Product Overview: NN 3012 Double-Row Cylindrical Roller Bearing
The NN 3012 is a high-precision, double-row cylindrical roller bearing designed for applications demanding exceptional radial stiffness and high load-carrying capacity. With dimensions of 60x95x26mm, this bearing is a key component in our NN 3000 Series, a family renowned for its performance in high-speed and high-accuracy machinery. As part of our comprehensive range of Cylindrical Roller Bearings, the NN 3012 features two rows of cylindrical rollers, which provides a very high level of radial rigidity and makes it ideal for supporting shafts with heavy radial loads and minimal deflection.
The design of the NN 3012, typically with a tapered bore (K suffix) for precise clearance adjustment, allows for straightforward mounting and dismounting. Its primary function is to handle purely radial forces, making it an essential part for machine tool spindles, printing presses, and industrial gearboxes where rotational accuracy is paramount. Trust in our quality components to enhance the performance and longevity of your critical industrial equipment.
Key Features of the NN 3012 Bearing
- High Radial Load Capacity: The double-row roller design provides substantial capacity for heavy radial loads.
- Exceptional Rigidity: Engineered to offer high stiffness, minimizing shaft deflection under load and ensuring operational accuracy.
- High-Speed Capability: Optimized geometry and precision manufacturing allow for reliable operation at high rotational speeds.
- Separable Design: The inner ring is separable from the outer ring and roller assembly, simplifying the mounting and maintenance processes.
- Precision Machining: Manufactured to tight tolerances to ensure high running accuracy, crucial for precision applications.
- Compact Cross-Section: Offers a high load capacity within a relatively small radial space, enabling compact machine designs.
Common Applications of NN 3012 Bearings
- Machine Tool Spindles: Widely used in lathes, milling machines, and grinding machines where high rigidity and rotational precision are critical.
- Industrial Gearboxes: Provides robust support for gears and shafts, handling the high radial forces common in power transmission.
- Printing Machinery: Ensures the stable and accurate rotation of printing cylinders for consistent, high-quality output.
- Rolling Mills: Employed in support rollers and work rolls where heavy radial loads and high reliability are required.
- Electric Motors and Pumps: Used in heavy-duty motors and pumps to support the rotor shaft under significant radial stress.
- Heavy Industrial Equipment: Suitable for various demanding applications in construction, mining, and manufacturing machinery.
Benefits of Using the NN 3012 Bearing
- Enhanced Rotational Accuracy: High rigidity minimizes shaft movement, leading to more precise and consistent machine operation.
- Increased Machine Uptime: The robust design and high load capacity contribute to a longer service life and reduced instances of failure.
- Simplified Assembly: The separable nature of the bearing facilitates easier installation and dismounting, saving maintenance time.
- Improved Performance under Load: Maintains its operational characteristics even under heavy and fluctuating radial loads.
- Optimized for Radial Support: Specifically designed to handle radial forces, making it the ideal choice for applications without axial loads on the bearing.
- Reliable High-Speed Operation: Low-friction design ensures cool and stable performance in high-speed industrial applications.
