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
NJ1040
200
310
51
2.1
2.1
229
480000
580000
NU1040
200
310
51
2.1
2.1
229
480000
580000
N240M
200
360
58
4
4
316
765000
865000
NF240M
200
360
58
4
4
316
765000
865000
NJ240EM
200
360
58
4
4
243
945000
1060000
NU240EM
200
360
58
4
4
243
945000
1060000
NUP240EM
200
360
58
4
4
243
945000
1060000
NJ2240EM
200
360
98
4
4
241
1500000
1870000
NU2240EM
200
360
98
4
4
241
1500000
1870000
NU232EM
160
290
48
3
3
195
615000
665000
NUP232EM
160
290
48
3
3
195
615000
665000
NJ2232EM
160
290
80
3
3
193
995000
1190000
NU2232EM
160
290
80
3
3
193
995000
1190000
NUP2232EM
160
290
80
3
3
193
995000
1190000
N332M
160
340
68
4
4
292
860000
875000
NJ332EM
160
340
68
4
4
204
1060000
1050000
NU332EM
160
340
68
4
4
204
1060000
1050000
NUP332EM
160
340
68
4
4
204
1060000
1050000
NJ2332EM
160
340
114
4
4
204
1610000
1820000
NU2332EM
160
340
114
4
4
204
1610000
1820000
NUP2332EM
160
340
114
4
4
204
1610000
1820000
N1034
170
260
42
2.1
2.1
237
355000
415000
NJ1034
170
260
42
2.1
2.1
193
355000
415000
NU1034
170
260
42
2.1
2.1
193
355000
415000