1228F552
Cylindrical Roller Bearing 72 mm OD
Meritor

Outer race for a cylindrical roller bearing with an exact 72 mm outer diameter, designed to support heavy radial loads with high stiffness and long life. Precision machining ensures roundness and concentricity, enabling smooth rolling contact with the corresponding inner race and rollers. The bearing assembly resists misalignment and reduces friction, heat, and wear during aggressive acceleration, cornering, and braking. The outer race integrates with seals and lubrication interfaces to maintain lubricant retention and contamination exclusion over extended service intervals. In heavy-duty axles and gearboxes, this component contributes to quiet operation, predictable performance, and durable operation under demanding duty cycles. Proper fit and lubrication alignment are crucial for maximizing bearing life and minimizing downtime in fleet operations.