A bearing apparatus comprising: an angular contact ball bearing including a fixed ring , a rotation ring , a plurality of rolling elements , and a cage , the fixed ring having a first raceway surface , the rotation ring being disposed to be separated from the first raceway surface in a radial direction of the fixed ring , the rotation ring having a second raceway surface , each of the plurality of rolling elements being disposed between the first raceway surface and the second raceway surface to have an contact angle with respect to each of the first raceway surface and the second raceway surface , the cage being configured to hold the plurality of rolling elements ; a fixed ring spacer adjacent to the fixed ring in an axial direction of the angular contact ball bearing ; a rotation ring spacer adjacent to the rotation ring in the axial direction, the rotation ring spacer being disposed to be separated from the fixed ring spacer in the radial direction; and a supply portion disposed between the fixed ring spacer and the rotation ring spacer , the supply portion being configured to supply lubricating oil to a clearance between the cage and the fixed ring , wherein the supply portion includes a nozzle having a discharge port disposed in the clearance, the discharge port being configured to discharge the lubricating oil, the fixed ring is provided with a groove portion formed adjacent to the first raceway surface , the groove portion being along a circumferential direction of the fixed ring , wherein the one end of nozzle insertion recess is formed inside the groove portion , characterized in that the groove portion is formed at a side, at which the contact angle is formed, in the axial direction, and in that the discharge port is disposed inside the groove portion . an angular contact ball bearing including a fixed ring , a rotation ring , a plurality of rolling elements , and a cage , the fixed ring having a first raceway surface , the rotation ring being disposed to be separated from the first raceway surface in a radial direction of the fixed ring , the rotation ring having a second raceway surface , each of the plurality of rolling elements being disposed between the first raceway surface and the second raceway surface to have an contact angle with respect to each of the first raceway surface and the second raceway surface , the cage being configured to hold the plurality of rolling elements ; a fixed ring spacer adjacent to the fixed ring in an axial direction of the angular contact ball bearing ; a rotation ring spacer adjacent to the rotation ring in the axial direction, the rotation ring spacer being disposed to be separated from the fixed ring spacer in the radial direction; and a supply portion disposed between the fixed ring spacer and the rotation ring spacer , the supply portion being configured to supply lubricating oil to a clearance between the cage and the fixed ring , wherein the supply portion includes a nozzle having a discharge port disposed in the clearance, the discharge port being configured to discharge the lubricating oil, the fixed ring is provided with a groove portion formed adjacent to the first raceway surface , the groove portion being along a circumferential direction of the fixed ring , wherein the one end of nozzle insertion recess is formed inside the groove portion , characterized in that the groove portion is formed at a side, at which the contact angle is formed, in the axial direction, and in that the discharge port is disposed inside the groove portion . <EOS>