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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]
NJ2317EM
 85 180 60 315 382
NJ2316EM
 80 170 58 275 332
NJ2315EM
 75 160 55 275 327
NJ2314EM
 70 150 51 244 262
NJ2313EM
 65 140 48 190 212
NJ2312EM
 60 130 46 168 188
NJ2311EM
 55 120 43 148 162
NJ2310EM
 50 110 40 128 142
NJ2309EM
 45 100 36 106 113
NJ2308EM
 40 90 33 82 88
NJ2307EM
 35 80 31 64 66
NJ2306EM
 30 72 27 51 51
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]
NJ2317EM
NJ2316EM
NJ2315EM
NJ2314EM
NJ2313EM
NJ2312EM
NJ2311EM
NJ2310EM
NJ2309EM
NJ2308EM
NJ2307EM
NJ2306EM

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