Full-floating bearing and turbocharger including the same

摘要

A full-floating bearing for reducing vibration of a shaft of a turbocharger has a central axis and includes an outer surface and an inner surface. The outer surface is configured to face away from the central axis. The inner surface is configured to face the central axis and is radially spaced from the outer surface such that the inner surface is configured to be disposed between the central axis and the outer surface. An aperture is defined between the outer surface and the inner surface and configured to allow lubricant to flow between the outer surface and the inner surface. The inner surface has a surface profile for reducing vibration of the shaft of the turbocharger. The surface profile is defined by the equation Ro=Rb+A Sin(3θ+Φ).