What is installed on the front axle of a forklift to manage the difference in wheel rotation speeds?

The correct choice is the differential gear device, which plays a vital role in managing the rotation speeds of the wheels on the front axle of a forklift. Forklifts often do tight turns, and during these maneuvers, the wheels on the outside of the turn must rotate faster than those on the inside. The differential gear allows for this difference in speed by splitting the torque between the left and right wheels, enabling smoother turns and preventing tire wear.

In contrast, the transmission gear is responsible for controlling the speed and torque of the forklift’s engine but does not directly address the rotation speed differences of the wheels. The drive shaft transmits power from the engine to the wheels but does not provide the flexibility needed for varying wheel speeds during turns. The wheel assembly comprises components such as the wheels and tires themselves but doesn’t involve any mechanism that allows for differential rotation speeds. Thus, the differential gear device is uniquely suited for this function, facilitating safe and efficient operation of the forklift during various driving conditions.