VEHICLE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/033711
Kind Code:
A1
Abstract:
[Problem] To provide a method which is for manufacturing a hub unit bearing and which can curb manufacturing cost. [Solution] A circumferential-direction portion of a machining surface part 36 that has a projected curved shape having a linear bus inclined with respect to a self-rotation axis L inclined with respect to the center axis (reference axis C) of a shaft member 23 corresponding to a first hub element and that is provided to a die 35 supported so as to be rotatable about the self-rotation axis L, is pressed against an end surface on one axial-direction side of a cylindrical part which extends from an end in the one axial-direction side of a fitting shaft 29 toward the one axial-direction side, in a state where a hub wheel 22 which is a second hub element is fitted on the outside of the fitting shaft 29. While doing so, the cylindrical part is crushed in the axial direction to form a caulking part 33 by rotating the die 35 about the reference axis C, and the hub wheel 22 and the shaft member 23 are coupled and fixed together by pressing the caulking part 33 on a pressed surface 59.
Inventors:
HAGIWARA NOBUYUKI (JP)
RYU SONJI (JP)
RYU SONJI (JP)
Application Number:
PCT/JP2020/031245
Publication Date:
February 25, 2021
Filing Date:
August 19, 2020
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
B21D39/00; B21J9/02; B21K1/05; B60B35/02; F16C19/38; F16C33/64; F16C35/063; F16C43/04
Domestic Patent References:
| WO2019138711A1 | 2019-07-18 |
Foreign References:
| JP2005121211A | 2005-05-12 | |||
| JP2006312460A | 2006-11-16 | |||
| EP0927651A2 | 1999-07-07 | |||
| US20110241416A1 | 2011-10-06 | |||
| JP2008536075A | 2008-09-04 | |||
| JP2016074024A | 2016-05-12 |
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