NATIONAL 415043 Heavy Duty Tapered Roller Bearing Set - High Precision Industrial Grade

The NATIONAL 415043 Tapered Roller Bearing is engineered to manage extreme combined radial and axial loads typical in demanding industrial and automotive applications. This precision-matched cup and cone set utilizes high-strength, through-hardened steel races and case-carburized rollers, ensuring maximum fatigue life under constant stress. The geometrically optimized tapered design provides superior load distribution, crucial for applications such as heavy-duty vehicle wheel ends, gearboxes, differentials, and various non-standard industrial machinery where precise shaft alignment and high thrust capability are mandatory. Built to strict ABEC tolerances, this bearing minimizes rotational friction and operational heat, contributing directly to reduced energy consumption and improved overall mechanical efficiency. As a Senior Product Manager, I recommend the NATIONAL 415043 for operators seeking a robust, reliable replacement or OEM component that guarantees extended service intervals. The robust construction ensures exceptional performance in contaminated or high-vibration environments. The NATIONAL brand commitment guarantees that this bearing meets or exceeds all relevant industry standards for dimensional accuracy and load rating. Selecting the 415043 ensures maximum uptime, predictable performance, and a significant reduction in total cost of ownership (TCO) compared to standard-grade components.

Key Features

• High-Capacity Load Rating: Designed specifically to handle simultaneous heavy radial and axial (thrust) loads.
• Precision Geometry: Optimized roller and raceway profile minimizes stress concentration and extends bearing life.
• Through-Hardened Steel: Ensures superior wear resistance and fatigue strength under high torque conditions.
• Reduced Friction: Precision surface finishing lowers operating temperature and improves energy efficiency.
• Brand Reliability: NATIONAL quality assurance guarantees dimensional consistency and reliability, meeting strict OEM replacement standards.
• Wide Operating Temperature Range: Suitable for extreme industrial environments.

Technical Specifications