Patent ID: 8776377
Filing Date: 2014-07-15
Classification: F16C,Y10T

Abstract:
1. A method for manufacturing a fluid dynamic bearing, the fluid dynamic bearing comprising: a storage region formed between a stator and a rotor; and a lubricant injected into the storage region, wherein the storage region has an entrance space as a gap where the rotor faces the stator, a middle of the entrance space including an interface where the lubricant sits when the rotor rotates with respect to the stator, and wherein the fluid dynamic bearing rotatably supports the rotor with respect to the stator by a dynamic pressure generated in the lubricant, the method including the steps of: preparing the fluid dynamic bearing that lubricant is not injected into in a predetermined work space; reducing the pressure in the work space; moving a nozzle that delivers the lubricant towards an inside of the entrance space so that a tip of the nozzle is inserted into the entrance space; delivering the lubricant in the storage region in an amount such that the lubricant does not spill over from the storage region and that immerses the tip of the nozzle; and restoring pressure in the work space.