Two Failure Possibilities: Causes of Truck Front Wheel Heat

Firstly, there are two possible reasons for the front wheel hub to heat up, one is the hub (axle head), and the other is caused by the heating of the brake drum.

Overheating of the wheel hub: It may be caused by excessive tightness or abnormal wear of the bearings.

The wheel hub is located inside the brake drum, which is the part where the bearing is installed and can be seen after disassembly. The high temperature of the wheel hub is usually caused by excessive bearing assembly tightness or poor lubrication. Excessive temperature can cause the lubricating grease inside to melt and flow out, affecting the braking performance and potentially causing bearing damage. Generally speaking, a temperature increase of up to 50 degrees Celsius above the ambient temperature is considered normal.

Brake drum overheating：

The brake drum, where you measure the temperature with a thermometer, will generate heat whenever the brakes are applied. It is the area with the highest heat generation in the front wheels. The temperature of the brake drum is influenced by factors such as ambient temperature, driving speed, number of brake applications, vehicle weight, and road conditions.

If the brake drum is overheating, you can jack up the front wheels of the vehicle and rotate the tires to check if they rotate freely. Then, rotate the tires again while applying the brakes a few times to see if the brakes release quickly and completely.

If the tires do not rotate freely, it indicates interference inside the brake drum. If the brakes do not release or release slowly, it indicates a problem with the braking system. In such cases, it is advisable to promptly seek assistance from a certified repair shop or dealership.