The NTN 4T-18685/18620 is a high-quality tapered roller bearing designed for applications requiring robust load-carrying capacity and precise rotational accuracy. This genuine NTN bearing features a single-row design, comprising a cone (inner ring) assembly and a cup (outer ring). Tapered roller bearings are engineered to accommodate both radial and axial loads, making them ideal for wheels, transmissions, and industrial machinery. Manufactured to NTN's stringent standards, this bearing ensures durability and efficient operation in demanding environments.