IP Library Granted Patent US 8,819,939
Granted Patent B2
US 8,819,939 · App. 12/990,464 · Granted Sep 2, 2014

Method of manufacturing a split bearing ring

Inventors: Jon F. V. Pohlman (Greenville, SC); Anthony P. Copper (Greenville, SC)
Assignee: Koyo Bearings USA LLC
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Quick Facts
Patent No.
US 8,819,939
App. No.
12/990,464
Granted
Sep 2, 2014
Kind
B2
Abstract

A method of manufacturing a split bearing ring comprises forming an endless ring ( 42 ) having first ( 34 ) and second edges ( 46 ), removing at least a portion of the ring between the first and second edges to form at least one aperture ( 50, 54 ), hardening the ring, and after hardening, splitting the ring adjacent the at least one aperture to create first and second mating ends ( 74, 78 ) of the ring.

Claims (27)

1. A method of manufacturing a split bearing ring, the method comprising:

forming an endless ring having first and second edges;

removing at least a portion of the ring between the first and second edges to form at least one V-shaped aperture having at least a V-shaped first edge and a V-shaped second edge that are both spaced from each other along the circumference of the ring and substantially parallel along the circumference of the ring;

hardening the ring;

after hardening, splitting the ring adjacent the at least one aperture to create first and second mating ends of the ring; and

abutting the first mating end and the second mating end of the ring to each other so that the first edge abuts the second edge.

2. The method of claim 1 , wherein removing at least a portion of the ring includes punching or piercing at least one aperture through the ring.

3. The method of claim 1 , wherein hardening includes case carburizing.

4. The method of claim 1 , wherein hardening includes through hardening.

5. The method of claim 1 , wherein splitting the ring includes detaching a portion of the ring from the remainder of the ring.

6. The method of claim 1 , further comprising removing a shoulder of material from the endless ring.

7. The method of claim 1 , further comprising inserting a shaft between the first end and the second end.

8. The method of claim 1 , wherein removing at least a portion of the ring further comprises forming at least one tab of material between one of the first and second edges and the at least one aperture.

9. The method of claim 1 , wherein the at least one aperture includes a first aperture and a second aperture spaced from the first aperture.

10. The method of claim 9 , wherein splitting the ring includes removing material from between the first aperture and the second aperture.

11. The method of claim 1 , wherein forming the endless ring includes a drawing process.

12. A method of manufacturing a split bearing ring, the method comprising:

forming an endless ring having first and second edges;

removing a first portion of the ring between the first and second edges to form a first aperture;

removing a second portion of the ring between the first and second edges to form a second aperture spaced from the first aperture so that a portion of the ring extends between the first aperture and the second aperture;

hardening the ring; and

after hardening, splitting the ring adjacent the first aperture to create a first end of the ring and splitting the ring adjacent the second aperture to create a second end of the ring;

removing the portion of the ring that extends between the first aperture and the second aperture; and

abutting the first end and the second end of the ring to each other.

13. The method of claim 12 , wherein removing the first portion and the second portion of the ring includes punching or piercing the ring to form the first and second apertures.

14. The method of claim 12 , wherein the first and second apertures are substantially V-shaped.

15. The method of claim 12 , wherein forming the endless ring includes a drawing process.

Assignments (3)
CHANGE OF NAME Recorded Sep 15, 2014
From: KOYO BEARINGS USA LLC
To: KOYO BEARINGS NORTH AMERICA LLC
Reel/Frame 033744/0787 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2010
From: POHLMAN, JON F. V.; COPPER, ANTHONY P.
To: THE TIMKEN COMPANY
Reel/Frame 025244/0711 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2010
From: THE TIMKEN COMPANY; TIMKEN US LLC; TIMKEN GMBH
To: KOYO BEARINGS USA LLC
Reel/Frame 025244/0744 →
Continuity (2)
Provisional Application 61094234 · Sep 4, 2008
Related Publication 20110035943A1 · Feb 17, 2011