Product Overview: The NA 6900 Needle Roller Bearing
The NA 6900 is a high-precision machined ring needle roller bearing with an inner ring, featuring dimensions of 10x22x20mm. As a key component in our NA Series of Needle Roller Bearings, it is engineered for applications demanding high radial load capacity within a minimal space. Its robust design, which includes a machined outer ring and a full complement of needle rollers guided by a cage, ensures exceptional rigidity and smooth operation. The inclusion of an inner ring makes the NA 6900 versatile, as it can be used on shafts that have not been hardened and ground, simplifying design and reducing costs. This bearing is an ideal solution for compact and demanding mechanical assemblies.
Features of the NA 6900 Bearing
- High Radial Load Capacity: The line contact between the needle rollers and raceways allows it to support heavy radial loads.
- Compact and Rigid Design: Features a small cross-sectional height, saving space while the machined outer ring provides high rigidity.
- Includes Inner Ring: Allows for use with shafts that are not hardened, providing a ready-to-mount solution for various applications.
- Caged Roller Assembly: A cage securely guides the needle rollers, which reduces friction, minimizes heat generation, and allows for higher speed capabilities.
- Precision Engineering: Manufactured to tight tolerances for reliable and consistent performance in industrial machinery.
- Optimized Internal Design: Ensures uniform load distribution across the rollers, extending the bearing's service life.
Applications of NA 6900 Bearings
- Automotive Transmissions: Used in gear sets, clutches, and planetary gear systems where space is limited but load capacity is critical.
- Industrial Gearboxes: Provides reliable support for gears and shafts in various industrial reduction units.
- Two-Stroke Engines: Commonly found in connecting rod and crankshaft applications due to its high performance in oscillating conditions.
- Power Tools: Ideal for use in drills, saws, and other handheld power equipment requiring compact and durable bearings.
- Pumps and Compressors: Ensures smooth rotation and support for shafts in demanding fluid and air handling systems.
- Printing and Textile Machinery: Supports rollers and rotating components where precision and reliability are essential for operational quality.
- Universal Joints: A classic application for needle roller bearings, providing durable and efficient power transmission.
Benefits of Using the NA 6900 Bearing
- Space-Saving Solution: Its small radial footprint allows for more compact and lightweight machinery designs.
- Enhanced Machine Performance: High stiffness minimizes shaft deflection, leading to improved operational accuracy and efficiency.
- Cost-Effective Assembly: The integrated inner ring eliminates the need for expensive shaft hardening and grinding processes.
- Extended Service Life: High-quality materials and precision manufacturing result in a durable bearing that withstands demanding conditions.
- Reduced Maintenance Requirements: Reliable operation and resistance to wear lead to less frequent downtime and lower maintenance costs.
- Versatility in Application: Suitable for a wide range of industrial and automotive uses, from static to high-speed rotational applications.
