| 摘要 |
<p>Provided is a sintered bearing for reducing resistance applied to a rotation shaft. The sintered bearing (1) according to the present invention comprises a first bearing unit (21) with a first bearing surface (21a) supporting an external circumference of a rotation shaft (10), a second bearing unit (22) with a second bearing surface (22a) supporting the external surface of the rotation shaft (10), and a middle unit (23) formed between the first bearing unit (21) and the second bearing unit (22). The inner diameter of the middle unit (23) is formed larger than the inner diameters of the first bearing unit (21) and the second bearing unit (22). And a plurality of dimples (d) are formed on bearing surfaces (21a, 22a) on at least one of the first bearing surface (21a) and the second bearing surface (22a).</p> |
