JP6347929B2 - 焼結金属軸受 - Google Patents
焼結金属軸受 Download PDFInfo
- Publication number
- JP6347929B2 JP6347929B2 JP2013196974A JP2013196974A JP6347929B2 JP 6347929 B2 JP6347929 B2 JP 6347929B2 JP 2013196974 A JP2013196974 A JP 2013196974A JP 2013196974 A JP2013196974 A JP 2013196974A JP 6347929 B2 JP6347929 B2 JP 6347929B2
- Authority
- JP
- Japan
- Prior art keywords
- dynamic pressure
- sintered metal
- bearing
- metal bearing
- end surface
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 title claims description 77
- 229910052751 metal Inorganic materials 0.000 title claims description 77
- 230000002093 peripheral effect Effects 0.000 claims description 77
- 238000004513 sizing Methods 0.000 claims description 67
- 239000000853 adhesive Substances 0.000 claims description 24
- 230000001070 adhesive effect Effects 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 13
- 238000000465 moulding Methods 0.000 description 13
- 239000010687 lubricating oil Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000003825 pressing Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
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
- F16C33/14—Special methods of manufacture; Running-in
- F16C33/145—Special methods of manufacture; Running-in of sintered porous bearings
-
- 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
- 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
- F16C33/08—Attachment of brasses, bushes or linings to the bearing housing
-
- 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
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/107—Grooves for generating pressure
-
- 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
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
-
- 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
- F16C43/00—Assembling bearings
- F16C43/02—Assembling sliding-contact bearings
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
- G11B19/2036—Motors characterized by fluid-dynamic bearings
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
- G11B19/2045—Hubs
-
- 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
- H02K5/1672—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 rotary shaft at both ends of the rotor
-
- 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
- F16C2220/00—Shaping
- F16C2220/20—Shaping by sintering pulverised material, e.g. powder metallurgy
-
- 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
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/30—Material joints
- F16C2226/40—Material joints with adhesive
-
- 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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
-
- 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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/42—Groove sizes
-
