Patent ID: 8365413
Filing Date: 2013-02-05
Classification: F01M,F16C,G11B,Y10T

Abstract:
1. A method of manufacturing a fluid dynamic bearing that uses an apparatus for manufacturing a fluid dynamic bearing comprising a housing portion configured to define a first work area, a vacuum pump configured to discharge air in the first work area, a lubricant discharge device arranged in the first work area so as to discharge a lubricant into an inlet of a reservoir for storing the lubricant of the fluid dynamic bearing, at least one aperture provided in the housing portion, a first door configured to close the aperture, and a second door configured to close the aperture, in which, between the first door and the second door, when both have closed the aperture, a second work area is formed where the fluid dynamic bearing is placed, the method comprising: closing the aperture by the first door; arranging the fluid dynamic bearing in the second work area; closing the second door; introducing the fluid dynamic bearing into the first work area, depressurized by the vacuum pump, immediately after the first door is opened; discharging, by the lubricant discharging device, the lubricant into the inlet of the reservoir for storing the lubricant of the fluid dynamic bearing; moving the fluid dynamic bearing from the first work area to the second work area; closing the aperture by the first door; and putting air into the second work area to draw the lubricant into the reservoir for storing the lubricant of the fluid dynamic bearing wherein the second work area is sized in accordance with the fluid dynamic bearing and formed to be smaller in volume than the first work area.