Spindle device
AssigneeNtn Corporation
InventorTeruyoshi HORIUCHI
Life of this patent
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Abstract
A spindle device includes: a rotation shaft; a bearing housing having a cylindrical shape extending in a direction of a center axis of the rotation shaft; a bearing attached to an inner peripheral surface of the bearing housing and rotatably supporting the rotation shaft; and a first elastic member. A first flow path and a second flow path are formed inside the bearing housing, each of the first flow path and the second flow path extending in a direction of a center axis of the bearing housing. A first groove is formed in an outer peripheral surface of the bearing housing, the first groove extending in a peripheral direction of the bearing housing, the first groove being connected to the first flow path and the second flow path. The first elastic member closes an opening of the first groove.
Claims8
A spindle device comprising:
- a rotation shaft;
- a bearing housing having a cylindrical shape extending in a direction of a center axis of the rotation shaft;
- a bearing attached to an inner peripheral surface of the bearing housing and rotatably supporting the rotation shaft;
- and
- a first elastic member, wherein
- a first flow path and a second flow path are formed inside the bearing housing, each of the first flow path and the second flow path extending in a direction of a center axis of the bearing housing,
- a first groove is formed in an outer peripheral surface of the bearing housing, the first groove extending in a peripheral direction of the bearing housing, the first groove being connected to the first flow path and the second flow path, and
- the first elastic member closes an opening of the first groove.
Dependencies are inferred from the claim text.