Shaft i.e. balancing shaft, manufacturing method for internal combustion engine of motor vehicle, involves molding material between wheel and pinion, where material has modulus five times lower than that of material used to produce shaft

摘要

The method involves performing immobilization of a pinion (18) and a wheel (20) with respect to each other inside a mold (60). A flexible material (22) i.e. elastomer material, is molded between the wheel and the pinion for joining the pinion and the wheel, where the flexible material has a young modulus five times lower than that of a material used to produce a shaft i.e. balancing shaft. An assembly of the pinion and the wheel is assembled on the shaft in a single stage by bracing. The wheel is radially extended around a periphery of the shaft.