ZA745188B - Rock bit bearing system for carrying out thrust - Google Patents

Rock bit bearing system for carrying out thrust

Info

Publication number
ZA745188B
ZA745188B ZA00745188A ZA745188A ZA745188B ZA 745188 B ZA745188 B ZA 745188B ZA 00745188 A ZA00745188 A ZA 00745188A ZA 745188 A ZA745188 A ZA 745188A ZA 745188 B ZA745188 B ZA 745188B
Authority
ZA
South Africa
Prior art keywords
carrying
bearing system
rock bit
bit bearing
out thrust
Prior art date
Application number
ZA00745188A
Other languages
English (en)
Inventor
R Miglierini
Original Assignee
Dresser Ind
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 Ind filed Critical Dresser Ind
Publication of ZA745188B publication Critical patent/ZA745188B/xx

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
ZA00745188A 1973-09-12 1974-08-13 Rock bit bearing system for carrying out thrust ZA745188B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39662273A 1973-09-12 1973-09-12

Publications (1)

Publication Number Publication Date
ZA745188B true ZA745188B (en) 1975-08-27

Family

ID=23567984

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00745188A ZA745188B (en) 1973-09-12 1974-08-13 Rock bit bearing system for carrying out thrust

Country Status (7)

Country Link
CA (1) CA1031766A (no)
FI (1) FI260474A (no)
FR (1) FR2243323B1 (no)
GB (1) GB1473938A (no)
NO (1) NO743269L (no)
SE (1) SE7411469L (no)
ZA (1) ZA745188B (no)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2755591C2 (de) * 1977-12-14 1985-11-07 SKF GmbH, 8720 Schweinfurt Rollenmeißel mit kegelig ausgebildeten Schneidrollen
CA2009987A1 (en) * 1990-02-14 1991-08-14 Kenneth M. White Journal bearing type rock bit

Also Published As

Publication number Publication date
FR2243323A1 (no) 1975-04-04
FI260474A (no) 1975-03-13
AU7247874A (en) 1976-02-19
CA1031766A (en) 1978-05-23
SE7411469L (no) 1975-03-13
FR2243323B1 (no) 1982-11-05
GB1473938A (en) 1977-05-18
NO743269L (no) 1975-04-07

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