The invention provides a hydrodynamic bearing device with a function of
circulating the operating fluid by supplying the operating fluid to
between the cover and the sleeve by way of a circular communication path,
the hydrodynamic bearing device allowing the cover for covering the
sleeve to be satisfactorily bonded, preventing the operating fluid from
leaking outward, and preventing the adhesive from blocking the opening of
the circular communication path; and a spindle motor. An adhesive inflow
allowing space for allowing the adhesive from the adhesive setting and
bonding part to flow in is formed between the adhesive setting and
bonding part for setting the adhesive and bonding the cover and the
sleeve, and a space region on the open end side between the cover and the
sleeve for circulating and introducing the operating fluid so as to
create a space in the cover.