To provide a fluid dynamic pressure bearing assembly and a motor including the same.

A motor may include a fluid dynamic pressure bearing assembly having a shaft and a sleeve in which the shaft is fitted rotatably, and a bearing gap formed between the sleeve and the shaft is filled with oil, and the sleeve is provided with a communication hole to put the bearing gap in communication with the outside, wherein the communication hole is sealed by an gas-liquid separating means which passes through a gas and shuts off a liquid.