Product Overview: The NA 4901 Machined Ring Needle Roller Bearing
The NA 4901 is a high-precision needle roller bearing featuring a machined outer ring and an inner ring, making it a robust solution for applications with high radial loads and limited space. With principal dimensions of 12x24x13mm (Bore x Outer Diameter x Thickness), this bearing is a key component in our NA Series of Machined Ring Bearings. Its design incorporates a cage to guide the rollers, enabling high-speed operation while maintaining exceptional rigidity. The inclusion of an inner ring allows for its use on shafts that have not been hardened, providing greater versatility.
As a leading supplier of industrial components, we ensure our NA 4901 bearings meet stringent quality standards. This bearing is engineered for superior performance in demanding environments, offering a compact and reliable solution for various mechanical and automotive applications. Explore our complete range of Needle Roller Bearings to find the ideal component for your specific needs.
Key Features of the NA 4901 Bearing
- High Radial Load Capacity: Designed with a full complement of needle rollers to support heavy radial loads within a small cross-section.
- Compact and Rigid Design: The machined outer ring provides high rigidity and dimensional stability, ideal for space-constrained applications.
- Includes Inner Ring: Comes complete with a separable inner ring, allowing it to be mounted on standard soft steel shafts.
- High-Speed Capability: The cage-guided rollers reduce friction and heat generation, permitting higher rotational speeds than full complement designs.
- Precision Engineering: Manufactured to precise tolerances for consistent and reliable performance in critical applications.
- Versatile Mounting: Can be used with or without the inner ring, depending on whether the shaft is hardened and ground.
Common Applications of NA 4901 Bearings
- Automotive Transmissions: Commonly used in gearboxes and clutch assemblies where space is limited and load capacity is critical.
- Industrial Gearboxes: Provides robust support for gears and shafts in various industrial machinery.
- Two-Stroke Engines: Ideal for connecting rods and crankshafts due to its compact size and high performance.
- Power Tools: Used in drills, grinders, and saws to support rotating components reliably.
- Pumps and Compressors: Ensures smooth and efficient operation of rotating shafts under heavy loads.
- Universal Joints: A key component in driveshafts, facilitating power transmission between misaligned shafts.
- Printing and Textile Machinery: Offers precise and reliable motion for rollers and other moving parts.
Benefits of Using the NA 4901 Bearing
- Space-Saving Solution: Its low cross-sectional height allows for more compact and lightweight machinery designs.
- Enhanced Durability: The rigid machined outer ring resists deformation under load, extending the bearing's service life.
- Reduced Maintenance: High-quality materials and construction minimize wear, leading to lower maintenance frequency and costs.
- Improved Operational Efficiency: Low friction characteristics contribute to smoother operation and reduced energy consumption.
- Design Flexibility: The option to use the bearing with or without its inner ring offers greater flexibility in machine design.
- Reliable Performance: Delivers consistent, high-level performance in applications with high speeds and heavy radial forces.
