COOPER NU 23/115 EB GR Cylindrical Roller Bearing - Heavy Duty Precision - 115x250x80mm

The NU 23/115 EB GR cylindrical roller bearing is engineered for the most demanding high-load industrial applications where radial capacity and reliability are paramount. Featuring the 'NU' design, this bearing utilizes two integral flanges on the outer ring and a flangeless inner ring, allowing for free axial displacement relative to the shaft. The heavy-duty 23 series dimensional configuration provides exceptional stiffness and load-carrying capability, making it ideal for large gearboxes, mining machinery, and rolling mill applications. The 'EB' designation signifies an optimized internal design, often incorporating a robust, reinforced brass or optimized polymer cage (depending on specific Cooper configuration) that improves lubrication flow and mechanical stability under high operating temperatures and speeds. As a COOPER branded product, this bearing ensures maximum operational lifespan and minimized unplanned downtime. The 'GR' clearance/tolerance classification indicates a specific precision standard tailored for critical installations, guaranteeing optimal fit and performance in high-precision or high-speed machinery. With a substantial dynamic load rating, the NU 23/115 EB GR is the definitive choice for maintenance professionals seeking a durable, high-performance solution that reduces maintenance frequency and increases overall operational efficiency in continuous process environments. This unit delivers superior vibrational stability and wear resistance compared to standard series bearings.

Key Features

• Extra Heavy Duty 23 Series Design for extreme radial load tolerance.
• NU Configuration supports shaft thermal expansion and misalignment (axial movement freedom).
• Optimized EB Internal Geometry for increased roller capacity and superior cage stability.
• Reinforced Cage reduces friction and heat generation, prolonging lubricant life.
• GR Precision tolerance classification ensures precise installation and high-speed stability.
• Ideal for use in large industrial pumps, crushers, continuous casters, and reduction gearboxes.

Technical Specifications