A fluid dynamic bearing device, comprising: an outer member having a radial bearing surface and thrust bearing surfaces (22T, 23T) respectively formed on both axial sides of the radial bearing surface; and an inner member arranged on an inner diameter side with respect to the outer member and having a radial bearing surface and thrust bearing surfaces (12T, 13T) respectively facing the radial bearing surface of the outer member and the thrust bearing surfaces (22T, 23T) of the outer member, the radial bearing surface of the outer member and the radial bearing surface of the inner member forming a radial bearing gap therebetween, one of the thrust bearing surfaces of the outer member and one of the thrust bearing surfaces of the inner member forming one thrust bearing gap therebetween, another of the thrust bearing surfaces of the outer member and another of the thrust bearing surfaces of the inner member forming another thrust bearing gap therebetween, the radial bearing gap and the thrust bearing gaps (T, T) having a lubricating oil interposed therein, wherein the outer member comprises a first outer member and a second outer member formed by a pressing process on a plate member, and wherein at least a part of the inner member, which forms the radial bearing surface and the thrust bearing surfaces (12T, 13T) of the in ner member, is made of a sintered metal characterized in that each of the first outer member and the second outer member comprise a cylindrical portion (20a1, 20b1) and a radial portion (20a2, 20b2) provided along one end of the cylindrical portion (20a1, 20b1), the one of the thrust bearing surfaces being formed on an inside surface of the radial portion (20a2) of the first outer member, the radial bearing surface being formed on an inner peripheral surface of the cylindrical portion (20b1) of the second outer member, the another of the thrust bearing surfaces being formed on an inside surface of the radial portion (20b2) of the second outer member, wherein an outer peripheral surface of the cylindrical portion (20b1) of the second outer member is fitted to an inner peripheral surface of the cylindrical portion (20a1) of the first outer member. an outer member having a radial bearing surface and thrust bearing surfaces (22T, 23T) respectively formed on both axial sides of the radial bearing surface; and an inner member arranged on an inner diameter side with respect to the outer member and having a radial bearing surface and thrust bearing surfaces (12T, 13T) respectively facing the radial bearing surface of the outer member and the thrust bearing surfaces (22T, 23T) of the outer member, the radial bearing surface of the outer member and the radial bearing surface of the inner member forming a radial bearing gap therebetween, one of the thrust bearing surfaces of the outer member and one of the thrust bearing surfaces of the inner member forming one thrust bearing gap therebetween, another of the thrust bearing surfaces of the outer member and another of the thrust bearing surfaces of the inner member forming another thrust bearing gap therebetween, the radial bearing gap and the thrust bearing gaps (T, T) having a lubricating oil interposed therein, the radial bearing surface of the outer member and the radial bearing surface of the inner member forming a radial bearing gap therebetween, one of the thrust bearing surfaces of the outer member and one of the thrust bearing surfaces of the inner member forming one thrust bearing gap therebetween, another of the thrust bearing surfaces of the outer member and another of the thrust bearing surfaces of the inner member forming another thrust bearing gap therebetween, the radial bearing gap and the thrust bearing gaps (T, T) having a lubricating oil interposed therein, wherein the outer member comprises a first outer member and a second outer member formed by a pressing process on a plate member, and wherein at least a part of the inner member, which forms the radial bearing surface and the thrust bearing surfaces (12T, 13T) of the in ner member, is made of a sintered metal each of the first outer member and the second outer member comprise a cylindrical portion (20a1, 20b1) and a radial portion (20a2, 20b2) provided along one end of the cylindrical portion (20a1, 20b1), the one of the thrust bearing surfaces being formed on an inside surface of the radial portion (20a2) of the first outer member, the radial bearing surface being formed on an inner peripheral surface of the cylindrical portion (20b1) of the second outer member, the another of the thrust bearing surfaces being formed on an inside surface of the radial portion (20b2) of the second outer member, the one of the thrust bearing surfaces being formed on an inside surface of the radial portion (20a2) of the first outer member, the radial bearing surface being formed on an inner peripheral surface of the cylindrical portion (20b1) of the second outer member, the another of the thrust bearing surfaces being formed on an inside surface of the radial portion (20b2) of the second outer member, wherein an outer peripheral surface of the cylindrical portion (20b1) of the second outer member is fitted to an inner peripheral surface of the cylindrical portion (20a1) of the first outer member.