What is the Principle of a Transfer Case?

[VanAlessandra]

The principle of a transfer case: All shafts of the transfer case are supported by two tapered roller bearings, and the bearing tightness is adjusted with corresponding shims. In vehicles equipped with a transfer case, when driving with all wheels on uneven roads or curves, or when the front and rear drive wheels have unequal radii due to tire wear, it will lead to engine power consumption, tire wear, or wear of drivetrain components. To overcome this drawback, the torque is roughly distributed to each drive axle based on the axle load ratio. Some transfer cases are also equipped with an asymmetric planetary gear inter-axle differential with a differential lock. The function of the transfer case is: In multi-axle drive vehicles, a transfer case is installed to distribute the output power to each drive axle. Transfer cases generally have high and low ranges to further expand the gear ratio and the number of gears when driving in difficult terrain.