Title:
軸受構造、モータ及びファン装置
Document Type and Number:
Japanese Patent JP5439991
Kind Code:
B2
Abstract:
A sleeve support portion is arranged to support a sleeve having a rotating shaft inserted therein such that the rotating shaft is rotatable. A plurality of ribs extending in an axial direction is provided on an inner surface of the sleeve support portion. The ribs are preferably spaced from each other in a circumferential direction centered on the rotating shaft, and arranged to make contact with at least a portion of the sleeve. The ribs include a plurality of types of ribs, each type of the ribs having a different axial position of an axial edge, on an axially opening portion side, of a contact surface thereof which is arranged to make contact with the sleeve.
Inventors:
Toyoshima Hiroyoshi
Koji Muraoka
Yoda Keito
Koji Muraoka
Yoda Keito
Application Number:
JP2009162471A
Publication Date:
March 12, 2014
Filing Date:
July 09, 2009
Export Citation:
Assignee:
Nidec Corporation
International Classes:
F16C35/067; H02K7/08
Domestic Patent References:
| JP2004263710A | ||||
| JP58077913A | ||||
| JP56083655A | ||||
| JP55046848A |
Foreign References:
| WO2005124171A1 |