**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 |
|
100 |
215 |
47 |
3 |
495000 |
485000 |
1400 |
1900 |
|
100 |
215 |
47 |
3 |
495000 |
485000 |
1400 |
1900 |
|
100 |
215 |
73 |
3 |
860000 |
930000 |
1800 |
2400 |
|
100 |
215 |
73 |
3 |
860000 |
930000 |
1800 |
2400 |
|
110 |
170 |
45 |
2 |
293000 |
465000 |
2000 |
2400 |
|
110 |
170 |
45 |
2 |
293000 |
465000 |
2000 |
2400 |
|
110 |
170 |
60 |
2 |
380000 |
645000 |
1600 |
2200 |
|
110 |
170 |
60 |
2 |
380000 |
645000 |
1600 |
2200 |
|
110 |
180 |
56 |
2 |
480000 |
630000 |
1600 |
2000 |
|
110 |
180 |
56 |
2 |
480000 |
630000 |
1600 |
2000 |
|
60 |
110 |
28 |
1.5 |
178000 |
174000 |
4800 |
6000 |
|
60 |
110 |
28 |
1.5 |
178000 |
174000 |
4800 |
6000 |
|
60 |
130 |
31 |
2.1 |
238000 |
244000 |
3800 |
4800 |
|
60 |
130 |
31 |
2.1 |
238000 |
244000 |
3800 |
4800 |
|
60 |
130 |
46 |
2.1 |
340000 |
340000 |
3600 |
4500 |
|
60 |
130 |
46 |
2.1 |
340000 |
340000 |
3600 |
4500 |
|
65 |
120 |
31 |
1.5 |
221000 |
230000 |
4300 |
5300 |
|
65 |
120 |
31 |
1.5 |
221000 |
230000 |
4300 |
5300 |
|
65 |
140 |
33 |
2.1 |
264000 |
275000 |
3600 |
4500 |
|
65 |
140 |
33 |
2.1 |
264000 |
275000 |
3600 |
4500 |
|
65 |
140 |
48 |
2.1 |
375000 |
380000 |
3200 |
4000 |
|
65 |
140 |
48 |
2.1 |
375000 |
380000 |
3200 |
4000 |
|
70 |
125 |
31 |
1.5 |
225000 |
232000 |
4000 |
5300 |
|
70 |
125 |
31 |
1.5 |
225000 |
232000 |
4000 |
5300 |
|