- 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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/46—Gap sizes or clearances
-
- 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
- F16C2360/00—Engines or pumps
- F16C2360/46—Fans, e.g. ventilators
-
- 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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
-
- 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
- H02K5/1675—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 rotary shaft at only one end of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rotational Drive Of Disk (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
まず、最終的な製品となる焼結金属軸受8の材料となる原料粉末を用意し、これを金型プレス成形により所定の形状に圧縮成形する。具体的には、図示は省略するが、ダイと、ダイの孔内に挿入配置されるコアピンと、ダイとコアピンとの間に配設され、ダイに対して昇降可能に構成された下パンチ、および、ダイと下パンチの何れに対しても相対変位(昇降)可能に構成された上パンチとで構成される成形金型を用いて原料粉末の圧縮成形を行う。この場合、ダイの内周面とコアピンの外周面、および、下パンチの上端面とで区画形成される空間に原料粉末を充填し、然る後、下パンチを固定した状態で上パンチを下降させ、充填状態の原料粉末を軸方向に加圧する。そして、加圧しながら所定の位置まで上パンチを下降させ、原料粉末を所定の軸方向寸法にまで圧縮することで、圧粉成形体が成形される。
上述のようにして、圧粉成形体を得た後、この圧粉成形体を原料粉末に応じた温度で焼結することにより、焼結体8’を得る。
そして、焼結体8’に対して寸法サイジングを施して、焼結体8’の外径寸法や内径寸法、及び軸方向寸法を最終製品に準じた寸法に矯正すると共に、内周面8aの表面開孔率を、動圧軸受として好適な割合に調整する。この段階では、焼結体8’の内周面8aに所定の動圧溝8a1配列領域は未だ形成されてない(図5)。同様に、図示は省略するが、焼結体8’の両端面8b,8cに所定の動圧溝8b1,8c1配列領域は未だ形成されていない。そのため、寸法サイジング時、及び回転サイジング時には、上下方向の区別なく、成形金型に焼結体8’を投入することが可能となる。
上記一連の工程を経て得られた焼結体8’に対して所定の動圧溝サイジングを施すことで、焼結体8’の内周面8aに動圧溝8a1配列領域を成形する。ここで使用する成形装置は、図6に示すように、焼結体8’の圧入穴21aを有するダイ21と、ダイ21の圧入穴21aに挿入可能に配置されるサイジングピン22と、ダイ21とサイジングピン22との間に配設され、ダイ21に対して相対的に昇降可能に構成された下パンチ23、および、ダイ21と下パンチ23の何れに対しても昇降可能に構成された上パンチ24とを有する。この場合、ダイ21の圧入穴21aの内径寸法は、サイジングすべき焼結体8’の圧入代に応じて適宜設定される。また、サイジングピン22の外周面には、成形すべき内周面8aの動圧溝8a1配列領域に対応する形状の第1成形型が設けられると共に(図6)、上パンチ24の下端面24a、及び下パンチ23の上端面23aにはそれぞれ、成形すべき上端面8bの動圧溝8b1配列領域、下端面8cの動圧溝8c1配列領域に対応する形状の第2成形型及び第3成形型が設けられる(図示は省略)。なお、上パンチ24の下端面24aは、焼結体8’の上端面8bよりも外径側に大きく形成されており、上パンチ24の下降による上端面8bの加圧動作により、上端面8bの外周縁に位置する外側面取り部8eを押圧可能としている。下パンチ23の上端面23aについても、上パンチ24と同様、焼結体8’の下端面8cよりも外径側に大きく形成されており、下端面8cの加圧時、下端面8cの外周縁に位置する外側面取り部8e’を押圧可能としている。
2 ファンモータ
3 情報機器
4 ベース
5 ファン
6 駆動部
7 ハウジング
7a 内周面
8 焼結金属軸受
8’ 焼結体
8a 内周面
8a1 動圧溝(内周面)
8a2 傾斜丘部
8a3 帯部
8b 上端面
8b1 動圧溝(上端面)
8c 下端面
8c1 動圧溝(下端面)
8e,8e’ 外側面取り部
8f,8f’ 内側面取り部
9 回転部材
10 ハブ部
10a 円盤部
10a1 下端面
12 フランジ部
13 蓋部材
14 接着剤
21 ダイ
21a 圧入穴
22 サイジングピン
22a 第1成形型
23 下パンチ
24 上パンチ
a1,a1’,a01,a01’ 軸方向寸法(外側面取り部)
a2,a2’ 軸方向寸法(内側面取り部)
b1,b1’,b01,b01’ 径向寸法(外側面取り部)
b2,b2’ 径方向寸法(内側面取り部)
R1,R2 ラジアル軸受部
T1,T2 スラスト軸受部
S シール空間
Claims (5)
- 原料粉末を圧縮成形したものを焼結することで形成され、両端面の少なくとも外周縁に面取り部を設けると共に、内周面にサイジングによる動圧発生部を設けた焼結金属軸受において、
外周面と前記両端面を何れもサイジング面とし、
前記面取り部の軸方向寸法を径方向寸法よりも大きくすると共に、軸方向一端側と他端側との間での前記面取り部の軸方向寸法の差を0.05mm以上でかつ0.1mm以下とし、前記面取り部の径方向寸法の差を0.02mm以下とし、これにより上下反転することで前記両端面の各端面をスラスト軸受面として使用可能としたことを特徴とする焼結金属軸受。 - 請求項1に記載の焼結金属軸受と、この焼結金属軸受の内周に挿通される軸部と、該軸部と一体的に回転し、前記焼結金属軸受の何れかの端面と対向する端面対向部とを備えた流体動圧軸受装置であって、
