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GB2045315B - Earth boring bit with eccentrically formed bearing surface - Google Patents

Earth boring bit with eccentrically formed bearing surface

Info

Publication number
GB2045315B
GB2045315B GB8007269A GB8007269A GB2045315B GB 2045315 B GB2045315 B GB 2045315B GB 8007269 A GB8007269 A GB 8007269A GB 8007269 A GB8007269 A GB 8007269A GB 2045315 B GB2045315 B GB 2045315B
Authority
GB
United Kingdom
Prior art keywords
bearing surface
earth boring
boring bit
eccentrically formed
formed bearing
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
GB8007269A
Other versions
GB2045315A (en
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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 Dresser Industries Inc filed Critical Dresser Industries Inc
Publication of GB2045315A publication Critical patent/GB2045315A/en
Application granted granted Critical
Publication of GB2045315B publication Critical patent/GB2045315B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/102—Construction relative to lubrication with grease as lubricant
    • 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
    • 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
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2352/00—Apparatus for drilling

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)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
GB8007269A 1979-03-12 1980-03-04 Earth boring bit with eccentrically formed bearing surface Expired GB2045315B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1999779A 1979-03-12 1979-03-12

Publications (2)

Publication Number Publication Date
GB2045315A GB2045315A (en) 1980-10-29
GB2045315B true GB2045315B (en) 1982-12-22

Family

ID=21796191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8007269A Expired GB2045315B (en) 1979-03-12 1980-03-04 Earth boring bit with eccentrically formed bearing surface

Country Status (2)

Country Link
CA (1) CA1120917A (en)
GB (1) GB2045315B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6254275B1 (en) 1995-12-19 2001-07-03 Smith International, Inc. Sealed bearing drill bit with dual-seal configuration and fluid-cleaning capability
US6033117A (en) * 1995-12-19 2000-03-07 Smith International, Inc. Sealed bearing drill bit with dual-seal configuration
US6264367B1 (en) 1995-12-19 2001-07-24 Smith International, Inc. Dual-seal drill bit with fluid cleaning capability
US7992657B2 (en) 2006-08-18 2011-08-09 Atlas Copco Secoroc Llc Earth bit having a wear ring

Also Published As

Publication number Publication date
CA1120917A (en) 1982-03-30
GB2045315A (en) 1980-10-29

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Legal Events

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