| 摘要 |
A bearing device is presented, by which it is possible to rotate a rotation shaft of a motor smoothly at a constant speed without impairing its characteristics even when a load is applied on the rotation shaft from a given direction as when the device is incorporated in video equipment. The bearing device includes a holder designed in a cylindrical shape, a collar unit extending in a peripheral direction near a first end in an axial direction of the holder, fixing units and mounting units alternately arranged along the circumference of an outer peripheral portion of the collar unit. Also included are engaging sectors of bearing bodies on each of a first end and a second end of a bearing bore of the holder. An annular groove formed in the axial direction from the first end is provided on an outer periphery of the holder so that the thickness of the peripheral wall forming the engaging unit on the first end of the holder will be uniform over the entire periphery.
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