IC engine crankshaft bearing has ratios between clamped lengths of different parts of bearing corresponding to ratios of their different thermal expansion coefficients

摘要

The crankshaft bearing (1) has a bearing upper part (2) and a bearing cover (3) secured together via a bearing screws (4), with the ratios between the clamped length (5) of the bearing upper part and/or a screw sleeve (9) and the clamped length (6) of the bearing cover corresponding to the ratios between the different thermal expansion coefficients of the bearing screw and the bearing cover and the bearing upper part and the bearing screws.