Spherical Roller Bearings

**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.

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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
24128CAME4
140
225
85
2.1
835000
1160000
1200
1600
24128CAMK30E4
140
225
85
2.1
835000
1160000
1200
1600
23122CE4
110
180
56
2
480000
630000
1600
2000
23122CKE4
110
180
56
2
480000
630000
1600
2000
24122CAME4
110
180
69
2
575000
750000
1600
2000
24122CAMK30E4
110
180
69
2
575000
750000
1600
2000
24122CE4
110
180
69
2
575000
750000
1600
2000
24122CK30E4
110
180
69
2
575000
750000
1600
2000
22222EAE4
110
200
53
2.1
605000
645000
2600
3200
22222EAKE4
110
200
53
2.1
605000
645000
2600
3200
23222CAME4
110
200
69.8
2.1
645000
760000
1500
1900
23222CAMKE4
110
200
69.8
2.1
645000
760000
1500
1900
23222CE4
110
200
69.8
2.1
645000
760000
1500
1900
23222CKE4
110
200
69.8
2.1
645000
760000
1500
1900
21322CAME4
110
240
50
3
565000
545000
1300
1700
21322CAMKE4
110
240
50
3
565000
545000
1300
1700
22322EAE4
110
240
80
3
1030000
1120000
1400
1900
22322EAKE4
110
240
80
3
1030000
1120000
1400
1900
23024CAME4
120
180
46
2
395000
525000
1800
2200
23024CAMKE4
120
180
46
2
395000
525000
1800
2200
23024CDE4
120
180
46
2
395000
525000
1800
2200
23024CDKE4
120
180
46
2
395000
525000
1800
2200
24024CAME4
120
180
60
2
480000
680000
1500
2000
24024CAMK30E4
120
180
60
2
480000
680000
1500
2000