The NTN 4T-JM511910PK is a genuine single row tapered roller bearing cone, engineered for high performance in demanding industrial, agricultural, and construction machinery. This precision component is designed to effectively manage both heavy radial and axial loads, ensuring reliable operation and extended service life. With a 50 mm bore diameter and a cone width of 23 mm, it is a critical part of a tapered roller bearing assembly, often paired with a JM511946 cup. Its robust construction provides durability and consistent performance under various operating conditions, with an overall bearing assembly outer diameter of 85 mm and total width of 23 mm.