For a motor having liquid lubricated bearing surface(s), aspects include
providing a column shaped Capillary Seal (CS) for storing and supply
lubricating liquid to the bearing surface(s). The column shaped CS may
have a cross-section substantially topologically equivalent to a circle.
Aspects include disposing the column shaped CS between relatively
rotational motor members or between relatively irrotational motor
members. Other aspects include disposition of the column shaped CS in a
spiral shape where one opening of the CS fluidicly communicates with the
bearing surface and another opening vents to a gas environment. Still
other aspects include disposing the column shaped CS circumferentially on
surfaces of generally cylindrical shaped motor members. Such surfaces may
oppose a second surface that is one of relatively rotational and
relatively irrotational vis the surface. The column shaped CS may
circumscribe an axis of a rotating member or may be disposed parallel to
the axis of the rotating member.