1. Product Overview The NJ2218 is a single-row separable cylindrical roller bearing with double ribs on the inner ring and single rib on the outer ring, designed for heavy radial load scenarios with unidirectional axial load carrying capacity. It features a pressed steel cage for stable operation and reliable performance under medium-high speed working conditions.It is widely used in industrial gearboxes, motors, conveyors, mining equipment, pumps and metallurgical machinery