荷重を片持ち支持するすべり軸受における軸受形状による負荷特性

（真円軸受と二円弧軸受の比較）

抄録

In this work, the load carrying capacity of journal bearing that supporting an overhang load was experimentally investigated with custom-made bearing test rig. In the experiments, the load carrying capacity was defined as transition load that lubrication regime changed from a hydrodynamic to a mixed lubrication. To evaluate the effect of bearing type on the load carrying capacity, two type bearings, circular and two-lobe bearings, were adopted and compared in terms of the load carrying capacity. As a result, the load carrying capacity of two-lobe bearing was changed by preload factor that is a geometrical parameter of two-lobe bearing. When the preload factor was suitable value, the load carrying capacity of two-lobe bearing increased 30% rather than circular bearing. Numerical verification was also conducted, and the tendency of numerical results based on the Reynolds equation were consistent qualitatively with those of experiment.