SKF Self-Aligning Ball Bearing 2 Row, Tapered Bore, 55 mm ID, 120 mm OD, Open End, Steel, Sheet Metal Cage 2311 K

This bearing features two rows of steel balls, providing enhanced load capacity and durability. The common sphered raceway in the outer ring and deep uninterrupted raceway grooves in the inner ring allow the bearing to accommodate angular misalignment of the shaft relative to the housing. This makes it ideal for applications where shaft deflection or mounting errors might occur.

With a tapered bore, the 2311 K enables convenient mounting on adapter sleeves and tapered shafts, supporting efficient installation and removal in mechanical assemblies. The bearing has an inside diameter of 55 mm and an outside diameter of 120 mm, ensuring compatibility with numerous industrial shaft and housing designs. The race width of 43 mm further contributes to stable positioning and uniform load distribution across the bearing assembly.

The sheet metal cage is engineered for smooth operation, maintaining precise ball separation and reducing internal friction. Steel is used for both balls and cage construction, ensuring robust performance and extended service life even under demanding conditions. The open end design allows for quick inspection and easier maintenance without dismantling the entire assembly.

SKF’s 2311 K provides a static load rating of 24 kN and a dynamic load rating of 76.1 kN, making it suitable for both heavy and moderate-load mechanical applications such as industrial motors, pumps, gearboxes, and conveyor systems. The internal clearance CN offers normal radial play, while the limiting speed of 7500 rpm allows the bearing to operate efficiently in medium and high-speed environments.

The self-aligning ball bearing series is renowned for its reliability and the ability to compensate for static and dynamic misalignment, reducing premature wear and vibration in assemblies. This specific bearing is designed for industrial use, mechanical assemblies, fluid power systems, and rotary machines where precise alignment cannot always be guaranteed.

For engineers, manufacturers, and maintenance professionals, SKF’s 2311 K self-aligning ball bearing offers a solution for reliability, long service intervals, and ease of installation. Explore the Ball Bearings category for more advanced rotary bearing solutions from SKF.