Patent ID: 8387584
Filing Date: 2013-03-05
Classification: F16C,F16F,Y10T

Abstract:
1. An unbalanced shaft for compensating at least one of mass forces or mass moments of inertia of an internal combustion engine, the shaft comprising a shaft section and a bearing journal axially adjacent to the shaft section, the bearing journal comprising a fully cylindrical outer peripheral surface serving as an inner raceway for rolling elements of a rolling bearing and the bearing journal having a multi-piece configuration, so that both the shaft section and the bearing journal possess a mass center of gravity that, for producing a shaft unbalance, extends eccentric to an axis of rotation of the unbalanced shaft, and for supplying lubricant to the inner raceway and the rolling elements, an oil channel extends radially outwards through the bearing journal, and relative to the mass center of gravity of the bearing journal, the oil channel opens on another side, situated beyond the axis of rotation, on the outer peripheral surface.