Claims
- 1. A radial friction bearing ring having composite bearing surfaces adjacent relatively rotating mating members, said ring having a predetermined pattern of circumferentially alternating areas of relatively soft bearing metal and relatively harder wear resisting metal; and wherein said radial friction bearing ring is a discontinuous cylindrical floating ring having a smaller inside diameter composite bearing surface of a first metal and a second metal, and a larger outside diameter composite bearing surface of said first metal and a third metal and wherein said predetermined pattern extends radially through said floating ring.
- 2. The invention as set forth in claim 1 wherein one of said composite bearing surfaces is integral to a shaft member.
- 3. The invention as set forth in claim 1 wherein one of said composite bearing surfaces is integral to a housing member.
- 4. The invention as set forth in claim 1 wherein said radial friction bearing ring is a discontinuous cylindrical floating ring having a smaller inside diameter composite bearing surface and a larger outside diameter composite bearing surface and wherein said predetermined pattern extends radially through said floating ring.
- 5. The invention as set forth in claim 1 wherein said radial friction bearing ring is incorporated in a rotary cone rock bit to rotatively mount a cutter cone to a downwardly and inwardly directed rock bit journal extending from a leg of said rock bit.
- 6. A radial friction bearing ring for a rotary cone rock bit, said bearing ring comprising a discontinuous cylindrical ring forming a predetermined pattern of a smaller inside diameter composite bearing surface of a first metal and a second metal, and a larger outside diameter composite bearing surface of said first metal and a third metal and wherein said predetermined pattern extends radially through said floating ring, said floating ring being positioned between a journal bearing and a rotary cone of said rock bit.
- 7. The invention as set forth in claim 6 wherein said first metal is an alloy steel.
- 8. The invention as set forth in claim 6 wherein said second metal is beryllium copper.
- 9. The invention as set forth in claim 6 wherein said third metal is aluminum bronze.
CROSS REFERENCE TO RELATED APPLICATIONS
This is a division of application Ser. No. 334,499 filed Dec. 28, 1981.
US Referenced Citations (3)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2300931 |
Sep 1976 |
FRX |
Divisions (1)
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Number |
Date |
Country |
Parent |
334499 |
Dec 1981 |
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