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
23228CAME4
140
250
88
3
1040000
1300000
1100
1500
23228CAMKE4
140
250
88
3
1040000
1300000
1100
1500
23228CE4
140
250
88
3
1040000
1300000
1100
1500
23228CKE4
140
250
88
3
1040000
1300000
1100
1500
22328CAME4
140
300
102
4
1450000
1590000
1200
1500
22328CAMKE4
140
300
102
4
1450000
1590000
1200
1500
22328CE4
140
300
102
4
1450000
1590000
1200
1500
22328CKE4
140
300
102
4
1450000
1590000
1200
1500
23030CAME4
150
225
56
2.1
590000
815000
1400
1800
23030CAMKE4
150
225
56
2.1
590000
815000
1400
1800
23030CDE4
150
225
56
2.1
590000
815000
1400
1800
23030CDKE4
150
225
56
2.1
590000
815000
1400
1800
24030CAME4
150
225
75
2.1
740000
1090000
1200
1500
24030CAMK30E4
150
225
75
2.1
740000
1090000
1200
1500
24030CE4
150
225
75
2.1
740000
1090000
1200
1500
24030CK30E4
150
225
75
2.1
740000
1090000
1200
1500
23130CAME4
150
250
80
2.1
905000
1180000
1100
1400
23130CAMKE4
150
250
80
2.1
905000
1180000
1100
1400
23130CE4
150
250
80
2.1
905000
1180000
1100
1400
23130CKE4
150
250
80
2.1
905000
1180000
1100
1400
24130CAME4
150
250
100
2.1
1070000
1450000
1100
1400
24130CAMK30E4
150
250
100
2.1
1070000
1450000
1100
1400
24130CE4
150
250
100
2.1
1110000
1530000
1100
1400
24130CK30E4
150
250
100
2.1
1110000
1530000
1100
1400