Metal working – Method of mechanical manufacture – Process for making bearing or component thereof
Reexamination Certificate
2006-12-12
2006-12-12
Compton, Eric (Department: 3726)
Metal working
Method of mechanical manufacture
Process for making bearing or component thereof
C029S898060, C029S898063, C029S898066, C148S572000, C219S642000, C384S455000
Reexamination Certificate
active
07146735
ABSTRACT:
A bearing ring for a large roller bearing is formed with at least one annular race which is hardened by heating by juxtaposing that race with an inductor across a spacing which is maintained during the heating and then quenching. The spacing is controlled selectively so that it is:1 to 2 times a depth T of hardening of the surface layer for a radial-bearing race,0.6 to 1 times the depth T of hardening of the surface layer for an axial-bearing race whose inner diameter corresponds to an inner diameter of the bearing ring, at an outer edge of the axial-bearing race, 1.5 to 2 times the depth T of hardening of the surface layer for the axial-bearing race whose inner diameter corresponds to an inner diameter of the bearing ring at an inner edge thereof, and varying continuously between the outer edge and the inner edge, anduniformly 0.6 to 1 times the depth T of hardening of the surface layer for an axial-bearing race whose inner diameter is greater than that of the bearing ring.
REFERENCES:
patent: 2145864 (1939-02-01), Denneen et al.
patent: 2288033 (1942-06-01), Somes
patent: 2419691 (1947-04-01), Shafer
patent: 3108913 (1963-10-01), Sommer
patent: 3305409 (1967-02-01), Cary
patent: 3623128 (1971-11-01), Seulen et al.
patent: 3909314 (1975-09-01), Armstrong et al.
patent: 3944446 (1976-03-01), Bober
patent: 4363946 (1982-12-01), Busemann
patent: 4599502 (1986-07-01), Khare et al.
patent: 4759808 (1988-07-01), Novorsky
patent: 5134264 (1992-07-01), Burger et al.
patent: 5680693 (1997-10-01), Griebel et al.
patent: 5796078 (1998-08-01), Ottenwaelder et al.
patent: 1879514 (1963-09-01), None
patent: 2011141 (1971-09-01), None
patent: 3623119 (1987-05-01), None
patent: 199 55 385 (2000-07-01), None
patent: 1375684 (2004-01-01), None
patent: 52-127417 (1977-10-01), None
patent: 60 141827 (1985-07-01), None
patent: 2002-180129 (2002-06-01), None
Patent Abstract, JP 11242992, Sep. 7, 1999.
Patent Abstract, JP 60141827, Jul. 26, 1985.
Bracht Josef
Rollmann Jörg
Stakemeier Bernd
Wozniak Johannes
Compton Eric
Rothe Erde GmbH
Wilford Andrew
LandOfFree
Method of making a bearing ring for a large roller bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making a bearing ring for a large roller bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a bearing ring for a large roller bearing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3674655