Title:
転がり、摺動部品の製造方法および転がり軸受
Document Type and Number:
Japanese Patent JP4228725
Kind Code:
B2
Abstract:
A rolling, sliding part is made from a bearing steel, and the rolling, sliding surface thereof has a surface layer portion under residual compressive stress which is 56 to 64 in Rockwell C hardness, up to 12 vol. % in retained austenite content and 4 to 6 degrees in the X-ray half value width of martensite. Even if made from a common bearing steel, the rolling, sliding part is reduced in the likelihood of developing a WEA white etching area or like fatigue structure, consequently exhibiting a prolonged rolling, sliding life for use under severe conditions involving a high temperature, high speed, high load or high vibration.
Inventors:
Hisashi Harada
Tazukazu
Mitsuru Ueda
Murakami Yukitoshi
Tazukazu
Mitsuru Ueda
Murakami Yukitoshi
Application Number:
JP2003053219A
Publication Date:
February 25, 2009
Filing Date:
February 28, 2003
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
F16C33/62; C21D1/18; C21D9/36; C21D9/40; F16C33/12; F16C33/30; F16C33/32; F16C33/34; F16C33/44; F16C33/64; C21D1/06; C21D1/78
Domestic Patent References:
| JP11131154A | ||||
| JP7190072A | ||||
| JP61167715A | ||||
| JP9242762A |
Foreign References:
| WO2000050781A1 |
Attorney, Agent or Firm:
Norihiko Hibi
Einosuke Kishimoto
Akira Watanabe
Kiyosue Yasuko
Einosuke Kishimoto
Akira Watanabe
Kiyosue Yasuko