Timken 52400-3/52637D-3 Double Taper Roller Bearing Cone & Cup Discover exceptional performance and reliability with the Timken 52400-3/52637D-3 Double Taper Roller Bearing Cone & Cup. This high-quality bearing designed for industrial applications boasts a 4-inch inner diameter and a 6-3/8-inch outer diameter, ensuring a perfect fit for your machinery. Manufactured in the USA, this tapered roller bearing model (MPN: 52400-3/52637D-3) guarantees durability, efficiency, and optimal performance under load. Whether you are in the manufacturing or engineering sector, this new and open box bearing is essential for your project. Timken is renowned for its precision and reliability, making this bearing a trusted choice among professionals. We provide sameday shipping on all items, with the option for next-day shipping available at checkout. Our customer service team is here to help; if you cannot find the part you are looking for, please reach out to us, and we will assist you in sourcing it at competitive prices. Do not miss out on this vital component for your operational success. Order your Timken double taper roller bearing today!