FR1334783A - Bearing for roller trephine and method for its manufacture - Google Patents

Bearing for roller trephine and method for its manufacture

Info

Publication number
FR1334783A
FR1334783A FR910731A FR910731A FR1334783A FR 1334783 A FR1334783 A FR 1334783A FR 910731 A FR910731 A FR 910731A FR 910731 A FR910731 A FR 910731A FR 1334783 A FR1334783 A FR 1334783A
Authority
FR
France
Prior art keywords
trephine
roller
manufacture
bearing
roller trephine
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
FR910731A
Other languages
French (fr)
Inventor
Karl-Guenter Bechem
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 filed Critical
Priority to FR910731A priority Critical patent/FR1334783A/en
Application granted granted Critical
Publication of FR1334783A publication Critical patent/FR1334783A/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
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating 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)
FR910731A 1962-09-28 1962-09-28 Bearing for roller trephine and method for its manufacture Expired FR1334783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR910731A FR1334783A (en) 1962-09-28 1962-09-28 Bearing for roller trephine and method for its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR910731A FR1334783A (en) 1962-09-28 1962-09-28 Bearing for roller trephine and method for its manufacture

Publications (1)

Publication Number Publication Date
FR1334783A true FR1334783A (en) 1963-08-09

Family

ID=8787681

Family Applications (1)

Application Number Title Priority Date Filing Date
FR910731A Expired FR1334783A (en) 1962-09-28 1962-09-28 Bearing for roller trephine and method for its manufacture

Country Status (1)

Country Link
FR (1) FR1334783A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296753A1 (en) * 1975-02-18 1976-07-30 Creusot Loire Three-arm drilling tool - with rotary cutters mounted on spindles separately fabricated and welded to the arms
US4270812A (en) * 1977-07-08 1981-06-02 Thomas Robert D Drill bit bearing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296753A1 (en) * 1975-02-18 1976-07-30 Creusot Loire Three-arm drilling tool - with rotary cutters mounted on spindles separately fabricated and welded to the arms
US4270812A (en) * 1977-07-08 1981-06-02 Thomas Robert D Drill bit bearing

Similar Documents

Publication Publication Date Title
CH527328A (en) Sling and method for its manufacture
FR1535570A (en) Advanced self-centering bearing and method for its manufacture
CH392036A (en) Prestressed enclosure and method for its manufacture
CH401760A (en) Cable and method for its manufacture
CH433874A (en) Plain bearing and method for its manufacture
FR1514911A (en) Method and composition for the manufacture of molds for metals
CH458846A (en) Spherical bearing and method for its manufacture
CH522141A (en) Self-aligning spherical bearing and method for its manufacture
FR1334783A (en) Bearing for roller trephine and method for its manufacture
FR1361671A (en) Thermoplastic sliding bearing and method for its manufacture
FR1372265A (en) Rolling bearing and method for its manufacture
CH428534A (en) Tobacco-based composition and process for its manufacture
FR1344995A (en) Method and device for the manufacture of cages for roller or needle bearings
FR1375427A (en) electrode for electrochemically reactive elements and method for its manufacture
CH413022A (en) Flexible metal sheath and method for its manufacture
FR1326220A (en) Window frame and method for its manufacture
FR1386534A (en) Sheet steel cage for tapered roller bearings and its manufacturing process
FR86315E (en) semiconductor element and method for its manufacture
FR1369029A (en) Method and machine for the manufacture of smooth bearings
FR1397172A (en) New alicyclic enamines and process for their manufacture
FR1400281A (en) Sleeved split bearing and method for its manufacture
FR1341098A (en) Pipe and method for its manufacture
FR1332400A (en) Capacitor and method for its manufacture
FR1321374A (en) Divided cage for needle roller bearings
FR1291913A (en) Process and machine for the manufacture of Venetian blinds