Metal treatment – Having portions of differing metallurgical properties or... – Roller bearing element
Patent
1993-08-10
2000-05-16
Ip, Sikyin
Metal treatment
Having portions of differing metallurgical properties or...
Roller bearing element
148333, 148526, 148589, 148639, B21K 102, F16C 1700
Patent
active
060632186
ABSTRACT:
In a method of manufacturing a bearing, a high-frequency hardened steel essentially containing the following elements in the following percentage by weight is employed as the material of at least one of the outer and inner races of the bearing which is drilled,
REFERENCES:
patent: 5077003 (1991-12-01), Muraoka et al.
Kobayashi Masayuki
Muraoka Tomoki
Ip Sikyin
NSK Ltd.
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