The invention discloses a bearing apparatus comprising two bearings fixed to a shaft, the bearing including: an outer ring having an outer raceway formed in an inner peripheral surface thereof; an inner ring having an inner raceway formed in an outer peripheral surface thereof; a crown-shaped retainer interposed between the outer and inner rings so as to be rotated with respect to the outer and inner rings; and a plurality of balls rotatably held in a plurality of pockets formed in the crown-shaped retainer, wherein a preload is applied to an retainer opening side of the inner ring of the two bearings and an retainer counter-opening side of the outer ring of the two bearings. In the bearing apparatus composed of two bearings, each bearing contains a crown-shaped retainer and lubricant is added in the raceway formed inside of the two bearings. The preload is applied not only from the retainer jacket opening sides to the inner ring end face but also from the retainer jacket counter-opening sides to the outer ring end face. |