JPS6430915A - Dynamic pressure fluid bearing and its manufacture - Google Patents

Dynamic pressure fluid bearing and its manufacture

Info

Publication number
JPS6430915A
JPS6430915A JP18294487A JP18294487A JPS6430915A JP S6430915 A JPS6430915 A JP S6430915A JP 18294487 A JP18294487 A JP 18294487A JP 18294487 A JP18294487 A JP 18294487A JP S6430915 A JPS6430915 A JP S6430915A
Authority
JP
Japan
Prior art keywords
plug
forming
dynamic pressure
rotary unit
draft
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
JP18294487A
Other languages
Japanese (ja)
Other versions
JP2513242B2 (en
Inventor
Koichi Kawakami
Yasuhiro Yamashita
Mamoru Tanaka
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.)
NSK Ltd
Original Assignee
NSK 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
Application filed by NSK Ltd filed Critical NSK Ltd
Priority to JP62182944A priority Critical patent/JP2513242B2/en
Publication of JPS6430915A publication Critical patent/JPS6430915A/en
Application granted granted Critical
Publication of JP2513242B2 publication Critical patent/JP2513242B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sliding-Contact Bearings (AREA)

Abstract

PURPOSE:To reduce an assembly work process and to perform the cost down by forming a shaft insertion hole, having a draft with the intermediate in a minimum contour, and a rotary unit, having a flange part mounting a rotary member, by aluminum die casting thereafter cutting the shaft insertion hole. CONSTITUTION:Providing a dynamic pressure generating groove in at least one of the opposed surfaces of a fixed shaft 4 and a plug 38 and forming a rotary unit 32, fitted to the plug 38, by an aluminum alloy, a rotary member 31 is mounted to a flange part 33. When this rotary unit 32 is formed by die casting, cone-shaped surfaces 36, 37 of draft, forming the intermediate part to a minimum contour part 35, are formed in a through hole 34, cutting radial bearing surfaces 17, 18 and a surface 39 for the plug 38 to be fitted. Accordingly, the cost down can be attained by reducing a number of part items and labor hours for work and assembly.
JP62182944A 1987-07-22 1987-07-22 Hydrodynamic bearing and manufacturing method thereof Expired - Lifetime JP2513242B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62182944A JP2513242B2 (en) 1987-07-22 1987-07-22 Hydrodynamic bearing and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62182944A JP2513242B2 (en) 1987-07-22 1987-07-22 Hydrodynamic bearing and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JPS6430915A true JPS6430915A (en) 1989-02-01
JP2513242B2 JP2513242B2 (en) 1996-07-03

Family

ID=16127095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62182944A Expired - Lifetime JP2513242B2 (en) 1987-07-22 1987-07-22 Hydrodynamic bearing and manufacturing method thereof

Country Status (1)

Country Link
JP (1) JP2513242B2 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659018A (en) * 1979-10-03 1981-05-22 Permawick Bearing Corp Cartridge bearing assembly
JPS5923318A (en) * 1982-07-30 1984-02-06 Toshiba Corp Polyhedral mirror motor
JPS5989823A (en) * 1982-11-11 1984-05-24 Matsushita Electric Ind Co Ltd Fluid bearing device
JPS60159417A (en) * 1984-01-31 1985-08-20 Matsushita Electric Ind Co Ltd Fluid bearing device
JPS613005A (en) * 1984-06-18 1986-01-09 Nippon Kokan Kk <Nkk> Plug flaw and wear detector for rolling mill for manufacturing seamless steel pipe
JPS6135130A (en) * 1984-07-25 1986-02-19 Oriental Motor Kk Flange structure of stepping motor
JPS6136516A (en) * 1984-07-25 1986-02-21 Nippon Seiko Kk Dynamic pressure type plain bearing and preparation thereof
JPS61269217A (en) * 1985-05-23 1986-11-28 Mitsubishi Electric Corp Rotary head assembly
JPS62167606A (en) * 1986-01-20 1987-07-24 Mitsubishi Electric Corp Rotary head assembly for magnetic recording and reproducing device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659018A (en) * 1979-10-03 1981-05-22 Permawick Bearing Corp Cartridge bearing assembly
JPS5923318A (en) * 1982-07-30 1984-02-06 Toshiba Corp Polyhedral mirror motor
JPS5989823A (en) * 1982-11-11 1984-05-24 Matsushita Electric Ind Co Ltd Fluid bearing device
JPS60159417A (en) * 1984-01-31 1985-08-20 Matsushita Electric Ind Co Ltd Fluid bearing device
JPS613005A (en) * 1984-06-18 1986-01-09 Nippon Kokan Kk <Nkk> Plug flaw and wear detector for rolling mill for manufacturing seamless steel pipe
JPS6135130A (en) * 1984-07-25 1986-02-19 Oriental Motor Kk Flange structure of stepping motor
JPS6136516A (en) * 1984-07-25 1986-02-21 Nippon Seiko Kk Dynamic pressure type plain bearing and preparation thereof
JPS61269217A (en) * 1985-05-23 1986-11-28 Mitsubishi Electric Corp Rotary head assembly
JPS62167606A (en) * 1986-01-20 1987-07-24 Mitsubishi Electric Corp Rotary head assembly for magnetic recording and reproducing device

Also Published As

Publication number Publication date
JP2513242B2 (en) 1996-07-03

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