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
23038CAME4
190
290
75
2.1
970000
1350000
1100
1400
23038CAMKE4
190
290
75
2.1
970000
1350000
1100
1400
24038CAME4
190
290
100
2.1
1220000
1840000
1200
24038CAMK30E4
190
290
100
2.1
1220000
1840000
1200
24038CE4
190
290
100
2.1
1220000
1840000
900
1200
24038CK30E4
190
290
100
2.1
1220000
1840000
900
1200
23138CAME4
190
320
104
3
1480000
2020000
1100
23138CAMKE4
190
320
104
3
1480000
2020000
1100
23138CE4
190
320
104
3
1480000
2020000
850
1100
23138CKE4
190
320
104
3
1480000
2020000
850
1100
24138CAME4
190
320
128
3
1710000
2330000
1100
24138CAMK30E4
190
320
128
3
1710000
2330000
1100
24138CE4
190
320
128
3
1710000
2330000
850
1100
24138CK30E4
190
320
128
3
1710000
2330000
850
1100
22238CAME4
190
340
92
4
1420000
1730000
1000
1200
22238CAMKE4
190
340
92
4
1420000
1730000
1000
1200
23238CAME4
190
340
120
4
1800000
2350000
1100
23238CAMKE4
190
340
120
4
1800000
2350000
1100
23238CE4
190
340
120
4
1800000
2350000
800
1100
23238CKE4
190
340
120
4
1800000
2350000
800
1100
22338CAME4
190
400
132
5
2370000
2590000
900
1100
22338CAMKE4
190
400
132
5
2370000
2590000
900
1100
23940CAME4
200
280
60
2.1
710000
1060000
1100
1400
23940CAMKE4
200
280
60
2.1
710000
1060000
1100
1400