This 220149 front inner wheel bearing (HM220149/10 tapered roller bearing) is a key hub component for heavy truck axle. It bears radial and axial combined loads, supports wheel weight and ensures smooth wheel rotation during steering and running. Adopted high-grade bearing steel, through heat treatment, high hardness, strong load capacity and wear resistance. Separable inner ring, roller and cage design for convenient assembly and replacement. Each bearing undergoes dimension, hardness and clearance inspection before shipment. It is an essential replacement spare part for heavy truck wheel hub maintenance.