GB2127071B - Friction bearing assembly for a roller cutter drill bit - Google Patents

Friction bearing assembly for a roller cutter drill bit

Info

Publication number
GB2127071B
GB2127071B GB08324984A GB8324984A GB2127071B GB 2127071 B GB2127071 B GB 2127071B GB 08324984 A GB08324984 A GB 08324984A GB 8324984 A GB8324984 A GB 8324984A GB 2127071 B GB2127071 B GB 2127071B
Authority
GB
United Kingdom
Prior art keywords
drill bit
bearing assembly
friction bearing
roller cutter
cutter drill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB08324984A
Other versions
GB2127071A (en
GB8324984D0 (en
Inventor
Kenneth William Jones
Henry Wallace Murdoch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reed Rock Bit Co
Original Assignee
Reed Rock Bit Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reed Rock Bit Co filed Critical Reed Rock Bit Co
Publication of GB8324984D0 publication Critical patent/GB8324984D0/en
Publication of GB2127071A publication Critical patent/GB2127071A/en
Application granted granted Critical
Publication of GB2127071B publication Critical patent/GB2127071B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB08324984A 1982-09-22 1983-09-19 Friction bearing assembly for a roller cutter drill bit Expired GB2127071B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42121182A 1982-09-22 1982-09-22

Publications (3)

Publication Number Publication Date
GB8324984D0 GB8324984D0 (en) 1983-10-19
GB2127071A GB2127071A (en) 1984-04-04
GB2127071B true GB2127071B (en) 1985-09-18

Family

ID=23669618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08324984A Expired GB2127071B (en) 1982-09-22 1983-09-19 Friction bearing assembly for a roller cutter drill bit

Country Status (1)

Country Link
GB (1) GB2127071B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6196339B1 (en) * 1995-12-19 2001-03-06 Smith International, Inc. Dual-seal drill bit pressure communication system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984158A (en) * 1973-09-10 1976-10-05 Dresser Industries, Inc. Journal and pilot bearings with alternating surface areas of wear resistant and anti-galling materials
NO762541L (en) * 1975-08-13 1977-02-15 Reed Tool Co
US4375242A (en) * 1980-08-11 1983-03-01 Hughes Tool Company Sealed and lubricated rock bit with air protected seal ring
US4402617A (en) * 1981-05-12 1983-09-06 Dresser Industries, Inc. Thin wall sintered bushing for a rock bit
US4478299A (en) * 1982-03-26 1984-10-23 Trend Rock Bit Alberta, Ltd. Rock bit construction

Also Published As

Publication number Publication date
GB2127071A (en) 1984-04-04
GB8324984D0 (en) 1983-10-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee