Rolling part and power transmission part

Details Rolling part and power transmission part Rolling part and power transmission part

2007-07-03

2007-07-03

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S492000

Reexamination Certificate

active

10515314

ABSTRACT:
There is provided a rolling component formed of a steel material of the medium carbon steel level that provides a rolling life improved to be comparable to that of bearing steel and also provides improved characteristic against surface-cracking, and a power transmission component including the rolling component. To achieve this, the rolling component is formed of steel having an induction hardened portion having a stress intensity factor range associated with tension associated-fatigue crack extension that has a lower limit ΔKth of 6.2 Mpa√m.

REFERENCES:
patent: 199 28 775 (2000-01-01), None
patent: 02-153044 (1990-06-01), None
patent: 2002-363700 (2002-12-01), None
patent: 2003-048404 (2003-02-01), None
patent: WO 03/100277 (2003-12-01), None

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