Product Overview: NN 3008 Double Row Cylindrical Roller Bearing
The NN 3008 is a high-precision, double-row cylindrical roller bearing engineered for applications demanding exceptional radial stiffness and high load-carrying capacity. With its dimensions of 40x68x22mm (Bore x Outer Diameter x Thickness), this bearing is a key component in machinery where minimal shaft deflection is critical. Part of the robust NN 3000 Series, the NN 3008 features two rows of cylindrical rollers, which provides a very rigid bearing arrangement. This design is specifically intended to handle heavy radial loads and is not suitable for axial loads.
As a specialist supplier of industrial mechanical parts, we provide NN 3008 bearings manufactured to the highest industry standards for reliable and long-lasting performance. Its separable design, where the inner ring is separate from the outer ring and roller assembly, facilitates easy mounting and dismounting. Explore our comprehensive range of Cylindrical Roller Bearings to find the ideal solution for your high-performance machinery needs.
Key Features of the NN 3008 Bearing
- Double Row Design: Two rows of cylindrical rollers provide a very high radial load capacity and exceptional rigidity.
- High Precision: Manufactured for high rotational accuracy, making it ideal for precision applications like machine tool spindles.
- Separable Inner Ring: Simplifies the process of mounting and dismounting, allowing for interference fits for both rings.
- Compact Cross-Section: Offers a high load capacity within a relatively small radial space.
- Purely Radial Load Support: Designed exclusively to accommodate heavy radial forces.
- Durable Construction: Made from high-quality bearing steel for superior wear resistance and extended operational life.
Common Applications
- Machine Tool Spindles: Provides the necessary rigidity and precision for lathes, milling machines, and grinding machines.
- High-Speed Rolling Mills: Used in mill stands where high loads and speeds are constant.
- Industrial Gearboxes: Supports gears and shafts in heavy-duty transmissions, ensuring stable operation.
- Printing Machinery: Ensures precise alignment and smooth rotation of print cylinders.
- Vibrating Screens and Shakers: Withstands heavy, continuous radial loads in material processing equipment.
- Heavy-Duty Motors and Generators: Provides robust support for rotors in large industrial electric motors.
- Pumps and Compressors: Suitable for applications requiring rigid support against heavy radial forces.
Benefits of Using the NN 3008 Bearing
- Enhanced Machine Accuracy: The high rigidity of the bearing minimizes shaft deflection under load, improving overall machine precision.
- Superior Load Capacity: Capable of supporting significantly higher radial loads compared to single-row or ball bearings of similar size.
- Increased Operational Speed: Its design and precision allow for high-speed operation without compromising performance.
- Simplified Maintenance: The separable design facilitates easier inspection, maintenance, and replacement procedures.
- Long Service Life: Robust design and high-quality materials ensure durability even in demanding industrial environments.
- Improved System Rigidity: Contributes to a stiffer overall machine structure, which is crucial for precision and performance.
