**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 |
|
40 |
90 |
33 |
1.5 |
170000 |
153000 |
5300 |
6700 |
|
55 |
120 |
29 |
2 |
178000 |
174000 |
4500 |
5600 |
|
25 |
62 |
17 |
1.1 |
43000 |
40500 |
5300 |
6700 |
|
45 |
85 |
23 |
1.1 |
118000 |
111000 |
6000 |
7500 |
|
55 |
120 |
43 |
2 |
292000 |
292000 |
3800 |
4800 |
|
25 |
62 |
17 |
1.1 |
43000 |
40500 |
5300 |
6700 |
|
45 |
85 |
23 |
1.1 |
118000 |
111000 |
6000 |
7500 |
|
55 |
120 |
43 |
2 |
292000 |
292000 |
3800 |
4800 |
|
30 |
62 |
20 |
1 |
50000 |
50000 |
6000 |
7500 |
|
45 |
100 |
25 |
1.5 |
149000 |
144000 |
5000 |
6300 |
|
60 |
95 |
26 |
1.1 |
98500 |
141000 |
3600 |
4500 |
|
30 |
62 |
20 |
1 |
50000 |
50000 |
6000 |
7500 |
|
45 |
100 |
25 |
1.5 |
149000 |
144000 |
5000 |
6300 |
|
60 |
95 |
26 |
1.1 |
98500 |
141000 |
3600 |
4500 |