Patent ID: 8398307

Claim:
A bearing device comprising: a bearing fixing base being fixedly joined with a tubular support which extends from the fixing base and has an open end; a hub being fixedly joined with a rotor spindle which extends into the tubular support and rotates with respect to the tubular support; an oil seal bush with a reduced-diameter end being disposed between the spindle and the tubular support with a receiving clearance being defined between the reduced-diameter end of the oil seal bush and the tubular support; a ring-shaped oily felt being disposed in the receiving clearance and sandwiched between the tubular support and the oil seal bush; a cap seal having an annular side fixedly joined to the inner surface of the open end of the tubular support and a cone-shaped side extending from the annular side to another end of the oil seal bush; wherein the oily felt is disposed next to the bearing fixing base to be opposite to the cap seal disposed at the open end of the tubular support to supply lubrication oil to lubricate the oil seal bush.