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Patent Searching and Data


Title:
SCANNER MOTOR
Document Type and Number:
Japanese Patent JP2011141022
Kind Code:
A
Abstract:

To provide a scanner motor, capable of ensuring a long service life and safety performance even with ultra-high speed rotation.

The scanner motor includes an axially supporting rotary shaft 140 which is rotatable, and a hollow cylindrical bearing 130 having a fluid dynamic shafting 131 at an upper part, and an oil impregnation sintered shafting 132 at a lower part for rotatably supporting the rotary shaft 140. A contact surface of the oil impregnation sintered shafting 132 with the rotary shaft 140 is a curved surface, and the length of the fluid dynamic-pressure shafting 131 is longer than the length of the oil impregnation sintered shafting 132.


Inventors:
Song, Sang Jae
Bae, Young Jin
OH, Song Bon
Application Number:
JP2010000067163
Publication Date:
July 21, 2011
Filing Date:
March 24, 2010
Export Citation:
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Assignee:
SAMSUNG ELECTRO-MECHANICS CO LTD
International Classes:
F16C33/10; F16C17/04; F16C17/26; F16C32/00; F16C33/08; H02K5/16; H02K7/08
Domestic Patent References:
1997-09-09
2008-10-09