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US 2010/0060095 A1Published application
Spindle motor and apparatus for inhibiting oil leakage in spindle motor
AssigneeLG Innotek Co., Ltd.
InventorJAE HYUN PARK
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Abstract
An apparatus for inhibiting oil leakage is disclosed by which the oil leakage can be effectively inhibited with a simple structure, where the apparatus is extensively formed along an outer periphery of a rotation shaft at a position higher than at least an upper end of a bearing and is formed with an oil barrier that restrains oil rise.
Claims15
An apparatus for inhibiting oil leakage in a spindle motor comprising:
- a bearing housing;
- a bearing press-fitted into the bearing housing and impregnated with oil;
- a rotation shaft rotatably installed inside the bearing;
- and an oil barrier continuously formed along a periphery of the rotation shaft at a position higher than at least an upper end of a bearing for inhibiting oil rising along the rotation shaft from leaking.
1 more element
A spindle motor, comprising:
- a bearing housing;
- a bearing press-fitted into the bearing housing and impregnated with oil;
- a rotation shaft rotatably installed inside the bearing;
- and an oil barrier coated with a coating material having a smaller surface energy than that of the oil, wherein the coating material is coated on a periphery of the rotation shaft along a radial direction of the rotation shaft for inhibiting oil from moving along the periphery of the rotation shaft.
1 more element
Dependencies are inferred from the claim text.