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
N234M
170
310
52
4
4
272
585000
635000
NF234M
170
310
52
4
4
272
585000
635000
NJ234EM
170
310
52
4
4
207
740000
800000
NU234EM
170
310
52
4
4
207
740000
800000
NUP234EM
170
310
52
4
4
207
740000
800000
NJ2234EM
170
310
86
4
4
205
1140000
1330000
NU2234EM
170
310
86
4
4
205
1140000
1330000
NUP2234EM
170
310
86
4
4
205
1140000
1330000
N334M
170
360
72
4
4
310
980000
1010000
NF334M
170
360
72
4
4
310
980000
1010000
NJ334EM
170
360
72
4
4
218
1140000
1150000
NU334EM
170
360
72
4
4
218
1140000
1150000
NUP334EM
170
360
72
4
4
218
1140000
1150000
NJ2334EM
170
360
120
4
4
216
1830000
2070000
NU2334EM
170
360
120
4
4
216
1830000
2070000
NUP2334EM
170
360
120
4
4
216
1830000
2070000
N1036
180
280
46
2.1
2.1
255
435000
510000
NF1036
180
280
46
2.1
2.1
255
435000
510000
NJ1036
180
280
46
2.1
2.1
205
435000
510000
NU1036
180
280
46
2.1
2.1
205
435000
510000
N236M
180
320
52
4
4
282
610000
675000
NF236M
180
320
52
4
4
282
610000
675000
NJ236EM
180
320
52
4
4
217
770000
850000
NU236EM
180
320
52
4
4
217
770000
850000