AIR DYNAMIC PRESSURE BEARING DEVICE - SANKYO SEIKI SEISAKUSHO KK

Title:

AIR DYNAMIC PRESSURE BEARING DEVICE

Document Type and Number:

Japanese Patent JP2000213532

Kind Code:

A

Abstract:

To improve productivity for an air dynamic pressure bearing device.

Inexpensive and proper moldability can be obtained, and also a dynamic pressure bearing function in use can be properly maintained, by forming at least one side of a shaft member 3 and a bearing member 12 by an oil-impregnation sintered material, and providing oil discharge grooves 7 for discharging lubricating oil, infiltrating into a dynamic pressure bearing part from the oil-impregnation material, to the outside of a dynamic pressure contact part.

Inventors:

HAYAKAWA MASAMICHI
NAKAGAWA HISAYA
TAKIZAWA MICHIAKI

Application Number:

JP1597399A

Publication Date:

August 02, 2000

Filing Date:

January 25, 1999

Export Citation:

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Assignee:

SANKYO SEIKI SEISAKUSHO KK

International Classes:

F16C17/02; F16C33/10; (IPC1-7): F16C17/02; F16C33/10

Attorney, Agent or Firm:

Takahide Goto

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