Patent ID: 8542459
Filing Date: 2013-09-24
Classification: F16C,G11B,H02K

Abstract:
1. A motor comprising: a stationary portion including a stator; and a rotating portion including a rotor magnet, and rotatably supported by the stationary portion through a lubricating oil; wherein the stationary portion includes: the rotating portion includes: the lower surface of the upper thrust portion and an upper surface of the sleeve portion are arranged to together define an upper thrust gap therebetween, the lubricating oil is located in the upper thrust gap, the outer circumferential surface of the upper thrust portion and an inner circumferential surface of the tubular portion are arranged to together define an upper seal portion therebetween, the upper thrust gap is arranged to be in communication with the upper seal portion, and the upper seal portion includes a surface of the lubricating oil located therein; the seal cap includes: the tubular portion includes: the first tubular portion upper surface includes an oil-repellent film region covered with an oil-repellent film; and the first tubular portion upper surface and the first seal cap lower surface are arranged to together define a substantially annular radially extending gap therebetween.