**NSK Spherical Roller Bearings: Precision Motion for Demanding Industrial Applications**
In the world of precision motion and control, NSK stands as a leader in delivering high-performance bearing solutions designed to meet the rigorous demands of modern industrial machinery, automotive systems, and precision equipment. Among NSK’s extensive portfolio of roller bearings, **Spherical Roller Bearings** stand out for their exceptional load capacity, self-aligning capability, and durability—making them indispensable in applications where misalignment, heavy loads, and harsh operating conditions are common challenges.
### **Technical Features & Design Excellence**
NSK’s Spherical Roller Bearings are engineered with a robust double-row barrel-shaped roller design, paired with a spherical outer ring raceway. This unique construction allows the bearings to accommodate **both radial and axial loads simultaneously**, while compensating for **shaft misalignment**—a critical advantage in machinery subject to deflection or mounting inaccuracies. Key technical features include:
– **High Load Capacity:** Optimized roller geometry and advanced heat treatment processes ensure superior resistance to dynamic and static loads, extending service life even under extreme stress.
– **Self-Alignment Capability:** The spherical outer ring design permits up to **2-3 degrees of angular misalignment**, reducing stress concentrations and preventing premature failure in applications where shaft deflection or housing distortion occurs.
– **Enhanced Lubrication & Sealing:** NSK incorporates advanced sealing solutions and lubrication technologies to minimize friction, reduce wear, and prevent contamination—critical for bearings operating in dirty or high-temperature environments.
– **Precision-Grade Manufacturing:** Manufactured to tight tolerances using high-quality steel and advanced grinding techniques, NSK Spherical Roller Bearings deliver smooth, vibration-free operation essential for precision equipment.
### **Performance Advantages for Industrial & Automotive Applications**
NSK’s Spherical Roller Bearings excel in applications requiring **high reliability, long service life, and minimal maintenance**. Their ability to handle heavy loads and misalignment makes them ideal for:
– **Industrial Machinery:** Used in gearboxes, conveyors, crushers, and mining equipment where shock loads and misalignment are prevalent.
– **Material Handling & Construction Equipment:** Essential for cranes, excavators, and heavy-duty pulleys where durability under variable loads is critical.
– **Automotive & Transportation:** Applied in truck axles, transmissions, and off-road vehicles that demand robust performance under harsh conditions.
– **Wind Turbines & Energy Systems:** Trusted in renewable energy applications where reliability and minimal downtime are paramount.
### **Conclusion: Engineered for Reliability & Efficiency**
NSK Spherical Roller Bearings represent the pinnacle of precision motion control, combining innovative design with high-performance materials to deliver unmatched reliability in the most demanding environments. Whether in heavy industry, automotive systems, or precision machinery, NSK’s bearings ensure **smooth operation, extended service life, and reduced maintenance costs**—reinforcing NSK’s reputation as a global leader in advanced bearing technology.
For industries that demand **durability, precision, and efficiency**, NSK Spherical Roller Bearings provide the optimal solution to enhance performance and productivity.
Designations | Nominal Dimensions | Basic Load Ratings | Speeds Limiting Speeds |
|||||
---|---|---|---|---|---|---|---|---|
d mm |
D mm |
B mm |
r (min.) mm |
Cr N |
C0r N |
Grease min-1 |
Oil (Oil-bath) min-1 |
|
560 |
820 |
195 |
6 |
5000000 |
10700000 |
320 |
400 |
|
600 |
980 |
300 |
7.5 |
8750000 |
17500000 |
220 |
280 |
|
630 |
1150 |
412 |
12 |
13400000 |
25600000 |
180 |
240 |
|
560 |
820 |
195 |
6 |
5000000 |
10700000 |
320 |
400 |
|
600 |
980 |
300 |
7.5 |
8750000 |
17500000 |
220 |
280 |
|
630 |
1150 |
412 |
12 |
13400000 |
25600000 |
180 |
240 |
|
560 |
820 |
258 |
6 |
5950000 |
13300000 |
260 |
340 |
|
600 |
980 |
375 |
7.5 |
10400000 |
21900000 |
220 |
280 |
|
670 |
900 |
170 |
6 |
4350000 |
10300000 |
260 |
340 |
|
560 |
820 |
258 |
6 |
5950000 |
13300000 |
260 |
340 |
|
600 |
980 |
375 |
7.5 |
10400000 |
21900000 |
220 |
280 |
|
670 |
900 |
170 |
6 |
4350000 |
10300000 |
260 |
340 |
|
560 |
920 |
280 |
7.5 |
7850000 |
15500000 |
240 |
320 |
|
600 |
1090 |
388 |
9.5 |
12700000 |
24900000 |
200 |
260 |
|
670 |
980 |
230 |
7.5 |
6850000 |
15000000 |
240 |
320 |
|
560 |
920 |
280 |
7.5 |
7850000 |
15500000 |
240 |
320 |
|
600 |
1090 |
388 |
9.5 |
12700000 |
24900000 |
200 |
260 |
|
670 |
980 |
230 |
7.5 |
6850000 |
15000000 |
240 |
320 |
|
560 |
920 |
355 |
7.5 |
9400000 |
19600000 |
240 |
320 |
|
630 |
850 |
165 |
6 |
4000000 |
9350000 |
300 |
360 |