FLUID DYNAMIC BEARING MOTOR FOR USE WITH A RANGE OF ROTATIONAL SPEED RATED DISC DRIVE MEMORY DEVICE PRODUCTS

FLUID DYNAMIC BEARING MOTOR FOR USE WITH A RANGE OF ROTATIONAL SPEED RATED DISC DRIVE MEMORY DEVICE PRODUCTS

PURPOSE: A fluid dynamic bearing device used together with disk drive memory device products with revolutions per minute (RPM) regularity in a fixed range is provided to be used for reducing production costs of 2.5 inch notebook products which are marked as standard performance products with 5400 RP...

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Hauptverfasser: AIELLO ANTHONY J, LIM POHLYE, WOLDEMAR CHRIS M, YAP POWMING, FLORES GREGOR PACO, HOON WEIRHEN S, JING CHUNHUNG D
Format: Patent
Sprache:eng ; kor
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator AIELLO ANTHONY J
LIM POHLYE
WOLDEMAR CHRIS M
YAP POWMING
FLORES GREGOR PACO
HOON WEIRHEN S
JING CHUNHUNG D
description PURPOSE: A fluid dynamic bearing device used together with disk drive memory device products with revolutions per minute (RPM) regularity in a fixed range is provided to be used for reducing production costs of 2.5 inch notebook products which are marked as standard performance products with 5400 RPM or high performance products with 7200 RPM. CONSTITUTION: A fluid dynamic bearing device includes a static unit, a rotatable unit, and a fluid dynamic bearing. The static unit comprises a first stator or a second stator, and the first stator includes more coils than the second stator. The first stator includes a sleeve (204) and a static winding unit (211) which adhere to a base (220). The rotatable unit includes a shaft (202) and a hub (210). The fluid dynamic bearing is formed by the static unit and the rotatable unit.
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title FLUID DYNAMIC BEARING MOTOR FOR USE WITH A RANGE OF ROTATIONAL SPEED RATED DISC DRIVE MEMORY DEVICE PRODUCTS
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