NU326 ECM ISB cylindrical roller bearing

ISB NU326 ECM Cylindrical Roller Bearing

The ISB NU326 ECM is a heavy-duty cylindrical roller bearing engineered for extreme industrial performance. The NU type design features two integral ribs on the outer ring and a smooth, ribless inner ring. This configuration allows the bearing to accommodate axial displacement of the shaft in both directions, making it an essential component for compensating thermal expansion in long-shaft machinery.

Application

• Heavy-duty Gearboxes: Managing massive radial loads in high-torque transmission systems.
• Large Electric Motors: Providing stable rotor support for heavy industrial units.
• Mining and Extraction: Drives for crushers, screens, and ball mills.
• Steel and Paper Mills: Rollers and drums operating under continuous high pressure.
• Large Industrial Pumps: Applications requiring high radial stiffness and high-speed reliability.

Technical Specification

• Manufacturer: ISB (Italy)
• Designation: NU326 ECM
• Design: NU Type (ribless inner ring)
• Cage: ECM – Machined brass cage, roller centered.
• Axial Function: Non-locating bearing (allows axial float).

Note: Standard dimensions for the NU326 are 130 mm (Bore) × 280 mm (OD) × 58 mm (Width).

Features and Benefits

• Extreme Radial Load Capacity: Line contact between rollers and raceways provides significantly higher load ratings compared to ball bearings.
• Machined Brass Cage (ECM): Offers superior durability, excellent vibration resistance, and natural lubricating properties, reducing heat buildup.
• Non-locating Function: The NU design eliminates internal stresses caused by shaft thermal expansion, preventing premature failure.
• High-Speed Stability: Engineered to maintain precision even at high limiting speeds despite its large size.
• Premium Material Quality: ISB high-performance bearing steel ensures maximum resistance to material fatigue.

Why Choose This Product

The ISB NU326 ECM bearing is a top-tier choice for critical machinery where reliability is paramount. The combination of reinforced internal geometry and a robust brass cage ensures the safety of your most valuable drive units. By selecting ISB, you invest in European engineering standards that provide maximum uptime and long-term cost efficiency for heavy industrial operations.