Abstract
Recent engine bearings have been operating under harsh conditions. Consequently, wear propagates for a short time and fatigue sometimes occurs on the bearings. On the rig test machine, the operating conditions of engine bearing were simulated to reproduce the bearing damage. The bearing wear was measured until a fatigue crack occurred. The bearing wear increased at the edges of the bearing length and the crack was also observed near the edges. The experimental results were compared to the calculated results based on the elastohydrodynamic lubrication (EHL) theory. The correlations between the bearing damage and bearing performance by theoretical analysis were investigated.
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