Product Overview: The NK 1212 Needle Roller Bearing
The NK 1212 is a high-performance machined ring needle roller bearing, precision-engineered for applications requiring high radial load capacity within a minimal space. With a bore diameter of 12mm, an outer diameter of 20mm, and a width of 12mm, this bearing offers a compact and efficient solution for various industrial and automotive needs. As part of our extensive NK Series, it is designed without an inner ring, making it ideal for arrangements where the shaft can be hardened and ground to serve as the raceway. This design not only saves space but also enhances rigidity.
As a specialist supplier of industrial components, we provide top-tier Needle Roller Bearings that meet rigorous industry standards. The NK 1212, belonging to the Machined Ring Bearings category, is manufactured for durability and reliable operation, even under demanding conditions with high rotational speeds. Its cage-guided rollers ensure optimal performance and reduced friction, making it a dependable choice for your machinery.
Key Features of the NK 1212 Bearing
- High Radial Load Capacity: Features a full complement of needle rollers, providing excellent load-bearing capability in a small cross-section.
- Compact and Space-Saving: The design without an inner ring allows for a smaller overall bearing arrangement.
- Machined Outer Ring: A robust, channel-shaped outer ring ensures high rigidity and precision.
- Cage-Guided Rollers: The cage provides precise guidance to the needle rollers, allowing for higher speeds and reduced friction.
- Requires Hardened Shaft: Designed to run directly on a hardened and ground shaft, which acts as the inner raceway.
- Versatile Application Range: Suitable for a wide variety of industrial and mechanical applications where space is a constraint.
Common Applications of NK 1212 Bearings
- Automotive Transmissions: Used in gearboxes and clutch assemblies due to their compact size and high load capacity.
- Industrial Gearboxes: Provides reliable support for gear shafts, ensuring smooth and efficient power transmission.
- Two-Stroke Engines: Ideal for connecting rods and piston pins where radial space is limited.
- Power Tools: Employed in drills, saws, and other handheld power equipment for robust performance.
- Pumps and Compressors: Ensures stable rotation of shafts and other components in fluid machinery.
- Textile Machinery: Used in various rotating parts that require precise and durable bearing solutions.
- Office Equipment: Found in printers, copiers, and other machines requiring compact motion components.
Benefits of Using the NK 1212 Bearing
- Enhanced Rigidity: The direct use of the shaft as a raceway creates a very stiff bearing arrangement.
- Reduced Component Count: Eliminating the inner ring simplifies the design and reduces the number of parts.
- Cost-Effective Solution: A more economical choice for applications where the shaft can be appropriately prepared.
- Improved Performance at High Speeds: The cage assembly ensures smooth roller operation, making it suitable for high-speed applications.
- Lower Frictional Heat: Efficient design minimizes friction, leading to cooler operation and extended service life.
- Optimal Space Utilization: Its small radial cross-section is perfect for designs with limited space.
