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Cylindrical Roller Bearing

The cylindrical roller and raceway are line contact bearings. They have large load capacity and mainly bear radial loads. The friction between the rolling element and the rib of the ferrule is small, which is suitable for high-speed rotation. According to whether the ferrule has ribs or not, they can be divided into single-row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double-row cylindrical roller bearings such as NNU and NN. The inner and outer rings of this bearing are separable.

Product details

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Model number Basic size Basic load rating Rated speed
Dynamic state Static Reference speed Limiting speed
d [mm] D [mm] B [mm] C [kN] C₀ [kN] [r/min] [r/min]
NU 310 ECM
 50 110 27 127 112 6700 8000
NU 310 ECJ
 50 110 27 127 112 6700 8000
NU 2310 ECP
 50 110 40 186 186 6700 8000
NU 2210 ECP
 50 90 23 90 88 8500 9000
NU 2210 ECM
 50 90 23 90 88 8500 9000
NU 2210 ECJ
 50 90 23 90 88 8500 9000
NU 210 ECP
 50 90 20 73.5 69.5 8500 9000
NU 210 ECM
 50 90 20 73.5 69.5 8500 9000
NU 210 ECJ
 50 90 20 73.5 69.5 8500 9000
NU 1010 ECP
 50 80 16 53 56 9500 9500
NJ 310 ECP
 50 110 27 127 112 6700 8000
NJ 310 ECML
 50 110 27 127 112 6700 12000
Model number Basic size Basic load rating Rated speed
Dynamic state Static Reference speed Limiting speed
d [in] D [in] B [in] C [Ibf] C₀ [Ibf] [r/min] [r/min]
NU 310 ECM
 6700 8000
NU 310 ECJ
 6700 8000
NU 2310 ECP
 6700 8000
NU 2210 ECP
 8500 9000
NU 2210 ECM
 8500 9000
NU 2210 ECJ
 8500 9000
NU 210 ECP
 8500 9000
NU 210 ECM
 8500 9000
NU 210 ECJ
 8500 9000
NU 1010 ECP
 9500 9500
NJ 310 ECP
 6700 8000
NJ 310 ECML
 6700 12000

Advantages


1. High load-bearing capacity: Cylindrical roller bearings adopt roller structure, which can bear high radial and axial loads and are suitable for high-load rotating 

bodies.


2. Low friction coefficient: Since cylindrical roller bearings have a large rolling contact area and a low friction coefficient, they have good lubrication performance 

and low friction resistance, which can effectively reduce mechanical energy consumption and wear.


3. High rotation accuracy: Cylindrical roller bearings adopt precision processing technology and have high rotation accuracy, which can ensure the stability and 

accuracy of mechanical equipment.


4. Good durability: Cylindrical roller bearings adopt high-quality materials and advanced heat treatment technology, with good durability and long service life.


5. Good adaptability: Cylindrical roller bearings can choose different designs, materials and sizes according to different application requirements, and have strong 

adaptability and flexibility.


6. Low maintenance cost: Cylindrical roller bearings have low maintenance costs, and only need regular lubrication and inspection to ensure their normal operation.




Applications


‌1. Large electric motors‌: Cylindrical roller bearings can withstand large radial loads and certain axial loads, and are suitable for occasions that require 

high loads and high-speed operation.


‌2. Machine tool spindles‌: Due to their excellent radial load capacity and high-speed rotation characteristics, cylindrical roller bearings are often used 

in machine tool spindles to ensure the stability and precision of the spindles.


‌3. Automotive industry‌: In the automotive industry, cylindrical roller bearings are used in various transmission parts, such as axle boxes, diesel engine 

crankshafts, etc., and can withstand heavy loads and impact loads.


‌4. Metallurgical equipment‌: In metallurgical equipment, such as cranes and rolling mills, cylindrical roller bearings can withstand huge radial loads and 

axial impact loads, ensuring the stable operation of the equipment.


‌5‌. Other mechanical equipment‌: Widely used in mechanical equipment such as vibrating screens, reducers, generators, gas turbines, etc., to adapt to 

various high-load and high-speed application scenarios