Title:
BEARING
Document Type and Number:
Japanese Patent JP2005249112
Kind Code:
A
Abstract:
To improve the durability by adjusting a high frequency hardened layer of a component treated by high-frequency hardening in a bearing receiving thermal influence during its use.
In this bearing including a rolling shaft 1 as an inner ring and manufactured by performing high-frequency hardening treatment on the rolling shaft 1, a hardness of a surface of the high-frequency hardening layer 1a of the rolling shaft is HRC59-65, and the quantity of austenite remaining on the surface is 30% or less.
Inventors:
KATAOKA MASAHIKO
WATANABE YASUYUKI
ABE KATSUSHI
WATANABE YASUYUKI
ABE KATSUSHI
Application Number:
JP2004062142A
Publication Date:
September 15, 2005
Filing Date:
March 05, 2004
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16H53/06; F16C19/26; F16C33/64; (IPC1-7): F16C33/64; F16C19/26; F16H53/06
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Seiichi Watanabe
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Seiichi Watanabe