Imbalance shaft i.e. casting shaft, for balancing e.g. mass force, of internal combustion engine, has interior path that is interrupted within imbalance shaft opposing peripheral region of bearing portion on circumference

摘要

The shaft (1) has imbalance portions (4) for generation of imbalance direction and a bearing portion (6) assembled with bushes i.e. seamless sleeves that form an interior path (7) in a radially superimposed rolling bearing in an internal combustion engine. The interior path is interrupted within the imbalance shaft opposing a peripheral region of the bearing portion on circumference. The interior path is symmetrically extending to the imbalance direction with circumferential angle.