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US 2010/0244601 A1Published application
Fluid dynamic bearing device
AssigneeNtn Corporation
InventorsKazuto Shimizu, Tetsuya Yamamoto
Life of this patent
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Abstract
Provided is a fluid dynamic bearing device, which fixes a lid member (10) to a bracket (6) or forms the lid member (10) and the bracket (6) integrally so that the bracket (6) exerts the release resistance of the lid member (10). As a result, the fluid dynamic bearing device can alleviate a fixing force required between a housing (7) and the lid member (10) or can make their fixture unnecessary, to thereby maintain the release resistance of the lid member (10) irrespective of a material of the housing (7).
Claims5
A fluid dynamic bearing device, comprising:
- an outer member that is fixed to an inner peripheral surface of a bracket, and is opened on axial both sides thereof;
- a lid member that closes a one end-side opening portion of the outer member;
- a shaft member housed on an inner periphery of the outer member;
- and
- a radial bearing gap allowing an outer peripheral surface of the shaft member to face thereto,
- wherein the lid member is fixed to the bracket.
3 more elements
A fluid dynamic bearing device, comprising:
- an outer member that is fixed to an inner peripheral surface of a bracket, and is opened in axial both ends thereof;
- a lid member that closes a one end-side opening portion of the outer member;
- a shaft member housed on an inner periphery of the outer member;
- and
- a radial bearing gap allowing an outer peripheral surface of the shaft member to face thereto,
- wherein the lid member and the bracket are formed integrally with each other.
3 more elements
Dependencies are inferred from the claim text.