前記焼結金属軸受は、前記両端面の一方の端面を前記端面対向部と対向配置した際に前記軸部の正回転に対応する形状の動圧発生部を前記一方の端面に有すると共に、前記両端面の他方の端面を前記端面対向部と対向配置した際に前記軸部の逆回転に対応する形状の動圧発生部を前記他方の端面に有する流体動圧軸受装置。 - 内周面に前記焼結金属軸受が接着剤で固定されるハウジングをさらに備え、該ハウジングの内周面と前記面取り部との間に前記接着剤が保持される請求項2に記載の流体動圧軸受装置。
- 請求項2又は3に記載の流体動圧軸受装置と、前記軸部に取付けられるファンとを備えたファンモータ。
- 請求項4に記載のファンモータとして、前記ファンの回転方向が異なる2種類のファンモータを搭載した情報機器。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013196974A JP6347929B2 (ja) | 2013-09-24 | 2013-09-24 | 焼結金属軸受 |
PCT/JP2014/073343 WO2015045784A1 (ja) | 2013-09-24 | 2014-09-04 | 焼結金属軸受、及びその製造方法 |
CN201480052646.2A CN105579721B (zh) | 2013-09-24 | 2014-09-04 | 烧结金属轴承及其制造方法 |
US15/022,042 US9732796B2 (en) | 2013-09-24 | 2014-09-04 | Sintered metal bearing and method for producing same |
EP14849162.4A EP3051159B1 (en) | 2013-09-24 | 2014-09-04 | Sintered metal bearing and method for producing same |
KR1020167005648A KR102206769B1 (ko) | 2013-09-24 | 2014-09-04 | 소결 금속 베어링, 및 그 제조 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013196974A JP6347929B2 (ja) | 2013-09-24 | 2013-09-24 | 焼結金属軸受 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015064020A JP2015064020A (ja) | 2015-04-09 |
JP6347929B2 true JP6347929B2 (ja) | 2018-06-27 |
Family
ID=52742931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013196974A Active JP6347929B2 (ja) | 2013-09-24 | 2013-09-24 | 焼結金属軸受 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9732796B2 (ja) |
EP (1) | EP3051159B1 (ja) |
JP (1) | JP6347929B2 (ja) |
KR (1) | KR102206769B1 (ja) |
CN (1) | CN105579721B (ja) |
WO (1) | WO2015045784A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6937182B2 (ja) * | 2017-07-25 | 2021-09-22 | 日本電産サンキョー株式会社 | モータおよびポンプ装置 |
JP2020165471A (ja) * | 2019-03-29 | 2020-10-08 | 日本電産株式会社 | 気体動圧軸受、モータおよび送風装置 |
CN113187730B (zh) * | 2020-01-13 | 2022-12-27 | 华为终端有限公司 | 微型泵 |
CN114799166B (zh) * | 2022-05-11 | 2024-04-26 | 余姚市盛达粉末冶金有限公司 | 一种粉末冶金生产系统及工艺 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS607492A (ja) | 1983-06-27 | 1985-01-16 | 富士通株式会社 | 単音節音声認識方式 |
GB2322915B (en) | 1997-03-06 | 2001-06-06 | Ntn Toyo Bearing Co Ltd | Hydrodynamic type porous oil-impregnated bearing |
JP3607492B2 (ja) | 1997-03-06 | 2005-01-05 | Ntn株式会社 | 動圧型多孔質含油軸受およびその製造方法 |
JP3954695B2 (ja) * | 1997-07-18 | 2007-08-08 | Ntn株式会社 | 動圧型多孔質含油軸受の製造方法 |
JP2000240653A (ja) * | 1999-02-24 | 2000-09-05 | Ntn Corp | 焼結含油軸受とその製造方法及び情報機器用スピンドルモータ |
JP2001012470A (ja) * | 1999-06-24 | 2001-01-16 | Hitachi Powdered Metals Co Ltd | 軸受の製造方法 |
JP2001291983A (ja) * | 2000-04-07 | 2001-10-19 | Shicoh Eng Co Ltd | 小型ファンモータ |
JP2004360863A (ja) * | 2003-06-06 | 2004-12-24 | Ntn Corp | 動圧軸受の製造方法 |
JP4811186B2 (ja) * | 2006-08-07 | 2011-11-09 | 日本電産株式会社 | 動圧軸受装置 |
JP2008101772A (ja) * | 2006-09-20 | 2008-05-01 | Nippon Densan Corp | スリーブユニットの製造方法、スリーブユニットおよびモータ |
JP2008163969A (ja) | 2006-12-27 | 2008-07-17 | Nippon Densan Corp | 軸受機構、モータおよび記録ディスク駆動装置 |
