Title:
BEARING DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2011140302
Kind Code:
A
Abstract:
To suppress generation of fine cracks in a caulked portion of a rotary shaft in relation to a hub wheel, in a bearing device for a vehicle incorporated with a constant velocity joint.
This bearing device includes the hub wheel formed with a hub flange on an outer peripheral surface and the rotary shaft made of a steel material which is formed integrally with a cup-shaped outer ring member of the constant velocity joint and is inserted into a center hole of the hub wheel. An end portion of the rotary shaft is expanded radially outward toward the hub wheel to be formed into the caulked portion. A sulfur content is adjusted to be 0.015 wt.% or less in a steel material forming the caulked portion.
Inventors:
TODA KAZUHISA
ISHII TOMOHIRO
KASHIWAGI SHINICHIRO
TOMITA DAISAKU
ISHII TOMOHIRO
KASHIWAGI SHINICHIRO
TOMITA DAISAKU
Application Number:
JP2011008881A
Publication Date:
July 21, 2011
Filing Date:
January 19, 2011
Export Citation:
Assignee:
JTEKT CORP
International Classes:
B60B35/02; C22C38/00; F16C19/18; F16C33/62; F16C43/04
Domestic Patent References:
| JP2000211302A | 2000-08-02 | |||
| JPH10272903A | 1998-10-13 | |||
| JPH1162951A | 1999-03-05 | |||
| JP2000211302A | 2000-08-02 |
Attorney, Agent or Firm:
Kazuhide Okada