Bearing cap, internal combustion engine, and method for manufacturing internal combustion engine

The invention provides a bearing cap, an internal combustion engine and a manufacturing method of the internal combustion engine. A bearing cap according to one embodiment of the present disclosure is provided with: a recess for supporting a crankshaft of an internal combustion engine; first convex parts disposed on both sides of the concave part and provided with first bolt holes; and a second boss disposed on both sides of the bearing cap main body with the bearing cap main body having the recess and the first boss interposed therebetween, and provided with a second bolt hole. The bearing cap is fixed to a first member of the internal combustion engine by a first bolt inserted into the first bolt hole, and is fixed to a second member of the internal combustion engine by a second bolt inserted into the second bolt hole, and the rigidity of the at least one pair of second protrusions is higher than the rigidity of the frame. 本公开提供轴承盖、内燃机及内燃机的制造方法。本公开的一方式的轴承盖具备：凹部，支承内燃机的曲轴；第1凸起部，配置于凹部的两侧，设置有第1螺栓孔；及第2凸起部，夹着具有凹部