**Introduction to NSK’s Double Row Cylindrical Roller Bearings: Precision, Performance, and Reliability**
In the demanding world of industrial machinery, automotive systems, and precision equipment, the performance and durability of rotating components are critical to operational success. NSK, a global leader in motion and control technologies, offers a superior solution with its **Double Row Cylindrical Roller Bearings**—engineered to deliver unmatched load capacity, rigidity, and precision in even the most challenging applications.
### **Technical Features & Design Excellence**
NSK’s **Double Row Cylindrical Roller Bearings** are designed with advanced engineering to optimize load distribution and minimize friction. Key features include:
– **High Load Capacity:** The double-row arrangement of precision-ground rollers significantly increases radial load capacity compared to single-row designs, making them ideal for heavy-duty applications.
– **Enhanced Rigidity:** A robust cage design ensures proper roller alignment, reducing deflection under high loads and improving system stability.
– **Low Friction & Heat Generation:** Optimized roller profiles and high-quality steel materials minimize energy loss, extending bearing life and reducing maintenance needs.
– **Precision Tolerance:** Manufactured to exacting ISO standards, these bearings provide consistent performance in high-speed and high-precision environments.
– **Versatile Configurations:** Available in various designs, including **NU, NN, and NNU types**, to accommodate different mounting requirements and operational demands.
### **Performance Advantages for Industrial & Automotive Applications**
NSK’s Double Row Cylindrical Roller Bearings excel in applications where reliability and precision are non-negotiable:
– **Industrial Machinery:** Used in machine tools, gearboxes, and rolling mills, these bearings ensure smooth operation under heavy radial loads and high rotational speeds.
– **Automotive Systems:** In transmissions, wheel hubs, and electric vehicle drivetrains, they provide the durability needed for long service life and reduced downtime.
– **Precision Equipment:** Critical in robotics, medical devices, and aerospace systems, where minimal vibration and high positional accuracy are essential.
### **Why Choose NSK?**
With over a century of expertise in bearing technology, NSK combines **advanced materials, precision manufacturing, and rigorous testing** to deliver bearings that outperform industry standards. Whether in extreme temperatures, contaminated environments, or high-speed operations, NSK’s Double Row Cylindrical Roller Bearings provide **longer service life, reduced energy consumption, and enhanced operational efficiency.**
For engineers and designers seeking a reliable, high-performance bearing solution, NSK’s Double Row Cylindrical Roller Bearings represent the ideal balance of **strength, precision, and durability**—ensuring optimal motion control in the most demanding applications.
*Experience the NSK advantage—where innovation meets precision engineering.*
Designations | Nominal Dimensions | Basic Load Ratings | Speeds Limiting Speeds |
||||||
---|---|---|---|---|---|---|---|---|---|
d mm |
D mm |
B mm |
r(min.) mm |
FW mm |
Cr N |
C0r N |
Grease min-1 |
Oil (Oil-bath) min-1 |
|
240 |
360 |
92 |
3 |
330 |
1050000 |
1600000 |
1500 |
1800 |
|
320 |
480 |
121 |
4 |
438 |
1660000 |
2670000 |
1100 |
1300 |
|
260 |
360 |
100 |
2.1 |
1150000 |
2100000 |
1400 |
1800 |
||
340 |
520 |
133 |
5 |
473 |
2050000 |
3300000 |
1000 |
1200 |
|
260 |
360 |
100 |
2.1 |
1150000 |
2100000 |
1400 |
1800 |
||
340 |
520 |
133 |
5 |
473 |
2050000 |
3300000 |
1000 |
1200 |
|
260 |
400 |
104 |
4 |
364 |
1270000 |
1920000 |
1400 |
1700 |
|
360 |
540 |
134 |
5 |
493 |
2090000 |
3450000 |
950 |
1200 |
|
260 |
400 |
104 |
4 |
364 |
1270000 |
1920000 |
1400 |
1700 |
|
360 |
540 |
134 |
5 |
493 |
2090000 |
3450000 |
950 |
1200 |
|
280 |
380 |
100 |
2.1 |
1180000 |
2230000 |
1300 |
1700 |
||
280 |
380 |
100 |
2.1 |
1180000 |
2230000 |
1300 |
1700 |
||
280 |
420 |
106 |
4 |
384 |
1330000 |
2080000 |
1300 |
1500 |
|
280 |
420 |
106 |
4 |
384 |
1330000 |
2080000 |
1300 |
1500 |
|
300 |
420 |
118 |
3 |
1510000 |
2870000 |
1200 |
1500 |
||
300 |
420 |
118 |
3 |
1510000 |
2870000 |
1200 |
1500 |
||
300 |
460 |
118 |
4 |
418 |
1590000 |
2460000 |
1200 |
1400 |
|
220 |
340 |
90 |
3 |
310 |
1000000 |
1480000 |
1700 |
2000 |
|
300 |
460 |
118 |
4 |
418 |
1590000 |
2460000 |
1200 |
1400 |
|
240 |
320 |
80 |
2.1 |
770000 |
1450000 |
1600 |
2000 |