Title:
WHEEL BEARING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2010/026723
Kind Code:
A1
Abstract:
Provided is a wheel bearing apparatus that permits a limited increase in hardness of a wheel mounting flange, which is the portion where strength and fatigue strength to resist high stress and repetitive stress are desired, and that limits lowered productivity caused by the number of steps. A hub (14) that has a wheel mounting flange (17) is a hot forged component made of a steel material. In the hub (14), the base material has a standard structure, there is a non-standard structure on the surface of the wheel mounting flange (17), and the non-standard structure is a structure obtained by laser hardening.
Inventors:
YOSHINO, Kohei (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
芳野康平 (〒37 静岡県磐田市東貝塚１５７８番地 ＮＴＮ株式会社内 Shizuoka, 〒4380037, JP)
芳野康平 (〒37 静岡県磐田市東貝塚１５７８番地 ＮＴＮ株式会社内 Shizuoka, 〒4380037, JP)
Application Number:
JP2009/004208
Publication Date:
March 11, 2010
Filing Date:
August 28, 2009
Export Citation:
Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
ＮＴＮ株式会社 (〒03 大阪府大阪市西区京町堀１丁目３番１７号 Osaka, 〒5500003, JP)
YOSHINO, Kohei (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
ＮＴＮ株式会社 (〒03 大阪府大阪市西区京町堀１丁目３番１７号 Osaka, 〒5500003, JP)
YOSHINO, Kohei (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
International Classes:
B60B27/00; B60B35/02; B60B35/14; B60B35/18; F16C19/18; F16C19/38; F16C33/58
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (Higobashi Nittai Bldg, 10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
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