Title:
ROLLING BEARING UNIT FOR SUPPORTING WHEEL, AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2005088668
Kind Code:
A
Abstract:
To prevent occurrence of a damage such as cracks even when high stresses are exerted in a caulked portion 9a, and to prevent occurrence of pre-load escape and creep of an inner wheel 3.
In order to reinforce the strength of the caulked portion 9a of a hub 2, the caulked portion 9a is formed so that the fiber flow of the caulked portion 9a is not broken off at a contact part of the caulked portion 9a with the inner ring 3 on at least one side of cutting surfaces including the axis α of the hub 2.
Inventors:
HAGIWARA NOBUYUKI
KIMURA TOSHIKATSU
HASHIDA MASARU
KATANO KAORU
KANBE TOMOHIRO
KIMURA TOSHIKATSU
HASHIDA MASARU
KATANO KAORU
KANBE TOMOHIRO
Application Number:
JP2003322713A
Publication Date:
April 07, 2005
Filing Date:
September 16, 2003
Export Citation:
Assignee:
NSK LTD
International Classes:
B60B27/00; B21D39/00; B60B35/02; B60B35/18; F16C19/18; F16C33/60; (IPC1-7): B60B27/00; B60B35/02; F16C19/18; F16C33/60
Attorney, Agent or Firm:
Takeo Koyama
Nakai Shun
Kinzo Koyama
Nakai Shun
Kinzo Koyama