The SKF RNA 4824 is a high-precision Needle Roller Bearing designed specifically for applications requiring high load capacity in minimal radial space. This particular series, designated 'RNA' (Needle Roller Assembly), is supplied without an inner ring, meaning the hardened and ground shaft surface acts as the inner raceway. This design significantly reduces the cross-sectional height, enabling the bearing to support extremely heavy dynamic and static radial loads relative to its size. The RNA 4824 features a robust pressed steel cage that accurately guides the optimized profile rollers, ensuring smooth rotation, minimized friction, and superior stress distribution across the contact area, making it ideal for continuous, high-duty cycles.
Optimized for reliability and durability in demanding industrial environments such as gearboxes, agricultural machinery, large pumps, and heavy lifting equipment, the RNA 4824 provides exceptional operational stiffness and extended service life. By eliminating the inner ring, the overall cost of the bearing assembly can be reduced, provided the adjacent shaft is adequately hardened and finished. Choosing SKF ensures you receive world-class manufacturing tolerances, reduced maintenance needs, and reliable performance even when subjected to shock loads and frequent start/stop conditions, maximizing uptime for critical machinery.
Key Features
Minimal Radial Section Height: Excellent load capacity for applications constrained by space.
High Static and Dynamic Load Ratings: Engineered to withstand heavy shock loads and continuous high-duty operation.
Cost-Effective Design: Eliminates the inner ring, utilizing the shaft as the raceway (requires hardened shaft surface).
Optimized Roller Profile: Reduces edge stresses, enhancing bearing life and reliability.
