The NJ 304 Cylindrical Roller Bearing Product Overview

The NJ 304 is a high-performance single-row cylindrical roller bearing, engineered to support heavy radial loads and high-speed operation. With principal dimensions of 20x52x15mm, this bearing is a key component in our NJ 300 Series. Its design is part of the broader Cylindrical Roller Bearings category, known for their exceptional load-carrying capacity and rigidity.

The NJ 304 Cylindrical Roller Bearing Product Features

• 1. Exceptional Radial Load Capacity The cylindrical roller design maximizes contact area with raceways, enabling the bearing to withstand extremely high radial loads — far exceeding deep groove ball bearings of the same size — suitable for heavy-duty mechanical operations.
• 2. Separable Structure for Easy Maintenance Inner and outer rings can be disassembled separately, allowing quick mounting/dismounting without removing adjacent components, simplifying inspection, lubrication, and replacement.
• 3. High-Speed Adaptability Precision-machined rollers and optimized cage design minimize friction and centrifugal force at high speeds, ensuring stable operation even under rapid rotation, with low heat generation.
• 4. Stable & Durable Performance Made of high-strength bearing steel with heat treatment, it boasts excellent wear resistance and rigidity. The flange structure on the outer ring prevents axial displacement, enhancing operational stability.

NJ 304 Cylindrical Roller Bearings Applications

• 1. Industrial Gearboxes & Transmissions Essential for heavy-duty gearboxes in mining machinery, construction equipment, and industrial reducers, bearing radial loads from gear meshing and ensuring smooth power transmission.
• 2. Automotive Components Used in automotive gearboxes, drive shafts, and differential systems, adapting to high-speed rotation and frequent load changes during vehicle operation.
• 3. Machine Tools & Processing Equipment Applied in spindle components of lathes, milling machines, and drilling machines, supporting radial loads while maintaining high rotational accuracy for precise machining.
• 4. Heavy-Duty Pumps & Compressors Suitable for rotating shafts of industrial pumps, air compressors, and fans, withstanding continuous radial loads and harsh working conditions to ensure long-term reliable operation.

Cylindrical Roller Bearing