Sinotruk Howo Truck Parts-AZ190003326236 Rear Axle Gearbox Bearing (Main Gear)

Description

AZ190003326236 main gear bearing is a heavy-duty rolling bearing for the main reducer of Sinotruk Howo heavy truck rear axle. It is installed on the main drive gear shaft of the rear axle gearbox, serving as the rotary support for the main gear and bearing huge radial and axial loads during power transmission. Adopting high-quality bearing steel and advanced heat treatment plus precision raceway grinding technology, the bearing has high hardness, good wear resistance and strong contact fatigue resistance. It can withstand large torque, periodic impact and vibration caused by heavy load climbing, overloading and rough road conditions. The bearing ensures stable rotation of the main gear, maintains the correct gear meshing clearance, reduces friction heat generation, and prevents premature failure of the rear axle main transmission system. Each bearing undergoes strict dimension inspection, rotation flexibility test, noise test and load fatigue test before delivery, effectively avoiding common defects such as overheating, abnormal noise, roller pitting and seizure. It is an indispensable replacement part for rear axle overhaul. We maintain sufficient inventory and stable bulk supply for repair workshops, fleet operators, auto spare parts dealers and global cross-border export customers.