HYDRODYNAMIC BEARING ASSEMBLY

摘要

A hydrodynamic bearing assembly includes a bearing ( 10 ) with at least an end thereof being opened and a shaft ( 38 ) rotatably disposed in the bearing. A bearing clearance is formed between an outer surface of the shaft and an inner surface of the bearing and is filled with lubricant. A plurality of lubricant pressure generating grooves ( 14 ) are axially set on at least one of the inner surface of the bearing and the outer surface of the shaft. Each of the lubricant pressure generating grooves includes two symmetrical branches ( 141, 142 ) and has a V-shaped cross section.