Rolling bearing

Details Rolling bearing Rolling bearing

2005-02-22

2005-02-22

Yee, Deborah (Department: 1742)

Metal treatment

Stock

Ferrous

C148S328000, C148S906000, C148S318000, C148S319000, C384S912000, C384S625000

Reexamination Certificate

active

06858100

ABSTRACT:
A rolling bearing including a rolling element made of steel is provided. The rolling element has a hardness of 620 to 750 HV in its interior. The rolling element is so constructed that the hardest point may exist within a depth of 10% of its diameter from a rolling contact surface of the rolling element, and that the hardness at this point is made higher by 20 to 150 HV than the hardness in the interior.

REFERENCES:
patent: 5336338 (1994-08-01), Toda
patent: 6095692 (2000-08-01), Takemura
patent: 6197128 (2001-03-01), Maeda
patent: 199 60 235 A 1 (2000-07-01), None
patent: WO 9841663 (1998-09-01), None
patent: 0 971 141 (2000-01-01), None
patent: 2 098 643 (1972-03-01), None
patent: 9-177789 (1997-07-01), None
patent: 2000-161362 (2000-06-01), None

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