Single-Row Cylindrical Roller Bearings

**Introduction to NSK’s Single Row Cylindrical Roller Bearings: Precision, Performance, and Reliability**

In the demanding world of industrial machinery, automotive systems, and precision equipment, the reliability and efficiency of rotating components are critical. NSK’s **Single Row Cylindrical Roller Bearings** stand at the forefront of precision motion and control technology, offering unmatched performance in high-load, high-speed applications. Engineered with advanced materials, precision manufacturing, and innovative design features, these bearings deliver exceptional durability, reduced friction, and extended service life—ensuring optimal performance in even the most challenging environments.

### **Technical Features & Design Advantages**
NSK’s Single Row Cylindrical Roller Bearings are designed with a robust construction that maximizes load capacity while minimizing operational friction. Key features include:

– **High Radial Load Capacity:** The optimized roller and raceway geometry ensures even stress distribution, making these bearings ideal for heavy radial loads encountered in industrial gearboxes, machine tools, and powertrain systems.
– **Precision Ground Components:** Manufactured to ultra-tight tolerances, NSK’s bearings minimize vibration and noise, enhancing performance in precision applications such as robotics, medical equipment, and semiconductor manufacturing.
– **Superior Lubrication Retention:** Advanced cage designs and surface treatments improve lubricant distribution, reducing wear and extending maintenance intervals.
– **Heat-Resistant Materials:** High-grade steel and specialized heat treatments enhance durability, even in high-temperature environments like automotive transmissions or steel mill equipment.
– **Low Friction & Energy Efficiency:** Optimized internal geometry reduces power loss, contributing to energy savings in electric motors, wind turbines, and industrial automation systems.

### **Performance Advantages**
NSK’s Single Row Cylindrical Roller Bearings outperform conventional solutions by offering:
– **Longer Service Life:** Reduced wear and fatigue resistance ensure extended operational life, lowering total cost of ownership.
– **Enhanced Rigidity & Stability:** Precision alignment and optimized internal clearances improve machine accuracy, critical for CNC machining and robotics.
– **Versatility in Mounting:** Available in various configurations (e.g., NU, NJ, NUP designs), these bearings accommodate different shaft fixation requirements, simplifying integration into diverse machinery.

### **Typical Applications**
These bearings are widely used in industries where precision, reliability, and high load capacity are essential:
– **Industrial Machinery:** Gearboxes, pumps, compressors, and printing presses.
– **Automotive Systems:** Transmissions, wheel hubs, and electric vehicle drivetrains.
– **Precision Equipment:** Robotics, medical imaging devices, and aerospace actuators.

By combining cutting-edge engineering with rigorous quality control, NSK’s Single Row Cylindrical Roller Bearings provide a dependable solution for applications demanding precision motion control, durability, and efficiency. Whether in high-speed production lines or mission-critical automotive systems, NSK ensures smooth, reliable performance—keeping industries moving forward.

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Designations Nominal Dimensions Basic Load Ratings
d
mm
D
mm
B
mm
r(min.)
mm
r1(min.)
mm
FW
mm
EW
mm
Cr
N
C0r
N
NU322EM
110
240
50
3
3
143
555000
525000
NUP322EM
110
240
50
3
3
143
555000
525000
N1024
120
180
28
2
1.1
165
171000
191000
NJ1024
120
180
28
2
1.1
135
171000
191000
NU1024
120
180
28
2
1.1
135
171000
191000
NUP1024
120
180
28
2
1.1
135
171000
191000
N224M
120
215
40
2.1
2.1
191.5
320000
320000
N224W
120
215
40
2.1
2.1
191.5
320000
320000
NF224M
120
215
40
2.1
2.1
191.5
320000
320000
NF224W
120
215
40
2.1
2.1
191.5
320000
320000
NJ224EM
120
215
40
2.1
2.1
143.5
410000
420000
NU224EM
120
215
40
2.1
2.1
143.5
410000
420000
NUP224EM
120
215
40
2.1
2.1
143.5
410000
420000
NJ2224EM
120
215
58
2.1
2.1
143.5
555000
620000
NU2224EM
120
215
58
2.1
2.1
143.5
555000
620000
NUP2224EM
120
215
58
2.1
2.1
143.5
555000
620000
N324M
120
260
55
3
3
226
585000
550000
N324W
120
260
55
3
3
226
550000
510000
NF324M
120
260
55
3
3
226
585000
550000
NF324W
120
260
55
3
3
226
550000
510000
NJ324EM
120
260
55
3
3
154
650000
610000
NU324EM
120
260
55
3
3
154
650000
610000
NUP324EM
120
260
55
3
3
154
650000
610000
NJ2324EM
120
260
86
3
3
154
975000
1030000