The advantage of widening freight track is to increase the safety factor and load capacity, and the disadvantage is to increase the load capacity of engine, gearbox and rear axle. The rear axle is designed with a wide rail to form a better match with the car body, so as to avoid the occurrence of "carrying pole car" and affect the transportation safety. The interior is more beautiful and practical.
After changing the bridge, as long as there is no noise, it is enough to ensure the normal rotation of the gear, and most of the cases have little to do with it. The rear axle of an automobile refers to the rear wheel of an automobile. The upper bridge, if the car is front-driven, the rear axle of the car is just a drive shaft.
It only plays a bearing role on the car. Front axle and rear axle refer to front axle and rear axle. The front axle includes damping spring, steering gear, balance shaft, etc. The rear axle includes a transmission shaft and a transmission gear. Working principle of rear axle.
The engine transmits power to the gearbox, and the gearbox transmits speed to the large toothed disc of the rear axle. When the car is in a straight line, the state of the rear axle will not change.