NU226 ECM ISB cylindrical roller bearing

ISB NU226 ECM Single Row Cylindrical Roller Bearing

The ISB NU226 ECM is a high-performance cylindrical roller bearing engineered for extreme radial load capacities. The NU type design features two integral flanges on the outer ring, while the inner ring has no flanges. This allows for unrestricted axial displacement of the shaft in both directions, which is vital for compensating thermal expansion in large-scale machinery. The ECM variant denotes a reinforced internal design (E) combined with a machined brass cage (M), providing superior roller guidance under high speeds and vibratory conditions.

Application

• Heavy-duty Electric Motors: Perfect as a non-locating (floating) bearing for high-power motors.
• Industrial Gearboxes: Reliable operation in nodes with very high radial stress.
• Turbines and Compressors: High stability at limiting speeds and fluctuating operating temperatures.
• Process Pumps: Resilience in harsh environments and resistance to lubricant chemical interaction due to the brass cage.
• Heavy Manufacturing Machinery: Support for main shafts in rolling mills and crushers.

Technical Specification

• Manufacturer: ISB (Italy)
• Designation: NU226 ECM
• Type: Single row cylindrical roller bearing
• Design: NU (Axially free, separable).
• Cage: ECM – Machined brass (roller-centered).
• Load Capacity: Primarily very high radial loads.

Note: Standard dimensions for the NU226 are 130 mm (Bore) × 230 mm (OD) × 40 mm (Width).

Features and Benefits

• Enhanced Geometry (E): Increased number and size of rollers for maximum dynamic load rating.
• Machined Brass Cage (M): Offers superior sliding properties and durability compared to steel or polyamide cages, especially in marginal lubrication conditions.
• Thermal Compensation: The inner ring’s ability to slide eliminates axial stress on the shaft.
• Separable Components: Allows for independent mounting of the rings, simplifying tight-fit installations on both the shaft and housing.
• High Rigidity: Linear contact of rolling elements ensures minimal deflection under heavy stress.

Why Choose This Product

The ISB NU226 ECM bearing is a "Heavy Duty" industrial solution. Combining Italian engineering precision with the robustness of a machined brass cage, it stands as one of the most durable components in its class. By choosing ISB, you invest in the operational continuity of strategic machinery, significantly lowering the risk of expensive failures and unscheduled production downtime.