JPS6476467A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS6476467A
JPS6476467A JP23215587A JP23215587A JPS6476467A JP S6476467 A JPS6476467 A JP S6476467A JP 23215587 A JP23215587 A JP 23215587A JP 23215587 A JP23215587 A JP 23215587A JP S6476467 A JPS6476467 A JP S6476467A
Authority
JP
Japan
Prior art keywords
bearings
axis body
structure body
magnetic disk
equal
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.)
Pending
Application number
JP23215587A
Other languages
Japanese (ja)
Inventor
Shigeo Nakamura
Hideaki Amano
Satoru Yamaura
Toshio Matsushita
Chikayuki Sogabe
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP23215587A priority Critical patent/JPS6476467A/en
Publication of JPS6476467A publication Critical patent/JPS6476467A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of Heads (AREA)

Abstract

PURPOSE:To suppress mechanical vibration of the title device and thermal off-track and to facilitate the manufacturing by equalizing bearings for supporting an actuator oscillating part to a hollow structure body in their ther mal expansion coefficients and providing a radial pre-load material between an axis body and said bearings. CONSTITUTION:When a voice-coil motor of the magnetic disk device is driven, a magnet circuit is formed between a coil bobbin 7 and a magnet 8, and the actuator oscillating part 4 integrated with the bobbin 7 is rotated around the axis body 1 via the bearings 3, and then a magnetic head 6 mounted on the oscillating part 4 is rotated, thus constituting the device. Then, the axis body 1 is supported on its both ends by the hollow structure body 5 with its upper part and lower part, and each thermal expansion coefficient of the axis body 1 and the structure body 5 is equal to each other. In addition, plural bearings 3 are equal in their inner and outer diameters, and moreover, the radial pre-load material 2 is provided to be three point contacts with a fitting part between the inner ring of the bearings 3 and the axis body 1.
JP23215587A 1987-09-18 1987-09-18 Magnetic disk device Pending JPS6476467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23215587A JPS6476467A (en) 1987-09-18 1987-09-18 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23215587A JPS6476467A (en) 1987-09-18 1987-09-18 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS6476467A true JPS6476467A (en) 1989-03-22

Family

ID=16934857

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23215587A Pending JPS6476467A (en) 1987-09-18 1987-09-18 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS6476467A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003040292A (en) * 2001-07-30 2003-02-13 Toppan Printing Co Ltd Packaging bag with rinsing port function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003040292A (en) * 2001-07-30 2003-02-13 Toppan Printing Co Ltd Packaging bag with rinsing port function

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