This front hub outer bearing is a tapered roller bearing installed in the truck front wheel hub. It withstands radial and axial loads simultaneously, supporting axle weight and ensuring smooth wheel rotation on off-road and heavy-duty working conditions. Constructed from premium bearing steel and processed by precision heat treatment, it features high hardness, outstanding wear resistance and fatigue resistance. Tight control of internal clearance keeps stable operation under heavy loads. Each bearing passes dimensional inspection and rotational performance testing before shipment. It fixes hub abnormal noise and bearing overheating faults, acting as a critical replacement spare part for truck chassis overhaul.