| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase a withstanding load property of an aluminum bearing, by satisfying a prescribed condition in connecting strength of a connection interface, so as to suppress an interlayer slide generated between a bearing alloy and a back plate in the case of repeatedly applying a high load. SOLUTION: By assuming T for maximum thickness of a pure aluminum connection layer 3, Rmax for maximum height of a surface of a back plate 4 and WEM for maximum waviness of a rolling surface, at least one condition of T<Rmax and T<WEM is satisfied. In this way, without traversing shearing stress in a single layer formed of pure aluminum, a structure, meshing a layer of bearing alloy 2 with irregularity of the back plate 4 that makes difficult to slide, is obtained. Thus a slide is generated in the pure aluminum connection layer 3, a tendency generating shearing stress is provided, but in a circumferential direction, by meshing the bearing alloy 2 with irregularity of the back plate 4 through the connection layer 3, shearing stress acting in the connection layer 3 is relaxed, and destruction of the connection layer 3 is suppressed, so as to ensure also connection of the back plate 4 to the bearing alloy 2 by pure aluminum.</p> |
