The NTN 4T-3982/3920 is a high-quality genuine tapered roller bearing designed for demanding applications. This bearing features an inner diameter of 50.8 mm, an outer diameter of 99.974 mm, and a width of 30.162 mm, ensuring precise fitment and reliable performance. Tapered roller bearings are engineered to accommodate both radial and axial loads, making them ideal for wheels, transmissions, and other heavy-duty machinery components. Manufactured by NTN, a leading global bearing supplier, this part guarantees durability and operational efficiency.