Double Row Super-Precision Cylindrical Roller Bearings

What Are Double Row Super-Precision Cylindrical Roller Bearings?

These bearings feature two rows of precision-aligned cylindrical rollers, designed to support extremely high radial loads while maintaining superior running accuracy and rotational stability. Their rigid structure makes them ideal for precision equipment operating under elevated mechanical stress.

Key Features

• Exceptional Running Accuracy: Built to precision standards such as ISO Class P4 or better, ensuring minimal runout and superior spindle performance.
• High Radial Load Capacity: The double row configuration allows for greater load support compared to single row designs, especially under fluctuating forces.
• Low Friction Performance: Advanced surface finishes and optimized contact geometry reduce heat generation and energy loss at high speeds.
• Superior Rigidity: Increased stiffness ensures stable operation under dynamic conditions, enhancing machining quality and repeatability.

Applications

Double row super-precision cylindrical roller bearings are widely used in applications that require high rigidity and load-bearing capacity, including:

• High-performance CNC machine tool spindles
• Precision lathes and grinding machines
• High-speed industrial motor shafts
• Spindle systems in aerospace and robotics sectors

Benefits

• Reliable performance under heavy radial loads
• Reduced thermal expansion and vibration
• Improved surface finish and machining precision
• Extended operational lifespan in high-speed environments

Interchangeability

These bearings are fully interchangeable with equivalent models from leading manufacturers such as SKF, ensuring ease of integration and global availability.

Conclusion

For applications where both ultra-high precision and robust load capacity are required, double row super-precision cylindrical roller bearings offer the ideal combination of performance, durability, and reliability. Their rigid structure and optimized internal geometry make them indispensable in advanced machining systems and precision-driven industries.