SKF NU 307 ECJ/C3 Cylindrical Roller Bearing - 35x80x21mm High Radial Load

The NU 307 ECJ/C3 is a high-performance single-row cylindrical roller bearing engineered for demanding industrial applications requiring superior radial load support and high rotational speeds. Its 'NU' designation signifies that the bearing features two integral flanges on the outer ring and a flangeless inner ring, making it a non-locating (floating) bearing. This design is crucial for accommodating significant axial displacement resulting from thermal expansion or misalignment within the shaft assembly without inducing damaging internal stresses. The enhanced 'ECJ' design denotes optimized internal geometry and high-strength pressed steel cage, ensuring quiet operation, increased rigidity, and a longer operational lifespan under continuous stress. Featuring C3 internal clearance, this bearing is specifically suited for applications where the operating temperature is higher than normal or where interference fits are utilized, providing the necessary running space to prevent premature wear and seizure. Typical applications include heavy-duty industrial gearboxes, large electrical motors, industrial pumps, and conveyor systems. When reliability and minimal downtime are paramount, the NU 307 ECJ/C3 delivers robust performance, ensuring maximum machinery uptime and reduced maintenance frequency. It is an ideal choice for machinery operators seeking premium SKF quality and documented performance consistency.

Key Features

• High-capacity single-row design optimized for high radial loads and speeds.
• Non-locating (floating) functionality accommodates axial thermal expansion.
• C3 internal clearance suitable for high-temperature operation or heavy interference fits.
• ECJ enhanced geometry and pressed steel cage (J) provides high durability and reduced friction.
• Exceptional stiffness and minimal deflection under heavy continuous use.
• Manufactured to SKF standards ensuring long operational life and reliability.

Technical Specifications