Product Overview: NN 313 Double-Row Cylindrical Roller Bearing
The NN 313 is a high-precision, double-row cylindrical roller bearing, designed for applications demanding exceptional rigidity and high radial load-carrying capacity. With industry-standard dimensions of 65mm bore diameter, 140mm outer diameter, and 48mm thickness, this bearing is a key component in high-performance machinery. Part of our NN 3100 Series, it belongs to the broader family of Cylindrical Roller Bearings. Its double-row roller design provides superior radial stiffness, making it the preferred choice for machine tool spindles and other precision applications where shaft deflection must be minimized.
As a specialist supplier of industrial components, we ensure our NN 313 bearings meet stringent quality standards for reliable and long-lasting performance. The bearing's separable design allows the inner ring to be mounted independently from the outer ring and roller assembly, simplifying installation and maintenance procedures.
Key Features of the NN 313 Bearing
- Double-Row Design: Two rows of cylindrical rollers provide a very high radial load capacity and exceptional rigidity in a compact space.
- High Precision: Manufactured to tight tolerances, ensuring high rotational accuracy and stable performance, which is critical for precision machinery.
- Separable Components: The inner ring is separable, which facilitates easier mounting, dismounting, and inspection routines.
- High-Speed Capability: Engineered for low friction and minimal heat generation, allowing for reliable operation at high rotational speeds.
- Robust Construction: Made from high-quality bearing steel to withstand heavy loads and ensure a long operational lifespan.
- Optimized Internal Geometry: Designed to distribute loads evenly across the rollers, reducing stress and wear.
Common Applications
- Machine Tool Spindles: Widely used in lathes, milling machines, and grinding machines where precision and stiffness are paramount.
- Printing Presses: Provides stable support for rollers, ensuring consistent and high-quality printing results.
- Industrial Gearboxes: Handles heavy radial loads common in gear transmission systems, enhancing reliability.
- Rolling Mills: Suitable for the demanding environment of steel and metal processing equipment.
- Heavy-Duty Motors and Generators: Supports shafts in large electrical machinery, ensuring smooth and efficient rotation.
- Pumps and Compressors: Used in industrial-grade equipment that operates under continuous heavy radial loads.
- Textile Machinery: Ensures the precise and high-speed operation of various rotating components.
Benefits of Using the NN 313 Bearing
- Enhanced Machine Accuracy: The high rigidity minimizes shaft deflection under load, leading to more precise machining and operational outputs.
- Increased Load Capacity: Can support significantly higher radial loads compared to single-row bearings of similar dimensions.
- Extended Service Life: Durable materials and an optimized design reduce wear and tear, resulting in fewer replacements and less downtime.
- Improved Reliability: Offers stable and predictable performance even in demanding, high-load, and high-speed environments.
- Simplified Maintenance: The separable design makes installation and removal processes more straightforward, reducing maintenance time.
- High Operational Efficiency: Low-friction characteristics contribute to reduced energy consumption and cooler operating temperatures.
