GB1084675A – Gas bearings of ceramic material
– Google Patents
GB1084675A – Gas bearings of ceramic material
– Google Patents
Gas bearings of ceramic material
Info
Publication number
GB1084675A
GB1084675A
GB23091/65A
GB2309165A
GB1084675A
GB 1084675 A
GB1084675 A
GB 1084675A
GB 23091/65 A
GB23091/65 A
GB 23091/65A
GB 2309165 A
GB2309165 A
GB 2309165A
GB 1084675 A
GB1084675 A
GB 1084675A
Authority
GB
United Kingdom
Prior art keywords
ceramic material
sleeve
thrust
shaft
bearing
Prior art date
1964-06-08
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
GB23091/65A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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.)
1964-06-08
Filing date
1965-05-31
Publication date
1967-09-27
1965-05-31
Application filed by Minnesota Mining and Manufacturing Co
filed
Critical
Minnesota Mining and Manufacturing Co
1967-09-27
Publication of GB1084675A
publication
Critical
patent/GB1084675A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K5/00—Casings; Enclosures; Supports
H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
C—CHEMISTRY; METALLURGY
C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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
F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
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
F16C33/1005—Construction relative to lubrication with gas, e.g. air, as lubricant
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
F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
F16C33/122—Multilayer structures of sleeves, washers or liners
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
F16C17/00—Sliding-contact bearings for exclusively rotary movement
F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
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
F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
F16C2206/40—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal
F16C2206/42—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal based on ceramic oxides
F16C2206/44—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal based on ceramic oxides based on aluminium oxide (Al2O3)
Abstract
1,084,675. Bearings. MINNESOTA MINING & MANUFACTURING CO. May 31, 1965 [June 8, 1964], No. 23091/65. Heading F2A. A gas bearing is made of ceramic material and has highly polished » bearing » surfaces. In an embodiment, a sleeve 10 of ceramic material is mounted with clearance on a shaft 11 of ceramic material. The sleeve 10 carries an armature 14 of an electric motor, an extension 15 of which is provided for a pulley &c. to be affixed thereto. A housing 12 of the electric motor carries field windings 13 and is supported by the shaft 11. Axial movement of the sleeve 10 is restricted by retaining end thrust-washers 17, 18, which are attached to one end of the shaft 11 by a bolt 16; and by a thrust-washer 19 located between the other end of the sleeve 10 and the housing 12. The thrust-washers are made of ceramic material. The » bearing » surfaces are extremely smooth, the finish being no greater than twenty R.M.S. micro-inches; and are free from flaws of more than 0À01 inch in cross-section. The ceramic composition consists of 91 to 98% by weight of alpha alumina crystals and at least 2 to 6% by weight of a refractory glassy matrix. The alumina crystals are no greater than 150 microns in any dimension and 98% of the crystals are within the range of 0À5 to 40 microns. The glassy matrix consists of silica with alumina and magnesia distributed randomly therethrough. The ceramic material is compacted to a density of at least 89% of the theoretical maximum density.
GB23091/65A
1964-06-08
1965-05-31
Gas bearings of ceramic material
Expired
GB1084675A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US373280A
US3284144A
(en)
1964-06-08
1964-06-08
Bearings
Publications (1)
Publication Number
Publication Date
GB1084675A
true
GB1084675A
(en)
1967-09-27
Family
ID=23471737
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB23091/65A
Expired
GB1084675A
(en)
1964-06-08
1965-05-31
Gas bearings of ceramic material
Country Status (4)
Country
Link
US
(1)
US3284144A
(en)
DE
(1)
DE1525165A1
(en)
GB
(1)
GB1084675A
(en)
NL
(1)
NL6507284A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2526862A1
(en)
*
1982-05-14
1983-11-18
Ficht Gmbh
SLIDING SYSTEM FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR TWO-STROKE INTERNAL COMBUSTION ENGINES COMPRISING MUTUALLY OPPOSED CYLINDERS
Families Citing this family (17)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3414338A
(en)
*
1965-10-22
1968-12-03
Fairchild Hiller Corp
Gas bearing adapter
US3428374A
(en)
*
1966-04-13
1969-02-18
Kaman Corp
Self-lubricating bearing
US3535007A
(en)
*
1967-07-08
1970-10-20
Emil A Klingler
Bearing
US3535005A
(en)
*
1968-11-20
1970-10-20
Kaman Corp
Bearing construction
US3535006A
(en)
*
1969-01-29
1970-10-20
Kaman Aerospace Corp
Bearing construction
US3730316A
(en)
*
1971-04-30
1973-05-01
Borg Warner
One-way clutch
GB1417244A
(en)
*
1973-01-19
1975-12-10
Nat Res Dev
Temperature compensating ceramic/metal bearing assemblies
DE2821595A1
(en)
*
1978-05-17
1983-04-14
Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen
HIGH STRENGTH CERAMIC COMPOSITE TUBE, ITS PRODUCTION AND USE
NL8502650A
(en)
*
1985-09-27
1987-04-16
Pelt & Hooykaas
GAS BEARER AND ARMY PART SUITABLE FOR THIS.
JPS6388314A
(en)
*
1986-09-30
1988-04-19
Toshiba Corp
Dynamic pressure air bearing
US5017022A
(en)
*
1988-11-09
1991-05-21
Allied-Signal, Inc.
High temperature bearing
WO1990005247A1
(en)
*
1988-11-09
1990-05-17
Allied-Signal Inc.
High temperature bearing
US5019738A
(en)
*
1990-07-16
1991-05-28
Lincoln Laser Company
Self-pressurizing gas supported surface-roughness bearing
DE69217769T2
(en)
*
1991-08-19
1997-10-02
Sumitomo Electric Industries
Compound warehouse structure
FR2711458B1
(en)
*
1993-10-19
1995-11-24
Valeo Systemes Dessuyage
Rotating electric machine and electric motor with electronic commutation in particular intended to equip a fan unit.
US6702466B2
(en)
1999-10-15
2004-03-09
Ngk Spark Plug Co., Ltd.
Ceramic dynamic-pressure bearing, motor having bearing, hard disk drive, polygon scanner, and method for manufacturing ceramic dynamic-pressure bearing
JP2002266850A
(en)
*
2001-03-08
2002-09-18
Ngk Spark Plug Co Ltd
Hard disk device
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2696413A
(en)
*
1951-07-25
1954-12-07
Norton Co
Bearing
US3037828A
(en)
*
1959-08-17
1962-06-05
Harold J Michael
Bearing and method of bearing manufacture
1964
1964-06-08
US
US373280A
patent/US3284144A/en
not_active
Expired – Lifetime
1965
1965-05-31
GB
GB23091/65A
patent/GB1084675A/en
not_active
Expired
1965-06-03
DE
DE19651525165
patent/DE1525165A1/en
active
Pending
1965-06-08
NL
NL6507284A
patent/NL6507284A/xx
unknown
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2526862A1
(en)
*
1982-05-14
1983-11-18
Ficht Gmbh
SLIDING SYSTEM FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR TWO-STROKE INTERNAL COMBUSTION ENGINES COMPRISING MUTUALLY OPPOSED CYLINDERS
GB2123495A
(en)
*
1982-05-14
1984-02-01
Ficht Gmbh
Ceramic sliding bearings
Also Published As
Publication number
Publication date
DE1525165A1
(en)
1969-06-26
NL6507284A
(en)
1965-12-09
US3284144A
(en)
1966-11-08
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