Cylindrical roller bearing：NF208

Basic Parameters

Type code "NF". "NF" represents a specific type in cylindrical roller bearings. Cylindrical roller bearings are mainly used to bear radial loads. The NF type bearing has its characteristics in structure and can better handle a certain axial load while meeting the radial load-bearing requirements. This type of bearing plays an important role in industrial applications, such as in some rotating equipment with both radial and axial forces.
Size series code "2". The size series code is used to determine the size specification range such as the width and outer diameter of the bearing. In cylindrical roller bearings, this size series "2" indicates that the bearing belongs to a series corresponding to medium size and load requirements. It helps users quickly locate bearings within the appropriate size range when selecting models according to specific installation space and required load-bearing capacity of the equipment. For example, when designing a small machine with limited space but requiring a certain load-bearing capacity, the bearings of size series "2" may be a more suitable choice.
Bore code "08". According to the regulations of bearing bore codes, multiplying the bore code by 5 is the actual inner diameter size of the bearing. So the "08" in NF208 indicates that the inner diameter of the bearing is 40mm (08×5 = 40). The inner diameter size is a key parameter for the fit between the bearing and the shaft. An accurate inner diameter can ensure a tight fit between the bearing and the shaft, enabling the bearing to effectively transfer loads during operation and reducing wear and heat generation, which is crucial for the service life of the bearing and the stable operation of the equipment.

NF208

Structural Features

• Outer Ring with Double Flanges Ensures Stability: The NF208 bearing has a double-flanged outer ring structure, which is the key to its stable operation. The double flanges are like solid barriers that precisely limit the axial movement range of the rollers, ensuring that the rollers roll stably along the predetermined trajectory during operation. This design enables the bearing to effectively handle a certain degree of axial load while bearing radial load. Whether it is the conventional axial force during equipment operation or the occasional axial impact, the double flanges of the outer ring of the NF208 bearing can maintain excellent stability and escort the smooth operation of the equipment.

• Inner Ring with Single Flange Optimizes Performance: The corresponding single-flanged inner ring design is ingenious. The single flange of the inner ring provides necessary axial positioning while closely cooperating with the double flanges of the outer ring to jointly create an efficient rolling space. It makes the movement of the rollers in the bearing more orderly and reduces unnecessary friction and energy loss. This not only helps improve the operating efficiency of the bearing but also extends the service life of the bearing and ensures the stable performance of the equipment during long-term operation.

• Overall Structure Ensures Precise Operation: The overall structure design of the NF208 bearing has been carefully optimized. From the dimensional accuracy of the rollers to the structural rationality of the cage, every detail is for achieving precise rotational movement. This precision is particularly crucial in equipment with high precision requirements, such as precision machine tools and motors. It can ensure that when the equipment is running at high speed, the cooperation between various components reaches the best state, thereby improving processing accuracy, reducing noise and vibration, and enhancing the overall performance of the equipment.

Performance advantages

• Outstanding load-carrying capacity: NF208 excels in load-carrying capacity. Its structural design enables it to easily handle large radial loads. In industrial equipment such as various transmission devices and heavy machinery, heavy load challenges are often encountered. With its strong radial load-carrying capacity, the NF208 bearing ensures the stable operation of equipment. At the same time, its good adaptability to a certain axial load further expands its application range under complex working conditions, effectively prolongs the service life of equipment, reduces downtime for maintenance due to bearing failures, and provides reliable support for your production.

• Good high-speed adaptability: In high-speed operation scenarios, the NF208 bearing is also very capable. The optimization of its internal structure and the selection of high-quality materials enable the bearing to maintain a low friction coefficient and stable working temperature during high-speed rotation. This is of great significance for high-speed equipment such as motors and fans. It can reduce energy loss, improve the operating efficiency of equipment, and ensure the smoothness and reliability of operation. Even under long-term high-speed operation, the NF208 bearing can maintain stable performance and provide continuous power support for your production process, helping to improve production efficiency.

• High rotational precision and stability: For precision machining and high-precision equipment, the NF208 bearing is an ideal choice. Its excellent rotational precision and stability can ensure accurate positioning and motion control during the operation of equipment. In the machining process of precision machine tools, the NF208 bearing can effectively reduce tool wear and improve the surface quality of processed parts, thereby enhancing product precision and quality. In equipment such as automated production lines, its high stability helps improve the operating reliability and production efficiency of equipment, reduce scrap rates, and enhance the market competitiveness of products.

Product Application

• Core support in the field of industrial transmission: In various industrial transmission equipment, the NF208 bearing plays an irreplaceable role. For example, in equipment such as reducers, transmissions, and conveyor belt drive devices, as a key component, it stably transmits power and ensures the smooth operation of the transmission system. Its good load-bearing capacity and high-speed performance enable industrial transmission equipment to efficiently complete various production tasks. Whether in low-speed heavy-load or high-speed operating conditions, the NF208 bearing can provide solid support for the transmission system and ensure the continuity and stability of industrial production.

• Accurate guarantee for machine tool equipment: As the core equipment for precision machining, machine tools have extremely high requirements for bearing accuracy. The NF208 bearing is widely used in key parts such as machine tool spindles and worktable guides. It can meet the strict requirements of machine tools during high-speed cutting and high-precision machining processes and ensure the rotational accuracy and positioning accuracy of machine tools. During the machining process, the stable performance of the NF208 bearing helps reduce tool wear and improve the machining surface quality, thereby enhancing the overall machining performance of machine tools and providing a reliable guarantee for manufacturing high-precision mechanical parts, promoting the manufacturing industry to develop towards higher quality.

• Reliable partner in the automotive industry: The NF208 bearing also has extensive applications in parts such as the engine, transmission, and wheel hub of automobiles. It can adapt to the complex load changes of automobiles under different road conditions and driving conditions and ensure the reliability and durability of vehicles. In the engine, it provides stable support for the rotation of the crankshaft and ensures the smooth operation of the engine; in the transmission, it guarantees the smooth meshing of gears and realizes smooth shifting; in the wheel hub area, it bears various loads when the vehicle is driving and provides solid guarantee for your travel safety and enhances the overall performance and driving experience of the car.

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