Patent ID: 7699528

Claim:
A dynamic bearing device comprising: a housing having one open end and the other end being closed; a bearing sleeve provided in the housing; a shaft member inserted into the bearing sleeve; and a sealing member for sealing the opening of the housing, wherein an end face of the sealing member abuts against an end face of the bearing sleeve, the dynamic bearing device being for retaining the shaft member and the bearing sleeve in a non-contact manner by a dynamic pressure effect of a lubricating fluid generated in a radial bearing gap between the shaft member and the bearing sleeve, wherein an outer circumference of the sealing member is bonded to an inner circumference of the housing so as to be fixed thereto, and a first tapered space for retaining an adhesive is interposed between the outer circumference of the sealing member and the inner circumference of the housing, wherein the first tapered space is open to the end face of the sealing member, and has a shape that is gradually enlarged toward the closed end of the housing, and wherein the end face of the sealing member is formed with a recessed portion adjacent the first tapered space such that the sealing member is separated away from the end face of the bearing sleeve in a radially inner side of the first tapered space.