FR2650352A1 - - Google Patents

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Publication number
FR2650352A1
FR2650352A1 FR9009674A FR9009674A FR2650352A1 FR 2650352 A1 FR2650352 A1 FR 2650352A1 FR 9009674 A FR9009674 A FR 9009674A FR 9009674 A FR9009674 A FR 9009674A FR 2650352 A1 FR2650352 A1 FR 2650352A1
Authority
FR
France
Prior art keywords
bearing
spindle
radial load
gas
pin
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.)
Granted
Application number
FR9009674A
Other languages
English (en)
French (fr)
Other versions
FR2650352B1 (enrdf_load_stackoverflow
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co Ltd
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
Priority claimed from JP1989089526U external-priority patent/JP2518939Y2/ja
Priority claimed from JP1990070117U external-priority patent/JP2531837Y2/ja
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of FR2650352A1 publication Critical patent/FR2650352A1/fr
Application granted granted Critical
Publication of FR2650352B1 publication Critical patent/FR2650352B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
    • F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
    • F16C32/0622—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via nozzles, restrictors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/08—Rigid support of bearing units; Housings, e.g. caps, covers for spindles
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
FR9009674A 1989-07-28 1990-07-30 Expired - Lifetime FR2650352B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1989089526U JP2518939Y2 (ja) 1989-07-28 1989-07-28 静圧気体軸受スピンドル
JP1990070117U JP2531837Y2 (ja) 1989-07-28 1990-06-29 高速静圧気体軸受装置

Publications (2)

Publication Number Publication Date
FR2650352A1 true FR2650352A1 (enrdf_load_stackoverflow) 1991-02-01
FR2650352B1 FR2650352B1 (enrdf_load_stackoverflow) 1995-05-12

Family

ID=26411274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9009674A Expired - Lifetime FR2650352B1 (enrdf_load_stackoverflow) 1989-07-28 1990-07-30

Country Status (2)

Country Link
FR (1) FR2650352B1 (enrdf_load_stackoverflow)
GB (1) GB2235259B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2676765A1 (en) * 2012-06-19 2013-12-25 Jtekt Corporation Spindel unit with a damper bearing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239892A (en) * 1990-08-27 1993-08-31 Mitutoyo Corporation Rotating device
JP3517263B2 (ja) * 1994-02-03 2004-04-12 Ｎｔｎ株式会社 静圧気体軸受スピンドル
JP2001254738A (ja) * 2000-03-10 2001-09-21 Ntn Corp 静圧気体軸受スピンドル
TW200402344A (en) * 2002-08-09 2004-02-16 Hitachi Via Mechanics Ltd Spindle device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2087434A5 (enrdf_load_stackoverflow) * 1970-05-20 1971-12-31 Cit Alcatel
US4366993A (en) * 1980-01-07 1983-01-04 Nippon Telegraph & Telephone Corp. Gas bearings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3430318A (en) * 1967-03-10 1969-03-04 Babcock & Wilcox Co Machine tools and instruments
GB2046370B (en) * 1979-01-13 1983-06-15 Nippon Telegraph & Telephone Gas bearing
JPS6356315U (enrdf_load_stackoverflow) * 1986-09-30 1988-04-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2087434A5 (enrdf_load_stackoverflow) * 1970-05-20 1971-12-31 Cit Alcatel
US4366993A (en) * 1980-01-07 1983-01-04 Nippon Telegraph & Telephone Corp. Gas bearings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2676765A1 (en) * 2012-06-19 2013-12-25 Jtekt Corporation Spindel unit with a damper bearing
US9011007B2 (en) 2012-06-19 2015-04-21 Jtekt Corporation Spindle unit

Also Published As

Publication number Publication date
GB9016234D0 (en) 1990-09-05
FR2650352B1 (enrdf_load_stackoverflow) 1995-05-12
GB2235259A (en) 1991-02-27
GB2235259B (en) 1993-10-27

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