JP5306747B2 (ja) * | 2008-09-09 | 2013-10-02 | Ntn株式会社 | 流体軸受装置 |
WO2012121053A1 (ja) * | 2011-03-09 | 2012-09-13 | Ntn株式会社 | 流体動圧軸受装置 |
US8926183B2 (en) * | 2011-03-09 | 2015-01-06 | Ntn Corporation | Fluid dynamic bearing device |
-
2013
- 2013-09-24 JP JP2013196974A patent/JP6347929B2/ja active Active
-
2014
- 2014-09-04 WO PCT/JP2014/073343 patent/WO2015045784A1/ja active Application Filing
- 2014-09-04 KR KR1020167005648A patent/KR102206769B1/ko active IP Right Grant
- 2014-09-04 US US15/022,042 patent/US9732796B2/en active Active
- 2014-09-04 EP EP14849162.4A patent/EP3051159B1/en active Active
- 2014-09-04 CN CN201480052646.2A patent/CN105579721B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20160230811A1 (en) | 2016-08-11 |
CN105579721B (zh) | 2018-03-13 |
EP3051159A1 (en) | 2016-08-03 |
US9732796B2 (en) | 2017-08-15 |
CN105579721A (zh) | 2016-05-11 |
KR20160058766A (ko) | 2016-05-25 |
WO2015045784A1 (ja) | 2015-04-02 |
EP3051159B1 (en) | 2018-11-14 |
KR102206769B1 (ko) | 2021-01-25 |
EP3051159A4 (en) | 2017-03-15 |
JP2015064020A (ja) | 2015-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6199675B2 (ja) | 焼結金属軸受、及びこの軸受を備えた流体動圧軸受装置 | |
JP5384014B2 (ja) | 焼結軸受 | |
JP6347929B2 (ja) | 焼結金属軸受 | |
US8876385B2 (en) | Bearing member and fluid dynamic bearing device using same | |
JP5207657B2 (ja) | 動圧軸受装置の製造方法 | |
WO2018037822A1 (ja) | 動圧軸受およびその製造方法 | |
US20170023059A1 (en) | Sintered bearing, fluid dynamic bearing device provided with same, and sintered bearing manufacturing method | |
JP7076266B2 (ja) | 焼結含油軸受の製造方法 | |
JP2008039104A (ja) | 流体軸受装置 | |
JP2009228873A (ja) | 流体軸受装置 | |
JP5606831B2 (ja) | 軸受部材及びその製造方法 | |
US20240141953A1 (en) | Oil-impregnated sintered bearing and fluid dynamic bearing device provided with the bearing | |
WO2023189389A1 (ja) | 焼結含油軸受とこの軸受を備えた流体動圧軸受装置 | |
JP7094118B2 (ja) | 焼結金属製動圧軸受 | |
JP6981900B2 (ja) | 流体動圧軸受装置およびこれを備えるモータ | |
JP2010091004A (ja) | 流体動圧軸受装置及びその製造方法 | |
JP2022134339A (ja) | 焼結含油軸受とこの軸受を備えた流体動圧軸受装置 | |
WO2019065719A1 (ja) | 流体動圧軸受装置およびこれを備えるモータ | |
JP4675880B2 (ja) | 流体動圧軸受装置の製造方法 | |
JP2007040482A (ja) | 流体軸受装置の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20160826 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170407 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170606 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20171107 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20171227 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180309 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20180427 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20180511 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20180530 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6347929 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |