The NKX Series represents a type of Needle Roller Combination Bearing. This design integrates a needle roller and cage assembly (radial bearing) with a thrust bearing component (typically a thrust ball bearing or angular contact element) into a single, compact unit. The "X" suffix often indicates a specific design variant or a manufacturer's proprietary configuration. The primary function of this combination is to simultaneously support high radial loads (handled by the needle rollers) and axial loads (handled by the thrust component). This integrated solution saves significant axial and radial space compared to using two separate bearings, simplifies the surrounding design, and ensures precise alignment of the bearing components. It is engineered for applications with compact design constraints and combined loading conditions.
