Product Overview: The NA 6904 Machined Needle Roller Bearing
The NA 6904 is a precision-engineered needle roller bearing, featuring a machined outer ring and an inner ring, making it a key component in our NA Series of Machined Ring Bearings. With dimensions of 20x37x25mm (Bore x Outer Diameter x Thickness), this bearing is designed to handle high radial loads within a very compact space. Its robust construction ensures reliable performance in demanding industrial and automotive applications. The presence of an inner ring allows it to be used on shafts that have not been hardened and ground, offering greater design flexibility.
As part of our comprehensive range of Needle Roller Bearings, the NA 6904 is manufactured to stringent industry standards. Its caged roller design provides excellent roller guidance, making it suitable for applications with higher rotational speeds. This bearing is an ideal solution for engineers looking to minimize component size without compromising on load-carrying capacity or operational reliability.
Features of the NA 6904 Bearing
- High Radial Load Capacity: The needle roller design provides a large contact area, enabling it to support heavy radial loads.
- Compact and Space-Saving: Features a low cross-sectional height, making it perfect for applications with limited radial space.
- Includes Inner Ring: Allows for use on standard shafts without the need for special heat treatment or grinding, reducing overall costs.
- Machined Outer Ring: Offers high rigidity and precision, ensuring accurate and stable operation.
- Caged Roller Design: The cage separates and guides the rollers, reducing friction, minimizing heat, and allowing for higher speeds compared to full complement designs.
- Durable Construction: Manufactured from high-quality bearing steel for superior strength, hardness, and service life.
Applications of NA 6904 Bearings
- Automotive Transmissions: Commonly used in gearboxes and drivetrain components where space and load capacity are critical.
- Industrial Gearboxes: Provides reliable support for gear shafts in a compact and rigid assembly.
- Power Tools: Essential for the smooth operation of drills, saws, and other high-speed handheld equipment.
- Two-Stroke Engines: Used in connecting rods and crankshafts due to their high performance and compact size.
- Pumps and Compressors: Ensures efficient and durable operation of rotating components in various pump designs.
- Planetary Gear Sets: Ideal for use in planetary gears, where multiple bearings must fit within a small diameter.
- Textile and Printing Machinery: Offers precision and reliability for rollers and other moving parts.
Benefits of Using the NA 6904 Bearing
- Optimized Design Footprint: Enables more compact and lightweight machinery design without sacrificing performance.
- Enhanced Equipment Reliability: The robust construction and high load capacity lead to fewer failures and less downtime.
- Versatile Application: The inner ring makes it adaptable to various shaft materials and hardness levels, simplifying design and assembly.
- Improved Operational Efficiency: Low-friction operation contributes to reduced energy consumption and smoother performance.
- Extended Service Life: High-quality materials and precision engineering minimize wear, ensuring a long operational lifespan.
- Cost-Effective Solution: Eliminates the need for expensive shaft treatments, lowering total system cost.
