Single-Row Cylindrical Roller Bearings

**Introduction to NSK Super Precision Cylindrical Roller Bearings**

In high-performance industrial and precision applications, where extreme accuracy, rigidity, and reliability are paramount, **NSK Super Precision Cylindrical Roller Bearings** stand out as a critical solution for demanding motion control challenges. Designed for applications requiring ultra-precise rotational performance, these bearings deliver exceptional load capacity, minimal friction, and outstanding dimensional stability—even under high-speed or heavy-load conditions.

### **Technical Features & Performance Advantages**

NSK’s **Single Row Super Precision Cylindrical Roller Bearings** are engineered with advanced materials, precision grinding techniques, and optimized internal geometries to meet the stringent requirements of modern machinery. Key features include:

– **Ultra-High Precision:** Manufactured to **ABEC 7, ABEC 9 (P4, P2)** tolerances, these bearings ensure minimal runout and vibration, making them ideal for applications where micron-level accuracy is essential.
– **Enhanced Load Capacity:** The optimized roller profile and high-grade steel construction provide superior **radial load support**, accommodating both high dynamic and static loads without compromising performance.
– **Low Friction & High-Speed Capability:** Advanced cage designs (such as machined brass or polymer cages) reduce friction and heat generation, enabling stable operation at **high rotational speeds (dn values exceeding 1 million)**.
– **Rigidity & Stability:** Precision-ground raceways and rollers enhance stiffness, minimizing elastic deformation under load—critical for machine tools, robotics, and aerospace systems.
– **Long Service Life:** NSK’s proprietary heat treatment and surface finishing technologies improve wear resistance and fatigue life, even in harsh operating environments.

### **Typical Applications**

Due to their unmatched precision and durability, NSK Super Precision Cylindrical Roller Bearings are widely used in industries where failure is not an option:

– **Machine Tools:** Spindles, rotary tables, and linear guide systems in CNC machining centers rely on these bearings for **high rigidity and positional accuracy** during heavy cutting operations.
– **Industrial Robotics:** Precision joints and articulated arms benefit from their **low torque and high responsiveness**, ensuring smooth, repeatable motion in automated assembly lines.
– **Aerospace & Defense:** Critical components in jet engine gearboxes, radar systems, and satellite positioning mechanisms demand bearings that can withstand **high speeds and extreme temperatures** without performance degradation.
– **Automotive Systems:** High-performance transmissions, turbochargers, and electric vehicle (EV) drivetrains utilize these bearings for **efficiency and durability under variable loads**.
– **Medical & Semiconductor Equipment:** Precision imaging devices, wafer handling robots, and laboratory automation systems require **contamination-resistant, low-vibration bearings** for flawless operation.

### **Conclusion**

NSK’s **Super Precision Single Row Cylindrical Roller Bearings** represent the pinnacle of motion control engineering, combining **ultra-tight tolerances, robust construction, and optimized dynamics** to meet the needs of the most demanding applications. Whether enhancing the accuracy of industrial machinery, extending the lifespan of automotive systems, or enabling breakthrough innovations in precision equipment, these bearings deliver **reliability, efficiency, and performance at the highest level**.

For engineers and designers seeking uncompromising quality, NSK’s precision bearings provide the **foundation for smoother, faster, and more precise motion control solutions**.

MORE +
CLOSE +
Designations Nominal Dimensions Basic Load Ratings Speeds
Limiting Speeds
d
mm
D
mm
B
mm
r(min.)
mm
r1(min.)
mm
Cr
kN
C0r
kN
Grease
min-1
Oil (Oil-air)
min-1
N1017RXZTP
85
130
22
1.1
1
38.5
43.0
12000
17000
N1028BMR1
140
210
33
2
1.1
189
240
4600
6300
N1017RXZTPKR
85
130
22
1.1
1
38.5
43.0
12000
17000
N1028BMR1KR
140
210
33
2
1.1
189.0
240.0
4600
6300
N1016RSZTP
80
125
22
1.1
1
36.5
39.5
9200
14000
N1018MR
90
140
24
1.5
1.1
101
114
7000
9600
N1030BMR
150
225
35
2.1
1.5
233
294
4300
5100
N1016RSZTPKR
80
125
22
1.1
1
36.5
39.5
9200
14000
N1018MRKR
90
140
24
1.5
1.1
101.0
114.0
7000
9600
N1030BMRKR
150
225
35
2.1
1.5
233.0
294.0
4300
5100
N1016RXTP
80
125
22
1.1
1
61.5
78.5
13000
17000
N1019BMR1
95
145
24
1.5
1.1
95
114
6700
9200
N1032BMR
160
240
38
2.1
1.5
330
340
4000
4800
N1016RXTPKR
80
125
22
1.1
1
61.5
78.5
13000
17000
N1019BMR1KR
95
145
24
1.5
1.1
95.0
114.0
6700
9200
N1032BMRKR
160
240
38
2.1
1.5
330.0
340.0
4000
4800
N1016RXZTP
80
125
22
1.1
1
36.5
39.5
13000
17000
N1020MR
100
150
24
1.5
1.1
107
126
6400
8800
N1034MR
170
260
42
2.1
2.1
330
415
3600
4400
N1016RXZTPKR
80
125
22
1.1
1
36.5
39.5
13000
17000