Invention Grant
- Patent Title: Rotating apparatus with increased inner diameter of bearing hole opening
- Patent Title (中): 轴承孔开口内径增大的旋转装置
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Application No.: US14079112Application Date: 2013-11-13
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Publication No.: US08934196B2Publication Date: 2015-01-13
- Inventor: Mitsuo Kodama , Ryusuke Sugiki , Akira Aoi
- Applicant: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Applicant Address: JP Shizuoka
- Assignee: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Current Assignee: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Current Assignee Address: JP Shizuoka
- Agency: Blank Rome LLP
- Priority: JP2010-234705 20101019
- Main IPC: G11B17/02
- IPC: G11B17/02 ; H02K7/08 ; F16C32/06 ; G11B5/40 ; F16C33/74 ; G11B19/20 ; G11B5/55

Abstract:
A rotating apparatus includes a hub, a shaft housing portion having a center through-hole, and a base plate, having a base circular part that extends axially and with an inner surface thereof used as a bearing hole. Further included is a shaft with a cylindrical section housed in the through-hole, an extending section formed integrally with the cylindrical section and extending radially from a first end of the cylindrical section, and an annular section provided radially from a second end of the cylindrical section. Provided on the inner surface of the through-hole is a groove configured to generate radial dynamic pressure in lubricant. The rotatable rotor includes a portion encircling at least part of the annular section. An opening of the bearing hole surrounds a part of the shaft housing portion, the extending section inserted and fixed into the opening, with a hardening resin interposed therebetween.
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