Class II cylindrical roller bearings, as a common mechanical component, play a crucial role in industrial production and mechanical equipment. Its main functional roles can be summarized as follows:
1、 Supporting and bearing loads
Large radial bearing capacity: The rollers of cylindrical roller bearings are in linear contact with the raceway, allowing them to withstand large radial loads, making them suitable for mechanical equipment that needs to withstand heavy loads, such as cranes, metallurgical equipment, etc.
Bearing impact load: Due to its structural characteristics and material selection, this type of bearing also has a certain ability to withstand impact loads and maintain stable performance under harsh working conditions.
2、 Transmitting rotational power
Cylindrical roller bearings can efficiently transmit rotational power, ensuring the normal operation of mechanical equipment. In industrial equipment and machinery, such as automobile engines, wind turbines, machine tools, aircraft engines, etc., Class II cylindrical roller bearings play a key role in supporting the rotation of rotating bearings.
3、 Adapt to axial displacement
Free end support: Some Class II cylindrical roller bearings (such as N-type and NU type) allow the shaft to move axially relative to the housing within a certain range, and can adapt to changes in the relative position between the shaft and the housing caused by thermal expansion or installation errors. They are most suitable for use as free end bearings.
Fixed end support: while other types of bearings (such as NUP type, NH type) can limit the displacement of the shaft relative to the bearing seat in both axial directions. In addition to bearing radial loads, they can also withstand a small amount of bidirectional axial loads, making them suitable for use as fixed end bearings.
4、 High speed operation and long lifespan
Low friction coefficient: The rolling elements of cylindrical roller bearings have low friction with the retaining edges of the rings, making them suitable for high-speed rotation, with a maximum speed close to that of deep groove ball bearings.
Wear resistant and durable: Made of high-quality materials and precision manufacturing processes, it has high wear resistance and durability, and can maintain a long service life.
5、 Diverse structures and wide applications
Diverse structures: According to the presence or absence of retaining edges in the ring, it can be divided into single row cylindrical roller bearings (such as NU, NJ, NUP, N, NF, etc.) and double row cylindrical roller bearings (such as NNU, NN, etc.). Bearings with different structures are also reflected in the design of the position of the retaining edge to meet the needs of different application scenarios.
Widely used: Class II cylindrical roller bearings are widely used in various mechanical equipment, including automobiles, motors, metallurgical equipment, engineering machinery, construction machinery, agricultural machinery, and heavy machinery equipment. It is also widely used in industries such as conveyor belts, rollers, textile machinery, printing machinery, food processing equipment, etc.
In summary, Class II cylindrical roller bearings play a crucial role in the mechanical manufacturing industry due to their superior performance and wide range of applications.
